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Zhang T, Zhao M, Zhai M, Wang L, Ma X, Liao S, Wang X, Liu Y, Chen D. Improving the Resolution of Flexible Large-Area Tactile Sensors through Machine-Learning Perception. ACS Appl Mater Interfaces 2024; 16:11013-11025. [PMID: 38353218 DOI: 10.1021/acsami.3c17880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Industrial robots are the main piece of equipment of intelligent manufacturing, and array-type tactile sensors are considered to be the core devices for their active sensing and understanding of the production environment. A great challenge for existing array-type tactile sensors is the wiring of sensing units in a limited area, the contradiction between a small number of sensing units and high resolution, and the deviation of the overall output pattern due to the difference in the performance of each sensing unit itself. Inspired by the human somatosensory processing hierarchy, we combine tactile sensors with artificial intelligence algorithms to simplify the sensor architecture while achieving tactile resolution capabilities far greater than the number of signal channels. The prepared 8-electrode carbon-based conductive network achieves high-precision identification of 32 regions with 97% classification accuracy assisted by a quadratic discriminant analysis algorithm. Notably, the output of the sensor remains unchanged after 13,000 cycles at 60 kPa, indicating its excellent durability performance. Moreover, the large-area skin-like continuous conductive network is simple to fabricate, cost-effective, and can be easily scaled up/down depending on the application. This work may address the increasing need for simple fabrication, rapid integration, and adaptable geometry tactile sensors for use in industrial robots.
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Affiliation(s)
- Tong Zhang
- College of Electronic and Information Engineering, Shandong University of Science and Technology, 266590 Qingdao, China
| | - Minghui Zhao
- College of Electronic and Information Engineering, Shandong University of Science and Technology, 266590 Qingdao, China
| | - Mingxuan Zhai
- College of Electronic and Information Engineering, Shandong University of Science and Technology, 266590 Qingdao, China
| | - Lisha Wang
- Laser Institute, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, Shandong 266000, China
| | - Xingyu Ma
- College of Electronic and Information Engineering, Shandong University of Science and Technology, 266590 Qingdao, China
| | - Shengmei Liao
- College of Electronic and Information Engineering, Shandong University of Science and Technology, 266590 Qingdao, China
| | - Xiaona Wang
- College of Electronic and Information Engineering, Shandong University of Science and Technology, 266590 Qingdao, China
| | - Yijian Liu
- College of Electronic and Information Engineering, Shandong University of Science and Technology, 266590 Qingdao, China
| | - Da Chen
- College of Electronic and Information Engineering, Shandong University of Science and Technology, 266590 Qingdao, China
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Zhu X, Zhou Z, Zhang J, Wu S. Large-area, size-controlled and transferable graphene oxide-metal films for humidity sensor. Nanotechnology 2024; 35:185501. [PMID: 38271722 DOI: 10.1088/1361-6528/ad22b2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/24/2024] [Indexed: 01/27/2024]
Abstract
The lack of low-cost methods to synthesize large-area graphene-based materials is still an important factor that limits the practical application of graphene devices. Herein, we present a facile method for producing large-area graphene oxide-metal (GO-M) films, which are size controllable and transferable. The sensor constructed using the GO-M film exhibited humidity sensitivity while being unaffected by pressure. The relationship between the sensor's resistance and relative humidity followed an exponential trend. The GO-Mg sensor was the most sensitive among all the tested sensors. The facile synthesis of GO-M films will accelerate the widespread utilization of graphene-based materials.
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Affiliation(s)
- Xiaobin Zhu
- School of Mechano-Electronic Engineering, Suzhou Vocational University, Suzhou, Jiangsu 215104, People's Republic of China
| | - Zhengcun Zhou
- School of Mechanical-Electrical Engineering, Guangdong University of Science and Technology, Dongguan, Guangdong 523083, People's Republic of China
| | - Jinlei Zhang
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, People's Republic of China
| | - Shuyi Wu
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, People's Republic of China
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3
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Liu H, Shi G, Khan R, Chu S, Huang Z, Shi T, Sun H, Li Y, Zhou H, Xiao P, Chen T, Xiao Z. Large-Area Flexible Perovskite Light-Emitting Diodes Enabled by Inkjet Printing. Adv Mater 2024; 36:e2309921. [PMID: 38016083 DOI: 10.1002/adma.202309921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/14/2023] [Indexed: 11/30/2023]
Abstract
Metal halide perovskite light-emitting diodes (PeLEDs) are attracting increasing attention due to their potential applications in flat panel lighting and displays. The solution process, large-area fabrication, and flexibility are attractive properties of PeLEDs over traditional inorganic LEDs. However, it is still very challenging to deposit uniform perovskite films on flexible substrates using a blade or slot-die coating, as the flexible substrate is not perfectly flat. Here, the inkjet printing technique is adopted, and the key challenges are overcome step-by-step in preparing large-area films on flexible substrates. Double-hole transporting layers are first used and a wetting interfacial layer to improve the surface wettability so that the printed perovskite droplets can form a continuous wet film. The fluidic and evaporation dynamics of the perovskite wet layer is manipulated to suppress the coffee ring effect by solvent engineering. Uniform perovskite films are obtained finally on flexible substrates with different perovskite compositions. The peak external quantum efficiency of the inkjet-printed PeLEDs reaches 14.3%. Large-area flexible PeLEDs (4 × 7 cm2 ) also show very uniform emission. This work represents a significant step toward real applications of large-area PeLEDs in flexible flat-panel lighting.
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Affiliation(s)
- Hui Liu
- Department of Physics, CAS Key Laboratory of Strongly coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
- School of Microelectronics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Guangyi Shi
- Department of Physics, CAS Key Laboratory of Strongly coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Rashid Khan
- Department of Physics, CAS Key Laboratory of Strongly coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Shenglong Chu
- Department of Physics, CAS Key Laboratory of Strongly coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zongming Huang
- Department of Physics, CAS Key Laboratory of Strongly coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Tongfei Shi
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, China
| | - Haiding Sun
- School of Microelectronics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yaping Li
- Center for Micro- and Nanoscale Research and Fabrication, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hongmin Zhou
- Instruments Center for Physical Science, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Peng Xiao
- Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Tao Chen
- Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zhengguo Xiao
- Department of Physics, CAS Key Laboratory of Strongly coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
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Park JS, Lim SWD, Amirzhan A, Kang H, Karrfalt K, Kim D, Leger J, Urbas A, Ossiander M, Li Z, Capasso F. All-Glass 100 mm Diameter Visible Metalens for Imaging the Cosmos. ACS Nano 2024; 18:3187-3198. [PMID: 38230651 PMCID: PMC10832996 DOI: 10.1021/acsnano.3c09462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/10/2023] [Accepted: 12/14/2023] [Indexed: 01/18/2024]
Abstract
Metasurfaces, optics made from subwavelength-scale nanostructures, have been limited to millimeter-sizes by the scaling challenge of producing vast numbers of precisely engineered elements over a large area. In this study, we demonstrate an all-glass 100 mm diameter metasurface lens (metalens) comprising 18.7 billion nanostructures that operates in the visible spectrum with a fast f-number (f/1.5, NA = 0.32) using deep-ultraviolet (DUV) projection lithography. Our work overcomes the exposure area constraints of lithography tools and demonstrates that large metasurfaces are commercially feasible. Additionally, we investigate the impact of various fabrication errors on the imaging quality of the metalens, several of which are specific to such large area metasurfaces. We demonstrate direct astronomical imaging of the Sun, the Moon, and emission nebulae at visible wavelengths and validate the robustness of such metasurfaces under extreme environmental thermal swings for space applications.
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Affiliation(s)
- Joon-Suh Park
- John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Soon Wei Daniel Lim
- John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Arman Amirzhan
- John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Hyukmo Kang
- Wyant
College of Optical Sciences, The University
of Arizona, Tucson, Arizona 85721, United States
| | - Karlene Karrfalt
- Wyant
College of Optical Sciences, The University
of Arizona, Tucson, Arizona 85721, United States
- Air
Force Research Laboratory, Wright-Patterson
Air Force Base, Dayton, Ohio 45433, United States
| | - Daewook Kim
- Wyant
College of Optical Sciences, The University
of Arizona, Tucson, Arizona 85721, United States
| | - Joel Leger
- Air
Force Research Laboratory, Wright-Patterson
Air Force Base, Dayton, Ohio 45433, United States
| | - Augustine Urbas
- Air
Force Research Laboratory, Wright-Patterson
Air Force Base, Dayton, Ohio 45433, United States
| | - Marcus Ossiander
- John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Institute
of Experimental Physics, Graz University
of Technology, 8010 Graz, Austria
| | - Zhaoyi Li
- John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Federico Capasso
- John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
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Wang J, Wang Y, Xian K, Qiao J, Chen Z, Bi P, Zhang T, Zheng Z, Hao X, Ye L, Zhang S, Hou J. Regulating Phase Separation Kinetics for High-Efficiency and Mechanically Robust All-Polymer Solar Cells. Adv Mater 2024; 36:e2305424. [PMID: 37541659 DOI: 10.1002/adma.202305424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/24/2023] [Indexed: 08/06/2023]
Abstract
All-polymer solar cells (all-PSCs) possess excellent operation stability and mechanical robustness than other types of organic solar cells, thereby attracting considerable attention for wearable flexible electron devices. However, the power conversion efficiencies (PCEs) of all-PSCs are still lagging behind those of small-molecule-acceptor-based systems owing to the limitation of photoactive materials and unsatisfactory blend morphology. In this work, a novel terpolymer, denoted as PBDB-TFCl (poly4,8-bis(5-(2-ethylhexyl)-4-fluorothiophen-2-yl)benzo[1,2-b:4,5-b″]dithiophene-1,3-bis(2-ethylhexyl)-5,7-di(thiophen-2-yl)-4H,8H-benzo[1,2-c:4,5-c″]dithiophene-4,8-dione-4,8-bis(4-chloro-5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene), is used as an electron donor coupled with a ternary strategy to optimize the performance of all-PSCs. The addition of PBDB-TCl unit deepens the highest occupied molecular orbital energy level, reducing voltage losses. Moreover, the introduction of the guest donor (D18-Cl) effectively regulates the phase-transition kinetics of PBDB-TFCl:D18-Cl:PY-IT during the film formation, leading to ideal size of aggregations and enhanced crystallinity. PBDB-TFCl:D18-Cl:PY-IT devices exhibit a PCE of 18.6% (certified as 18.3%), judged as the highest value so far obtained with all-PSCs. Besides, based on the ternary active layer, the manufactured 36 cm2 flexible modules exhibit a PCE of 15.1%. Meanwhile, the ternary PSCs exhibit superior photostability and mechanical stability. In summary, the proposed strategy, based on molecular design and the ternary strategy, allows optimization of the all-polymer blend morphology and improvement of the photovoltaic performance for stable large-scale flexible PSCs.
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Affiliation(s)
- Jianqiu Wang
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yafei Wang
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kaihu Xian
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin, 300072, China
| | - Jiawei Qiao
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250100, China
| | - Zhihao Chen
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Pengqing Bi
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Tao Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhong Zheng
- School of Chemistry and Biology Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiaotao Hao
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250100, China
| | - Long Ye
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin, 300072, China
| | - Shaoqing Zhang
- School of Chemistry and Biology Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Jianhui Hou
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemistry and Biology Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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6
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Chen W, Wang T, Wang T, Yu J, Yao S, Feng W, Wang Q, Huang L, Xu X, Yu X. Customizable Scintillator of Cs 3 Cu 2 I 5 :2% In + @Paper for Large-Area X-Ray Imaging. Adv Sci (Weinh) 2023; 10:e2304957. [PMID: 37870217 DOI: 10.1002/advs.202304957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/13/2023] [Indexed: 10/24/2023]
Abstract
High-resolution X-ray imaging is increasingly required for medical diagnosis and large-area detection. However, the issues of scattering and optical crosstalk are limiting the spatial resolution of the indirect X-ray imaging. In this study, a feasible and efficient strategy is proposed to in situ synthesize flexible Cs3 Cu2 I5 :2%In+ @paper as a superior scintillator film, which can be scaled up to an ultra-large area of 4800 cm2 . The as-obtained Cs3 Cu2 I5 :2%In+ @paper performs a fascinating photoluminescence quantum efficiency up to 88.14%, a steady state light yield of 70169 photons/MeV, and spatial resolution of 15 lp mm-1 . Moreover, the suppressed physical scattering and optical crosstalk of the corresponding film are demonstrated. Accordingly, this work explores a feasible fabrication of customizable scintillation films with large area for high-resolution X-ray detection.
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Affiliation(s)
- Weiqing Chen
- School of Mechanical Engineering, Institute for Advanced Materials, Chengdu University, Chengdu, 610106, P. R. China
- Faculty of Materials Science and Engineering, Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, Kunming, Yunnan, 650093, P. R. China
| | - Ting Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan, 610059, P. R. China
| | - Tianchi Wang
- Faculty of Materials Science and Engineering, Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, Kunming, Yunnan, 650093, P. R. China
| | - Jing Yu
- Faculty of Materials Science and Engineering, Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, Kunming, Yunnan, 650093, P. R. China
| | - Shuyi Yao
- Faculty of Materials Science and Engineering, Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, Kunming, Yunnan, 650093, P. R. China
| | - Wei Feng
- School of Mechanical Engineering, Institute for Advanced Materials, Chengdu University, Chengdu, 610106, P. R. China
| | - Qingyuan Wang
- School of Mechanical Engineering, Institute for Advanced Materials, Chengdu University, Chengdu, 610106, P. R. China
| | - Ling Huang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, P. R. China
| | - Xuhui Xu
- Faculty of Materials Science and Engineering, Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, Kunming, Yunnan, 650093, P. R. China
| | - Xue Yu
- School of Mechanical Engineering, Institute for Advanced Materials, Chengdu University, Chengdu, 610106, P. R. China
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Qiang H, Deng L, Bu H, Hu E, Zhao X, Hu F. Facile filter cloth brush-coating of large-area uniform silver nanowire conductive films for paper-based heater. Nanotechnology 2023; 35:015301. [PMID: 37774687 DOI: 10.1088/1361-6528/acfe80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/29/2023] [Indexed: 10/01/2023]
Abstract
Filter cloth brush-coating (FCBC), using soft filter cloth as a brush-coating medium, in conjunction with viscous silver nanowire (AgNW) conductive solution, is used to prepare AgNW conductive films. The density and uniformity of AgNWs deposited on the substrate are controlled by the interplay between the filter cloth aperture, the conductive solution viscosity, and the brush-coating speed. Further, with appropriate AgNW concentration and flow rate, uniform AgNW transparent conductive film with sheet resistance of 18 Ω sq-1and transmittance of 94% at 550 nm is acquired by FCBC. Due to the precise control of the coating process in FCBC, large-area uniform AgNW conductive film fabricated on printing paper has a low non-uniformity factor of 1.2% at a sheet resistance of 19.0 Ω sq-1. The resultant paper-based AgNW film heater shows sensitive and stable heating performance. FCBC shows great potential in producing large-area uniform AgNW films on various substrates.
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Affiliation(s)
- Haoyi Qiang
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), Nanjing, 210023, People's Republic of China
| | - Lingling Deng
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), Nanjing, 210023, People's Republic of China
| | - Huayin Bu
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), Nanjing, 210023, People's Republic of China
| | - Ertao Hu
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), Nanjing, 210023, People's Republic of China
| | - Xinyan Zhao
- Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, People's Republic of China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, People's Republic of China
| | - Fangren Hu
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), Nanjing, 210023, People's Republic of China
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Kant C, Mahmood S, Seetharaman M, Katiyar M. Large-Area Inkjet-Printed Flexible Hybrid Electrodes with Photonic Sintered Silver Grids/High Conductive Polymer. Small Methods 2023:e2300638. [PMID: 37727075 DOI: 10.1002/smtd.202300638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/05/2023] [Indexed: 09/21/2023]
Abstract
The field of printed organic electronics has not only made flexible devices accessible but also allows the production process toward a high throughput industrial scale. The current research involves the inkjet-printing of an indium tin oxide-free large-area flexible hybrid electrode compose of a high conductivity organic layer (PEDOT: PSS) as a main electrode and inorganic silver nanoparticles-based grid/film for the auxiliary electrode. The current bottleneck in the roll-to-roll production of printed electronics is the time required for the conductive inks to dry and sinter. Flash sintering is used to dry nano-silver conductive ink to 77.6 m Ω □-1 sheet resistance in <20 ms, the quickest annealing procedure, without damaging flexible substrates. Flexible organic light-emitting diodes (OLEDs) are created with a large active area (500 mm2 ) to demonstrate the efficacy of the flexible hybrid electrodes and the excellent bending stability (4 mm bending radius) of OLEDs. Maximum current efficiency of 19.58 cd A-1 and a maximum luminescence of 8708 cd m-2 at a low turn-on voltage of 3.1 V for the small-area (16 mm2 ) OLEDs are achieved. This method is promising for reducing indium consumption and paving the way for creating new high throughout hybrid electrodes for large-area flexible printed electronics.
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Affiliation(s)
- Chandra Kant
- Materials Science and Engineering Department, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India
- National Centre for Flexible Electronics, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India
| | - Sadiq Mahmood
- Materials Science and Engineering Department, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India
- National Centre for Flexible Electronics, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India
| | - Madhu Seetharaman
- National Centre for Flexible Electronics, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India
| | - Monica Katiyar
- Materials Science and Engineering Department, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India
- National Centre for Flexible Electronics, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India
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9
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Li WG, Wang XD, Huang YH, Kuang DB. Ultrasound-Assisted Crystallization Enables Large-Area Perovskite Quasi-Monocrystalline Film for High-Sensitive X-ray Detection and Imaging. Adv Mater 2023:e2210878. [PMID: 37146980 DOI: 10.1002/adma.202210878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 04/10/2023] [Indexed: 05/07/2023]
Abstract
In recent years, halide perovskites have shown great application potential in X-ray detection due to their superior optoelectronic properties and high X-ray attenuation coefficient. However, the large-area perovskite fabrication for high performance X-ray detectors remains extremely challenging. Herein, ultrasound-assisted crystallization combined with hot-pressing method is proposed to prepare large-area (10 cm × 10 cm) and high-quality quasi-monocrystalline thick film of a mixed-cation perovskite MA0.42 FA0.58 PbI3 . The rapid ultrasound-assisted crystallization provides more homogeneous nucleation, which is essential to the fabrication of large-area and uniform perovskite microcrystalline film. Furthermore, the post hot-pressing treatment is implemented to fuse the crystal boundaries, rearrange the crystal grains and eliminate the voids between crystals, resulting in a quasi-monocrystalline film. After the hot-pressing treatment, the carrier mobility and the carrier mobility-lifetime product increased about 13-fold (from 1.8 cm2 s-1 V-1 to 23.5 cm2 s-1 V-1 ) and 18 times (from 8.4 × 10-6 cm2 V-1 to 1.5 × 10-4 cm2 V-1 ) respectively. As a result, a high-performance MA0.42 FA0.58 PbI3 quasi-monocrystalline X-ray detector was achieved with an impressively high sensitivity (1.16 × 106 μC Gyair -1 cm-2 ) and low detection limit (37.4 nGyair s-1 ), demonstrating the potential of the ultrasound-assisted crystallization and hot-pressing strategy from an industrial perspective. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Wen-Guang Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Xu-Dong Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Yu-Hua Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Dai-Bin Kuang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
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10
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Bala A, So B, Pujar P, Moon C, Kim S. In Situ Synthesis of Two-Dimensional Lateral Semiconducting-Mo:Se//Metallic-Mo Junctions Using Controlled Diffusion of Se for High-Performance Large-Scaled Memristor. ACS Nano 2023; 17:4296-4305. [PMID: 36606582 DOI: 10.1021/acsnano.2c08615] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Two-dimensional (2D) materials are favorable candidates for resistive memories in high-density nanoelectronics owing to their ultrathin scaling and controllable interfacial characteristics. However, high processing temperatures and difficulties in mechanical transfer are intriguing challenges associated with their implementation in large areas with crossbar architecture. A high processing temperature may damage the electrical functionalities of the bottom electrode, and mechanical transfer of 2D materials may introduce undesirable microscopic defects and macroscopic discontinuities. In this study, an in situ fabrication of an electrode and 2D-molybdenum diselenide (MoSe2) is reported. The controlled diffusion of selenium (Se) in the predeposited molybdenum (Mo) produces Mo//Mo:Se stacks with a few layers of MoSe2 on top and MoSex on the bottom. Diffusion-assisted Mo//Mo:Se fabrication is observed over a large area (4 in. wafer). Additionally, a 5 × 5 array of crossbar memristors (Mo//Mo:Se//Ag) is fabricated using the diffusion of Se in patterned Mo. These memristors exhibit a small switching voltage (∼1.1 V), high endurance (>250 cycles), and excellent retention (>15 000 s) with minimum cycle-to-cycle and device-to-device variation. Thus, the proposed nondestructive in situ technique not only simplifies the fabrication but also minimizes the number of required stages.
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Affiliation(s)
- Arindam Bala
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Byungjun So
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Pavan Pujar
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Changgyun Moon
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Sunkook Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
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11
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Meng K, Chen B, Xiao M, Zhai Y, Qiao Z, Yu R, Pan L, Zheng L, Chen G. Humidity-Insensitive, Large-Area-Applicable, Hot-Air-Assisted Ambient Fabrication of 2D Perovskite Solar Cells. Adv Mater 2023; 35:e2209712. [PMID: 36579894 DOI: 10.1002/adma.202209712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/12/2022] [Indexed: 06/17/2023]
Abstract
2D layered perovskites (LPs) have shown great potential to deliver high-performance photovoltaic devices with long-term stability. Despite many signs of progress being made in film quality and device performance, LP films are mainly processed in strict conditions and through non-scalable techniques. Here, the hot-air-assisted ambient fabrication technique is introduced to prepare LP films for efficient and stable solar cells. The high-quality LP films with good crystallinity, preferable orientation and desirable morphology are obtained by balancing the crystal nucleation and growth processes. Employing the synchrotron-based in situ grazing-incidence X-ray diffraction technique, hot air induces the solidification of solutes and forms an intermediate at the air-liquid interface, which transforms into 3D-like perovskite, followed by the growth of the 2D species toward the substrate. The optimal LP film delivers a device power conversion efficiency of 16.36%, the best value for the LP-based solar cells prepared by the non-spin-coating techniques. The solar cell performance is insensitive to the film processing humidity and the device size is upscalable, which promises real-world deployment of LP-based optoelectronic devices.
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Affiliation(s)
- Ke Meng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Bin Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Mingyue Xiao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Yufeng Zhai
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Zhi Qiao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Runze Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Li Pan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Liya Zheng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Gang Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
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12
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Tan L, Zhou J, Zhao X, Wang S, Li M, Jiang C, Li H, Zhang Y, Ye Y, Tress W, Ding L, Grätzel M, Yi C. Combined Vacuum Evaporation and Solution Process for High-Efficiency Large-Area Perovskite Solar Cells with Exceptional Reproducibility. Adv Mater 2023; 35:e2205027. [PMID: 36681866 DOI: 10.1002/adma.202205027] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 01/08/2023] [Indexed: 06/17/2023]
Abstract
Organic-inorganic hybrid perovskites exhibit outstanding performances in perovskite solar cells (PSCs). However, the complex solution chemistry of perovskites precursors renders it difficult to prepare large-area devices in a reproducible way, which is a prerequisite for the technology to make an impact beyond lab scale. Vacuum processing, instead, is an established technology for large-scale coating of thin films. However, with respect to the hybrid perovskites it is highly challenging due to the high vapor pressure of the organic ammonium halide. In this work, vacuum evaporation of lead iodide and solution processing of organic ammonium halide is combined to produce large-area homogeneous perovskite films with large grains in a highly reproducible way. The resulting PSCs achieve a power conversion efficiency (PCE) of 24.3% (certified 23.9%) on small area (0.10 cm2 ), 24.0% (certified 23.7%) on large area (1 cm2 ) and 20.0% for minimodule (16 cm2 ), and maintain 90% of its initial efficiency after 1000 h 1-sun operation. The vacuum evaporation prevents advert environmental effects on lead halide formation and guarantees a reproducible fabrication of high-quality large-area perovskite films, which opens a promising way for large-scale fabrication of perovskite optoelectronics.
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Affiliation(s)
- Liguo Tan
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Junjie Zhou
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Xing Zhao
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Siyang Wang
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Minghao Li
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Chaofan Jiang
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Hang Li
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Yu Zhang
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Yiran Ye
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Wolfgang Tress
- Institute of Computational Physics (ICP), ZHAW School of Engineering, Wildbachstr. 21, Winterthur, 8400, Switzerland
| | - Liming Ding
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, Department of Chemistry and Chemical Engineering, Swiss Federal Institute of Technology Lausanne, Lausanne, CH-1015, Switzerland
| | - Chenyi Yi
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
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13
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Wadhwa R, Thapa S, Deswal S, Kumar P, Kumar M. Wafer-scale controlled growth of MoS 2by magnetron sputtering: from in-plane to inter-connected vertically-aligned flakes. J Phys Condens Matter 2023; 35:124002. [PMID: 36657174 DOI: 10.1088/1361-648x/acb4d1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/19/2023] [Indexed: 06/17/2023]
Abstract
Recently, Molybdenum disulfide (MoS2) has attracted great attention due to its unique characteristics and potential applications in various fields. The advancements in the field have substantially improved at the laboratory scale however, a synthesis approach that produces large area growth of MoS2on a wafer scale is the key requirement for the realization of commercial two-dimensional (2D) technology. Herein, we report tunable MoS2growth with varied morphologies via radio frequency magnetron sputtering by controlling growth parameters. The controlled growth from in-plane to vertically-aligned (VA) MoS2flakes has been achieved on a variety of substrates (Si, Si/SiO2, sapphire, quartz, and carbon fiber). Moreover, the growth of VA MoS2is highly reproducible and is fabricated on a wafer scale. The flakes synthesized on the wafer show high uniformity, which is corroborated by the spatial mapping using Raman over the entire 2-inch Si/SiO2wafer. The detailed morphological, structural, and spectroscopic analysis reveals the transition from in-plane MoS2to VA MoS2flakes. This work presents a facile approach to directly synthesize layered materials by sputtering technique on wafer scale. This paves the way for designing mass production of high-quality 2D materials, which will advance their practical applications by integration into device architectures in various fields.
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Affiliation(s)
- Riya Wadhwa
- Functional and Renewable Energy Materials Laboratory, Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Sanjeev Thapa
- Functional and Renewable Energy Materials Laboratory, Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
- Department of Electronics and Computer Engineering, Institute of Engineering, Tribhuvan University, Lalitpur 284403, Nepal
| | - Sonia Deswal
- School of Physical Sciences Indian Institute of Technology Mandi, Mandi, Himachal Pradesh 175005, India
| | - Pradeep Kumar
- School of Physical Sciences Indian Institute of Technology Mandi, Mandi, Himachal Pradesh 175005, India
| | - Mukesh Kumar
- Functional and Renewable Energy Materials Laboratory, Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
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14
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Wang S, Lei Y, Chen H, Peng G, Wang Q, Wang H, Duan J, Jin Z. Vertically Oriented Porous PET as Template to Integrated Metal Halide for High-Performance Large-Area and Ultra-Flexible X-Ray Detector. Small 2022; 18:e2205095. [PMID: 36373681 DOI: 10.1002/smll.202205095] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/04/2022] [Indexed: 06/16/2023]
Abstract
High-performance X-ray detectors have immense potential in medical and security inspections. However, the current X-ray detectors are limited in flexible, high-spatial-resolution large-scale detection, and integration for imaging. Here, nuclear track-etched porous polyethylene terephthalate (PET) is developed as the template for preparing uniform, large-area (≥105 cm2 ), and flexible metal halide (MH)-based X-ray detectors. Adjustable high-density vertically oriented porous PET with adjustable thickness can provide proper physical support for flexible thick absorption film, thus improving X-ray absorption ability with excellent bending stability. Moreover, vertical channels can block the ion migration, lateral charge diffusion, and water/oxygen attacks, increasing activation energy for ionic transport, charge collection rate of electrodes, and environmental stability. Hence, the related detectors eventually obtain large sensitivity (6722 µC Gyair -1 cm-2 ), low detection limit (1.87 nGyair s-1 ), and high spatial resolution (5.17 lp mm-1 ) compared to the detectors without porous PET template. Meanwhile, the device shows no degradation after storage or working under various thermal attacks. MH-filled-PET is also monolithically integrated on the bottom circuit with different MHs and it is applied to single-pixel mode and fast linear-array imaging in a broad range of X-rays photon energy (20 to 160 keV).
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Affiliation(s)
- Shuo Wang
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Yutian Lei
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Huanyu Chen
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Guoqiang Peng
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Qian Wang
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Haoxu Wang
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Jinglai Duan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, Guangdong, 516000, China
| | - Zhiwen Jin
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
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15
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Li C, Hong W, Cai Q, Jian C. Directional Construction of a 1T 0.63-MoSe 2@MoP Multiphase-Interface Catalyst for Highly Efficient Alkaline Hydrogen Evolution. ACS Appl Mater Interfaces 2022; 14:30683-30691. [PMID: 35764915 DOI: 10.1021/acsami.2c04093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Alkaline water electrolysis is the most widely used technology for industrial hydrogen production. However, transition-metal dichalcogenides as inert alkaline hydrogen evolution electrocatalysts suffer from sluggish water adsorption and dissociation dynamics originating from the inappropriate intrinsic electronic structure. To address this issue, we report the synthesis of a type of multiphase-interface catalyst (MPIC), 1T0.63-MoSe2@MoP (1T = octahedral phase; MoSe2 = molybdenum selenide; MoP = molybdenum phosphide), that tunes the intrinsic interfacial electronic structure by multiphase synergy, promoting the alkaline hydrogen evolution reaction (HER). Consequently, the self-standing 1T0.63-MoSe2@MoP MPIC requires a small overpotential of 358 mV to reach a large current density of 1000 mA cm-2 in an alkaline freshwater electrolyte, along with impressive HER activity and stability at large current densities in an artificial alkaline seawater electrolyte. This work unravels the potential of Mo-based electrocatalysts for hydrogen evolution at high current densities, owing to the simple and mature synthesis process, which offers a vision to enable large-scale commercial hydrogen generation by seawater electrolysis. Meanwhile, density functional theory studies consistently confirm that the combination of metallic phase and intrinsic HER-active MoP in MoSe2 could successfully tune its electronic structure to improve the HER catalytic activity.
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Affiliation(s)
- Chen Li
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Dundee, Nethergate, Dundee DD1 4HN, U.K
| | - Wenting Hong
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Qian Cai
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Chuanyong Jian
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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16
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Fan JY, Liu ZX, Rao J, Yan K, Chen Z, Ran Y, Yan B, Yao J, Lu G, Zhu H, Li CZ, Chen H. High-Performance Organic Solar Modules via Bilayer-Merged-Annealing Assisted Blade Coating. Adv Mater 2022; 34:e2110569. [PMID: 35525536 DOI: 10.1002/adma.202110569] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/11/2022] [Indexed: 06/14/2023]
Abstract
Although encouraging progress is being made on spin-coated prototype cells, organic solar cells (OSCs) still face significant challenges, yet to be explored, for upscaling the multi-stacked photoactive layers in the construction of large-area modules. Herein, high-performance opaque and semitransparent organic solar modules are developed via a bilayer-merged-annealing (BMA)-assisted blade-coating strategy, achieving impressive efficiencies of 14.79% and 12.01% with respect to active area of 18.73 cm2 , which represent the best organic solar minimodules so far. It is revealed that the BMA strategy effectively resolves the de-wetting issues between polar charge transport layer solution and non-polar bulk heterojunction blends, hence improving the film coverage, along with electronic and electric contacts of multi-stacked photoactive layers. As result, organic solar modules coated under ambient conditions successfully retain the high-efficiency of small-area cells upon 312 times area scaling-up. Overall, this work provides a facile and effective method to fabricate high-performance organic solar modules under ambient conditions.
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Affiliation(s)
- Jing-Yuan Fan
- State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Zhi-Xi Liu
- State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Jack Rao
- Hangzhou Microquanta Semiconductor Co. LTD., Hangzhou, 310027, P. R. China
| | - Kangrong Yan
- State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Zeng Chen
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yixin Ran
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, P. R. China
| | - Buyi Yan
- Hangzhou Microquanta Semiconductor Co. LTD., Hangzhou, 310027, P. R. China
| | - Jizhong Yao
- Hangzhou Microquanta Semiconductor Co. LTD., Hangzhou, 310027, P. R. China
| | - Guanghao Lu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, P. R. China
| | - Haiming Zhu
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Chang-Zhi Li
- State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Hongzheng Chen
- State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
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17
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Hong SP, Lee KI, You HJ, Jang SO, Choi YS. Scanning Deposition Method for Large-Area Diamond Film Synthesis Using Multiple Microwave Plasma Sources. Nanomaterials (Basel) 2022; 12:1959. [PMID: 35745298 DOI: 10.3390/nano12121959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/31/2022] [Accepted: 06/06/2022] [Indexed: 02/06/2023]
Abstract
The demand for synthetic diamonds and research on their use in next-generation semiconductor devices have recently increased. Microwave plasma chemical vapor deposition (MPCVD) is considered one of the most promising techniques for the mass production of large-sized and high-quality single-, micro- and nanocrystalline diamond films. Although the low-pressure resonant cavity MPCVD method can synthesize high-quality diamonds, improvements are needed in terms of the resulting area. In this study, a large-area diamond synthesis method was developed by arranging several point plasma sources capable of processing a small area and scanning a wafer. A unit combination of three plasma sources afforded a diamond film thickness uniformity of ±6.25% at a wafer width of 70 mm with a power of 700 W for each plasma source. Even distribution of the diamond grains in a size range of 0.1–1 μm on the thin-film surface was verified using field-emission scanning electron microscopy. Therefore, the proposed novel diamond synthesis method can be theoretically expanded to achieve large-area films.
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18
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Nguyen DA, Park DY, Duong NT, Lee KN, Im H, Yang H, Jeong MS. Large-Area MoS 2 via Colloidal Nanosheet Ink for Integrated Memtransistor. Small Methods 2021; 5:e2100558. [PMID: 34927977 DOI: 10.1002/smtd.202100558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/24/2021] [Indexed: 06/14/2023]
Abstract
2D transition metal dichalcogenides (TMDs) exhibit intriguing properties for applications in optoelectronics and electronics, among which memtransistors received extensive attention as multifunctional devices. For practical applications of 2D TMDs, large-area fabrication of the materials via reliable processes, which is in trade-off with their quality, has been a long-standing issue. Here, a simple and effective way is proposed to fabricate large-area and high-quality molybdenum disulfide thin films using MoS2 colloidal ink through a spray coating, followed by a postsulfurization process. High-quality MoS2 thin films exhibit excellent optical and electrical properties that can be utilized in field-effect transistors (FETs) and memtransistor arrays. The MoS2 FETs show an average on/off ratio of 5 × 106 and a high electron mobility of 10.34 cm2 V-1 s-1 , which can be understood by the healing of sulfur vacancies, recrystallization, and the removal of the carbon contamination of the MoS2 . These MoS2 -based memtransistors present stable operations with a high switching ratio tuned by back gate and light illumination, which is promising for multiple-levels memory and complex neuromorphic computing. This study demonstrates a new strategy to fabricate 2D TMDs with large-area and high quality for integrated optoelectronic and memory device applications.
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Affiliation(s)
- Duc Anh Nguyen
- Division of Physics and Semiconductor Science, Dongguk University, Seoul, 04620, Republic of Korea
| | - Dae Young Park
- Department of Physics, Department of Energy Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Ngoc Thanh Duong
- Faculty of Materials Science and Engineering, Phenikaa University, Hanoi, 12116, Viet Nam
| | - Kang-Nyeoung Lee
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hyunsik Im
- Division of Physics and Semiconductor Science, Dongguk University, Seoul, 04620, Republic of Korea
| | - Heejun Yang
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Mun Seok Jeong
- Department of Physics, Department of Energy Engineering, Hanyang University, Seoul, 04763, Republic of Korea
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19
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Li S, Kou D, Zhang S, Ma W. Large-Area Fabrication of Structurally Colored and Humidity Sensitive Composite Nanofilm via Ultrasonic Spray-Coating. Polymers (Basel) 2021; 13:polym13213768. [PMID: 34771325 PMCID: PMC8587582 DOI: 10.3390/polym13213768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 11/26/2022] Open
Abstract
Intelligent structural colors have received extensive attention in recent years due to their diverse applications. However, the large-area, uniform, and cost-effective fabrication of ultra-thin structural color films is still challenging. Here, for the first time, we design and employ an ultrasonic spray-coating technique with non-toxic, green nano-silica and polyvinylpyrrolidone as raw materials, to prepare structural color films on silicon wafers. Due to the addition of polyvinylpyrrolidone, the coffee-ring effect during droplet drying is suppressed and uniform composite films are formed. We further perform a detailed study of the influence of various processing parameters including silica/polyvinylpyrrolidone concentration, substrate temperature, nozzle-to-substrate distance, and number of spray-passes on film roughness and thickness. By increasing the number of spray-passes from 10 to 30, the film thickness from 120 to 340 nm is modulated, resulting in different colors, and large-area and uniform colors on commercial round silicon wafers with 15 cm diameter are achieved. The silica/polyvinylpyrrolidone composite films show strong hydrophilicity and are sensitive to humidity changes, leading to quickly tunable and reversible structural colors. Quartz crystal microbalance with dissipation demonstrates water vapor adsorption and condensation on the nanofilm when increasing environmental humidity. Thereby, ultrasonic spray-coating as a novel film fabrication technique provides a feasible scheme for large-area preparation of intelligent structural colors.
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Affiliation(s)
| | | | | | - Wei Ma
- Correspondence: ; Tel.: +86-411-84986265
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20
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Wang Y, Duan C, Lv P, Ku Z, Lu J, Huang F, Cheng YB. Printing strategies for scaling-up perovskite solar cells. Natl Sci Rev 2021; 8:nwab075. [PMID: 34691715 PMCID: PMC8363337 DOI: 10.1093/nsr/nwab075] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/19/2021] [Accepted: 04/15/2021] [Indexed: 02/02/2023] Open
Abstract
Photovoltaic technology offers a sustainable solution to the problem of soaring global energy demands. Recently, metal halide perovskite solar cells (PSCs) have attracted worldwide interest because of their high power conversion efficiency of 25.5% and great potential in becoming a disruptive technology in the photovoltaic industry. The transition from research to commercialization requires advancements of scalable deposition methods for both perovskite and charge transporting thin films. Herein, we share our view regarding the current challenges to fabrication of PSCs by printing techniques. We focus particularly on ink technologies, and summarize the strategies for printing uniform, pinhole-free perovskite films with good crystallinity. Moreover, the stability of perovskite solar modules is discussed and analyzed. We believe this review will be advantageous in the area of printable electronic devices.
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Affiliation(s)
- Yulong Wang
- Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China
| | - Changyu Duan
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Pin Lv
- Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China
| | - Zhiliang Ku
- Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China
| | - Jianfeng Lu
- Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China
| | - Fuzhi Huang
- Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China
| | - Yi-Bing Cheng
- Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China
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21
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Pandey M, Syafutra H, Kumari N, Pandey SS, Abe R, Benten H, Nakamura M. Extreme Orientational Uniformity in Large-Area Floating Films of Semiconducting Polymers for Their Application in Flexible Electronics. ACS Appl Mater Interfaces 2021; 13:38534-38543. [PMID: 34357757 DOI: 10.1021/acsami.1c09671] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Layer-by-layer fabrication of uniformly oriented thin films over large areas by cost-effective solution-based approaches can open new horizons for the realization of high-performance organic circuits in various applications. In this work, fabrication of a large-area ≈40 cm2 film with uniform orientation is reported for poly(3,3‴-dialkylquaterthiophene) (PQT) using a unidirectional floating film transfer method (UFTM). Orientation characteristics and charge transport anisotropy were analyzed using polarized UV-vis spectral mapping and fabrication of bottom-gated organic field-effect transistors (OFETs) from different regions. Films were found to be highly oriented with an optical dichroic ratio of ca. 15. Orientation characteristics reveal that films were highly oriented along the width of the film, covering >70% of the area, and angle-dependent field-effect mobilities are in good agreement with the orientation of the polymer backbones. These highly oriented films resulted in charge transport anisotropy of 8.9. An array of bottom-gated OFETs fabricated along the length of single large-area (≈15 × 2.5 cm2) thin film demonstrated the average field-effect mobility of 0.0262 cm2/(V s) with a very narrow standard deviation of 12.6%. We also demonstrated that film thickness can be easily tuned from 5.6 to 45 nm by increasing the PQT concentration, and field-effect mobility is highly reproducible even when the film thickness is 10 nm. Microstructural characterization of the thus-prepared large-area thin films revealed the edge-on stacked polymer backbones and surface roughness of <1 nm as probed by grazing incidence X-ray diffraction and atomic force microscopy, respectively. Flexible OFETs with bottom-gate top-contact geometry were also fabricated, having average field-effect mobility of 0.0181 cm2/(V s). There was no considerable change in mobility after bending the flexible devices at different radii.
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Affiliation(s)
- Manish Pandey
- Organic Electronics Laboratory, Division of Materials Science, Nara Institute of Science and Technology, Takayama-cho 8916-5, Ikoma-shi 630-0196 Japan
| | - Heriyanto Syafutra
- Organic Electronics Laboratory, Division of Materials Science, Nara Institute of Science and Technology, Takayama-cho 8916-5, Ikoma-shi 630-0196 Japan
| | - Nikita Kumari
- Organic Electronics Laboratory, Division of Materials Science, Nara Institute of Science and Technology, Takayama-cho 8916-5, Ikoma-shi 630-0196 Japan
- Green Electronics Division, Graduate School of LSSE, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu-shi 8080196 Japan
| | - Shyam S Pandey
- Green Electronics Division, Graduate School of LSSE, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu-shi 8080196 Japan
| | - Ryo Abe
- Organic Electronics Laboratory, Division of Materials Science, Nara Institute of Science and Technology, Takayama-cho 8916-5, Ikoma-shi 630-0196 Japan
| | - Hiroaki Benten
- Organic Electronics Laboratory, Division of Materials Science, Nara Institute of Science and Technology, Takayama-cho 8916-5, Ikoma-shi 630-0196 Japan
| | - Masakazu Nakamura
- Organic Electronics Laboratory, Division of Materials Science, Nara Institute of Science and Technology, Takayama-cho 8916-5, Ikoma-shi 630-0196 Japan
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22
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Son M, Jang J, Kim DC, Lee S, Shin HS, Ham MH, Chee SS. Fabrication of Large-Area Molybdenum Disulfide Device Arrays Using Graphene/Ti Contacts. Molecules 2021; 26:4394. [PMID: 34361548 DOI: 10.3390/molecules26154394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/17/2021] [Accepted: 07/19/2021] [Indexed: 11/16/2022] Open
Abstract
Two-dimensional (2D) molybdenum disulfide (MoS2) is the most mature material in 2D material fields owing to its relatively high mobility and scalability. Such noticeable properties enable it to realize practical electronic and optoelectronic applications. However, contact engineering for large-area MoS2 films has not yet been established, although contact property is directly associated to the device performance. Herein, we introduce graphene-interlayered Ti contacts (graphene/Ti) into large-area MoS2 device arrays using a wet-transfer method. We achieve MoS2 devices with superior electrical and photoelectrical properties using graphene/Ti contacts, with a field-effect mobility of 18.3 cm2/V∙s, on/off current ratio of 3 × 107, responsivity of 850 A/W, and detectivity of 2 × 1012 Jones. This outstanding performance is attributable to a reduction in the Schottky barrier height of the resultant devices, which arises from the decreased work function of graphene induced by the charge transfer from Ti. Our research offers a direction toward large-scale electronic and optoelectronic applications based on 2D materials.
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23
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Ge K, Guo D, Ma X, Xu Z, Hayat A, Li S, Zhai T. Large-Area Biocompatible Random Laser for Wearable Applications. Nanomaterials (Basel) 2021; 11:1809. [PMID: 34361195 PMCID: PMC8308224 DOI: 10.3390/nano11071809] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/09/2021] [Accepted: 07/09/2021] [Indexed: 12/17/2022]
Abstract
Recently, wearable sensor technology has drawn attention to many health-related appliances due to its varied existing optical, electrical, and mechanical applications. Similarly, we have designed a simple and cheap lift-off fabrication technique for the realization of large-area biocompatible random lasers to customize wearable sensors. A large-area random microcavity comprises a matrix element polymethyl methacrylate (PMMA) in which rhodamine B (RhB, which acts as a gain medium) and gold nanorods (Au NRs, which offer plasmonic feedback) are incorporated via a spin-coating technique. In regards to the respective random lasing device residing on a heterogenous film (area > 100 cm2), upon optical excitation, coherent random lasing with a narrow linewidth (~0.4 nm) at a low threshold (~23 μJ/cm2 per pulse) was successfully attained. Here, we maneuvered the mechanical flexibility of the device to modify the spacing between the feedback agents (Au NRs), which tuned the average wavelength from 612.6 to 624 nm under bending while being a recoverable process. Moreover, the flexible film can potentially be used on human skin such as the finger to serve as a motion and relative-humidity sensor. This work demonstrates a designable and simple method to fabricate a large-area biocompatible random laser for wearable sensing.
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Affiliation(s)
- Kun Ge
- Faculty of Science, College of Physics and Optoelectronics, Beijing University of Technology, Beijing 100124, China; (K.G.); (D.G.); (X.M.); (Z.X.); (A.H.)
| | - Dan Guo
- Faculty of Science, College of Physics and Optoelectronics, Beijing University of Technology, Beijing 100124, China; (K.G.); (D.G.); (X.M.); (Z.X.); (A.H.)
| | - Xiaojie Ma
- Faculty of Science, College of Physics and Optoelectronics, Beijing University of Technology, Beijing 100124, China; (K.G.); (D.G.); (X.M.); (Z.X.); (A.H.)
| | - Zhiyang Xu
- Faculty of Science, College of Physics and Optoelectronics, Beijing University of Technology, Beijing 100124, China; (K.G.); (D.G.); (X.M.); (Z.X.); (A.H.)
| | - Anwer Hayat
- Faculty of Science, College of Physics and Optoelectronics, Beijing University of Technology, Beijing 100124, China; (K.G.); (D.G.); (X.M.); (Z.X.); (A.H.)
| | - Songtao Li
- Department of Mathematics & Physics, North China Electric Power University, Baoding 071000, China;
| | - Tianrui Zhai
- Faculty of Science, College of Physics and Optoelectronics, Beijing University of Technology, Beijing 100124, China; (K.G.); (D.G.); (X.M.); (Z.X.); (A.H.)
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24
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Wang L, Wang Y, Dai M, Zhao Q, Wang X. Biologically-Inspired Water-Swelling-Driven Fabrication of Centimeter-Level Metallic Nanogaps. Micromachines (Basel) 2021; 12:mi12070735. [PMID: 34201444 PMCID: PMC8305456 DOI: 10.3390/mi12070735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/15/2021] [Accepted: 06/17/2021] [Indexed: 11/16/2022]
Abstract
Metallic nanogaps have great values in plasmonics devices. However, large-area and low-cost fabrication of such nanogaps is still a huge obstacle, hindering their practical use. In this work, inspired by the cracking behavior of the tomato skin, a water-swelling-driven fabrication method is developed. An Au thinfilm is deposited on a super absorbent polymer (SAP) layer. Once the SAP layer absorbs water and swells, gaps will be created on the surface of the Au thinfilm at a centimeter-scale. Further experimentation indicates that such Au gaps can enhance the Raman scattering signal. In principle, the water-swelling-driven fabrication route can also create gaps on other metallic film and even nonmetallic film in a low-cost way.
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25
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Mariani P, Najafi L, Bianca G, Zappia MI, Gabatel L, Agresti A, Pescetelli S, Di Carlo A, Bellani S, Bonaccorso F. Low-Temperature Graphene-Based Paste for Large-Area Carbon Perovskite Solar Cells. ACS Appl Mater Interfaces 2021; 13:22368-22380. [PMID: 33969983 PMCID: PMC8289184 DOI: 10.1021/acsami.1c02626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 04/26/2021] [Indexed: 05/30/2023]
Abstract
Carbon perovskite solar cells (C-PSCs), using carbon-based counter electrodes (C-CEs), promise to mitigate instability issues while providing solution-processed and low-cost device configurations. In this work, we report the fabrication and characterization of efficient paintable C-PSCs obtained by depositing a low-temperature-processed graphene-based carbon paste atop prototypical mesoscopic and planar n-i-p structures. Small-area (0.09 cm2) mesoscopic C-PSCs reach a power conversion efficiency (PCE) of 15.81% while showing an improved thermal stability under the ISOS-D-2 protocol compared to the reference devices based on Au CEs. The proposed graphene-based C-CEs are applied to large-area (1 cm2) mesoscopic devices and low-temperature-processed planar n-i-p devices, reaching PCEs of 13.85 and 14.06%, respectively. To the best of our knowledge, these PCE values are among the highest reported for large-area C-PSCs in the absence of back-contact metallization or additional stacked conductive components or a thermally evaporated barrier layer between the charge-transporting layer and the C-CE (strategies commonly used for the record-high efficiency C-PSCs). In addition, we report a proof-of-concept of metallized miniwafer-like area C-PSCs (substrate area = 6.76 cm2, aperture area = 4.00 cm2), reaching a PCE on active area of 13.86% and a record-high PCE on aperture area of 12.10%, proving the metallization compatibility with our C-PSCs. Monolithic wafer-like area C-PSCs can be feasible all-solution-processed configurations, more reliable than prototypical perovskite solar (mini)modules based on the serial connection of subcells, since they mitigate hysteresis-induced performance losses and hot-spot-induced irreversible material damage caused by reverse biases.
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Affiliation(s)
- Paolo Mariani
- CHOSE—Centre
for Hybird and Organic Solar Energy, University
of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
| | - Leyla Najafi
- BeDimensional
S.p.A., Via Lungotorrente
Secca 3D, 16163 Genova, Italy
| | - Gabriele Bianca
- Graphene
Labs, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy
| | - Marilena Isabella Zappia
- BeDimensional
S.p.A., Via Lungotorrente
Secca 3D, 16163 Genova, Italy
- Department
of Physics, University of Calabria, Via P. Bucci cubo 31/C, 87036 Rende, Cosenza, Italy
| | - Luca Gabatel
- BeDimensional
S.p.A., Via Lungotorrente
Secca 3D, 16163 Genova, Italy
| | - Antonio Agresti
- CHOSE—Centre
for Hybird and Organic Solar Energy, University
of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
| | - Sara Pescetelli
- CHOSE—Centre
for Hybird and Organic Solar Energy, University
of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
| | - Aldo Di Carlo
- CHOSE—Centre
for Hybird and Organic Solar Energy, University
of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
- ISM-CNR,
Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, 00133 Rome, Italy
| | | | - Francesco Bonaccorso
- BeDimensional
S.p.A., Via Lungotorrente
Secca 3D, 16163 Genova, Italy
- Graphene
Labs, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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26
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Moschetto S, Bolognesi M, Prescimone F, Brucale M, Mezzi A, Ortolani L, Caporali M, Pingue P, Serrano-Ruiz M, Pisignano D, Peruzzini M, Persano L, Toffanin S. Large-Area Oxidized Phosphorene Nanoflakes Obtained by Electrospray for Energy-Harvesting Applications. ACS Appl Nano Mater 2021; 4:3476-3485. [PMID: 35874274 PMCID: PMC9301623 DOI: 10.1021/acsanm.0c03465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Bidimensional (2D) materials are nowadays being developed as outstanding candidates for electronic and optoelectronic components and devices. Targeted applications include sensing, energy conversion, and storage. Phosphorene is one of the most promising systems in this context, but its high reactivity under atmospheric conditions and its small-area/lab-scale deposition techniques have hampered the introduction of this material in real-world applications so far. However, phosphorene oxides in the form of low-dimensional structures (2D PO x ) should behave as an electroresponsive material according to recent theoretical studies. In the present work, we introduce electrospraying for the deposition of stoichiometric and large-area 2D PO x nanoflakes starting from a suspension of liquid-phase-exfoliated phosphorene. We obtained 2D PO x nanostructures with a mean surface area two orders of magnitude larger than phosphorene structures obtained with standard mechanical and liquid exfoliation techniques. X-ray spectroscopy and high-resolution electron microscopy confirmed the P2O5-like crystallographic structure of the electrosprayed flakes. Finally, we experimentally demonstrated for the first time the electromechanical responsivity of the 2D P2O5 nanoflakes, through piezoresponse force microscopy (PFM). This work sheds light on the possible implementation of phosphorus oxide-based 2D nanomaterials in the value chain of fabrication and engineering of devices, which might be easily scaled up for energy-harvesting/conversion applications.
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Affiliation(s)
- Salvatore Moschetto
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)—Consiglio
Nazionale delle Ricerche (CNR), Via P. Gobetti 101, 40129 Bologna, Italy
| | - Margherita Bolognesi
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)—Consiglio
Nazionale delle Ricerche (CNR), Via P. Gobetti 101, 40129 Bologna, Italy
| | - Federico Prescimone
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)—Consiglio
Nazionale delle Ricerche (CNR), Via P. Gobetti 101, 40129 Bologna, Italy
| | - Marco Brucale
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)—Consiglio
Nazionale delle Ricerche (CNR), Via P. Gobetti 101, 40129 Bologna, Italy
| | - Alessio Mezzi
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)—Consiglio
Nazionale delle Ricerche (CNR), P.O.
Box 10, Monterotondo Scalo, I-00016 Rome, Italy
| | - Luca Ortolani
- Istituto
per la microelettronica e microsistemi (IMM)—Consiglio Nazionale
delle Ricerche (CNR), Via P. Gobetti 101, 40129 Bologna, Italy
| | - Maria Caporali
- Istituto
di Chimica dei Composti Organometallici (ICCOM)—Consiglio Nazionale
delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy
| | - Pasqualantonio Pingue
- Laboratorio
NEST, Scuola Normale Superiore and Istituto
Nanoscienze—Consiglio Nazionale delle Ricerche (CNR), Piazza San Silvestro 12, I-56127 Pisa, Italy
| | - Manuel Serrano-Ruiz
- Istituto
di Chimica dei Composti Organometallici (ICCOM)—Consiglio Nazionale
delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy
| | - Dario Pisignano
- Laboratorio
NEST, Scuola Normale Superiore and Istituto
Nanoscienze—Consiglio Nazionale delle Ricerche (CNR), Piazza San Silvestro 12, I-56127 Pisa, Italy
- Dipartimento
di Fisica, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
| | - Maurizio Peruzzini
- Istituto
di Chimica dei Composti Organometallici (ICCOM)—Consiglio Nazionale
delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy
| | - Luana Persano
- Laboratorio
NEST, Scuola Normale Superiore and Istituto
Nanoscienze—Consiglio Nazionale delle Ricerche (CNR), Piazza San Silvestro 12, I-56127 Pisa, Italy
| | - Stefano Toffanin
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)—Consiglio
Nazionale delle Ricerche (CNR), Via P. Gobetti 101, 40129 Bologna, Italy
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27
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Kim M, Seo J, Kim J, Moon JS, Lee J, Kim JH, Kang J, Park H. High-Crystalline Monolayer Transition Metal Dichalcogenides Films for Wafer-Scale Electronics. ACS Nano 2021; 15:3038-3046. [PMID: 33512141 DOI: 10.1021/acsnano.0c09430] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chemical vapor deposition (CVD) using liquid-phase precursors has emerged as a viable technique for synthesizing uniform large-area transition metal dichalcogenide (TMD) thin films. However, the liquid-phase precursor-assisted growth process typically suffers from small-sized grains and unreacted transition metal precursor remainders, resulting in lower-quality TMDs. Moreover, synthesizing large-area TMD films with a monolayer thickness is also quite challenging. Herein, we successfully synthesized high-quality large-area monolayer molybdenum diselenide (MoSe2) with good uniformity via promoter-assisted liquid-phase CVD process using the transition metal-containing precursor homogeneously modified with an alkali metal halide. The formation of a reactive transition metal oxyhalide and reduction of the energy barrier of chalcogenization by the alkali metal promoted the growth rate of the TMDs along the in-plane direction, enabling the full coverage of the monolayer MoSe2 film with negligible few-layer regions. Note that the fully selenized monolayer MoSe2 with high crystallinity exhibited superior electrical transport characteristics compared with those reported in previous works using liquid-phase precursors. We further synthesized various other monolayer TMD films, including molybdenum disulfide, tungsten disulfide, and tungsten diselenide, to demonstrate the broad applicability of the proposed approach.
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Affiliation(s)
- Minseong Kim
- Department of Materials Science and Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jihyung Seo
- Department of Materials Science and Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jihyun Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Jong Sung Moon
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Junghyun Lee
- Department of Materials Science and Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Je-Hyung Kim
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Joohoon Kang
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Hyesung Park
- Department of Materials Science and Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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28
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Li W, Xu Y, Peng J, Li R, Song J, Huang H, Cui L, Lin Q. Evaporated Perovskite Thick Junctions for X-Ray Detection. ACS Appl Mater Interfaces 2021; 13:2971-2978. [PMID: 33399446 DOI: 10.1021/acsami.0c20973] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
X-ray detection is widely utilized in our daily life, such as in medical diagnosis, security checking, and environmental monitoring. However, most of the commercial X-ray detectors are based on inorganic semiconductors, e.g., Si, CdTe, and Ge, which require complex and costly fabrication processes. Metal halide perovskites have recently emerged as a set of promising candidates for ionizing radiation detection, owing to the high attenuation coefficient, long carrier lifetime, and excellent charge transport properties. Perovskite single crystals have been successfully implemented in X-ray detection, but the fragile single crystals limit the device fabrication and the integration with a read-out circuit. In addition, it is hard to reach inch-size single crystals for real application. Flexible devices based on perovskite films or composite films have also been reported, but either the thickness or charge transport properties are limited by the solution processes. In this work, we introduced thermal co-evaporation to deposit highly efficient formamidinium lead iodide perovskite films. Considering the trade-off between X-ray absorption and charge transport, we optimized the active layer thickness and achieved large-area and flexible X-ray detectors with state-of-the-art device performance, including extremely low dark current and noise, fast response, and high sensitivity of 142.1 μC Gyair-1 cm-2.
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Affiliation(s)
- Wei Li
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China
| | - Yalun Xu
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China
| | - Jiali Peng
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China
| | - Ruiming Li
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China
| | - Jiannan Song
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China
| | - Huihuang Huang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China
| | - Lihao Cui
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China
| | - Qianqian Lin
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, P. R. China
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29
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Zhao Y, Deng Q, Guo R, Wu Z, Li Y, Duan Y, Shen Y, Zhang W, Shao G. Sputtered Ga-Doped SnO x Electron Transport Layer for Large-Area All-Inorganic Perovskite Solar Cells. ACS Appl Mater Interfaces 2020; 12:54904-54915. [PMID: 33251793 DOI: 10.1021/acsami.0c19540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The scalability processing of all functional layers in perovskite solar cells (PSCs) is one of the critical challenges in the commercialization of perovskite photovoltaic technology. In response to this issue, a large-area and high-quality gallium-doped tin oxide (Ga-SnOx) thin film is deposited by direct current magnetron sputtering and applied in CsPbBr3 all-inorganic PSCs as an electron transport layer (ETL). It is found that oxygen defects of SnOx can be remarkably offset by regulating oxygen flux and acceptor-like Ga doping level, resulting in higher carrier mobility and suitable energy level alignment, which is beneficial in accelerating electron extraction and suppressing charge recombination at the perovskite/ETL interface. At the optimal O2 flux (12 sccm) and Ga doping level (5%), the device based on sputtered Ga-SnOx ETL without any interface modification shows a power conversion efficiency (PCE) of 8.13%, which is significantly higher than that of undoped SnOx prepared by sputtering or spin coating. Furthermore, a PCE of 5.98% for a device with an active area of 1 cm2 is obtained, demonstrating great potential in fabricating efficient and stable large-area PSCs.
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Affiliation(s)
- Yan Zhao
- State Center for International Cooperation on Designer Low-carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Quanrong Deng
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, China
| | - Ruxin Guo
- State Center for International Cooperation on Designer Low-carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
- Zhengzhou Materials Genome Institute (ZMGI), Building 2, Zhongyuanzhigu, Xingyang, Zhengzhou 450100, China
| | - Zhiheng Wu
- State Center for International Cooperation on Designer Low-carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
- Zhengzhou Materials Genome Institute (ZMGI), Building 2, Zhongyuanzhigu, Xingyang, Zhengzhou 450100, China
| | - Yukun Li
- State Center for International Cooperation on Designer Low-carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yanyan Duan
- State Center for International Cooperation on Designer Low-carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yonglong Shen
- State Center for International Cooperation on Designer Low-carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
- Zhengzhou Materials Genome Institute (ZMGI), Building 2, Zhongyuanzhigu, Xingyang, Zhengzhou 450100, China
| | - Wei Zhang
- Advanced Technology Institute (ATI), University of Surrey, Guildford, Surrey GU2 7XH, U.K
| | - Guosheng Shao
- State Center for International Cooperation on Designer Low-carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
- Zhengzhou Materials Genome Institute (ZMGI), Building 2, Zhongyuanzhigu, Xingyang, Zhengzhou 450100, China
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30
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Jeong S, Park B, Hong S, Kim S, Kim J, Kwon S, Lee JH, Lee MS, Park JC, Kang H, Lee K. Large-Area Nonfullerene Organic Solar Cell Modules Fabricated by a Temperature-Independent Printing Method. ACS Appl Mater Interfaces 2020; 12:41877-41885. [PMID: 32840103 DOI: 10.1021/acsami.0c12190] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Despite recent breakthroughs in the fabrication of spin-coated small-area devices (≤0.1 cm2) with power conversion efficiencies (PCEs) of more than 17%, printed large-area organic solar cells (OSCs) are significantly less efficient because of the intrinsic differences between the coating dynamics of the two types of OSCs. The PCEs of printed large-area (∼100 cm2) OSCs have typically been decreased compared with those of small-area spin-coated devices. In this work, an efficient low-temperature printing method to fabricate high-efficiency large-area nonfullerene-based OSC modules is successfully demonstrated. A systematic study of the relationship between the concentration of the photoactive solution and the resulting film properties reveals that the large-area modules (85 cm2) produced in this work deliver excellent performance, yielding PCEs of up to 8.18% with a geometric fill factor of 85%. These novel OSC modules are ∼87% as efficient as small-area printed single cells (cell PCE ∼9.43% with 1 cm2).
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Affiliation(s)
- Soyeong Jeong
- Heeger Center for Advanced Materials (HCAM) & Research Institute for Solar and Sustainable Energies (RISE), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Byoungwook Park
- Heeger Center for Advanced Materials (HCAM) & Research Institute for Solar and Sustainable Energies (RISE), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Soonil Hong
- Heeger Center for Advanced Materials (HCAM) & Research Institute for Solar and Sustainable Energies (RISE), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Seok Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Jehan Kim
- Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Sooncheol Kwon
- Heeger Center for Advanced Materials (HCAM) & Research Institute for Solar and Sustainable Energies (RISE), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Jong-Hoon Lee
- Heeger Center for Advanced Materials (HCAM) & Research Institute for Solar and Sustainable Energies (RISE), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | | | | | - Hongkyu Kang
- Heeger Center for Advanced Materials (HCAM) & Research Institute for Solar and Sustainable Energies (RISE), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Kwanghee Lee
- Heeger Center for Advanced Materials (HCAM) & Research Institute for Solar and Sustainable Energies (RISE), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
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31
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Huang SH, Tian KY, Huang HC, Li CF, Chu WC, Lee KM, Huang YC, Su WF. Controlling the Morphology and Interface of the Perovskite Layer for Scalable High-Efficiency Solar Cells Fabricated Using Green Solvents and Blade Coating in an Ambient Environment. ACS Appl Mater Interfaces 2020; 12:26041-26049. [PMID: 32434322 DOI: 10.1021/acsami.0c06211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Low-cost and solution-processed perovskite solar cells have shown great potential for scaling-up mass production. In comparison with the spin coating process for fabricating devices with small areas, the blade coating process is a facile technique for preparing uniform films with large areas. High-efficiency perovskite solar cells have been reported using blade coating, but they were fabricated using the toxic solvent N,N-dimethylformide (DMF) in nitrogen. In this work, we present highly efficient blade-coated perovskite solar cells prepared using a green solvent mixture of γ-butyrolactone (GBL) and dimethyl sulfoxide (DMSO) in an ambient environment. By carefully controlling the interface, morphology, and crystallinity of perovskite films through composition variations and additives, a high power conversion efficiency of 17.02% is achieved in air with 42.4% reduction of standard deviation in performance. The findings in this work resolve the issues of scalability and solvent toxicity; thus, the mass production of perovskite solar cells becomes feasible.
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Affiliation(s)
- Shih-Han Huang
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Kuo-Yu Tian
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Hung-Che Huang
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Chia-Feng Li
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
| | - Wei-Cheng Chu
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan
| | - Kun-Mu Lee
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan
- Division of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Taoyuan 33305, Taiwan
| | - Yu-Ching Huang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
| | - Wei-Fang Su
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
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32
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Zhang Y, Tu Y, Yang X, Su R, Yang W, Yu M, Wang Y, Huang W, Gong Q, Zhu R. Green Solution-Bathing Process for Efficient Large-Area Planar Perovskite Solar Cells. ACS Appl Mater Interfaces 2020; 12:24905-24912. [PMID: 32365291 DOI: 10.1021/acsami.0c06412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Perovskite solar cells (PSCs) toward practical application relies on high efficiency, long lifetime, low toxicity, and device up-scaling. To realize large-area PSCs, a green solution-bathing strategy is delivered to prepare high-performance PSCs. By utilizing 2-pentanol as a green solvent and formamidinium chloride (FACl) as a solute in the green solution-bathing process, perovskite films with enlarged grain sizes, improved crystallinity, and alleviated defect state density were obtained, resulting in the enhancement in the power conversion efficiency of PSCs. Coupled with 2-pentanol and FACl, both a champion efficiency of 21.03% for small cells (0.103 cm2) and an efficiency of over 18% for large size (1.00 cm2) were obtained based on the GSB process, which can outperform its counterpart made via the commonly used antisolvent-dropping method. In addition, a large perovskite film (5 cm × 5 cm) with obvious mirror effect was successfully prepared. Our innovative approach paves the way to promote device up-scaling of PSCs via an environmentally friendly technique.
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Affiliation(s)
- Yifei Zhang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
| | - Yongguang Tu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Northwestern Polytechnical University, Xi'an 710072, China
| | - Xiaoyu Yang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
| | - Rui Su
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
| | - Wenqiang Yang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
| | - Maotao Yu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
| | - Yi Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Northwestern Polytechnical University, Xi'an 710072, China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Northwestern Polytechnical University, Xi'an 710072, China
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Qihuang Gong
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
| | - Rui Zhu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
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33
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Yu S, Cao X, Niu W, Wu S, Ma W, Zhang S. Large-Area and Water Rewriteable Photonic Crystal Films Obtained by the Thermal Assisted Air-Liquid Interface Self Assembly. ACS Appl Mater Interfaces 2019; 11:22777-22785. [PMID: 31194499 DOI: 10.1021/acsami.9b06470] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Compared with traditional paper, water rewritable photonic crystal (PC) paper is an environmentally friendly and low resource-consuming material for information storage. Although, recently reported PC papers have high-quality structure color showing promising prospect, the paper size, that is within several centimeters, still limits turning it from potential to reality. Here, we present a new water rewritable PC film as large as the A4 size (210 × 300 mm2) with a high-quality structure color. The material is prepared by thermal assisted self-assembly on the air-liquid interface. To fix such a large-area self-assembled PC film, we partially deform and coalesce the self-assembled nanoparticles, which have low glass transition temperature. This process causes the film to be transparent and structural colorless but still keeps the inner 3D-ordered structure. Then, utilizing the hydrophilic nature of the assembled block, the film can be switched to a structural color state by touching water. Diverse brilliant structural colors appear with different assembled particle (poly(butyl methacrylate- co-methylmethacrylate- co-butyl acrylate- co-diacetone acrylamide) named as PBMBD) sizes. The transparency-structural color transition can be performed multiple times reversibly in all or specific regions of the film. It provides a new solution for future applications of rewriteable PC paper.
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Affiliation(s)
- Shuzhen Yu
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Rd. , Dalian 116024 , China
| | - Xu Cao
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Rd. , Dalian 116024 , China
| | - Wenbin Niu
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Rd. , Dalian 116024 , China
| | - Suli Wu
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Rd. , Dalian 116024 , China
| | - Wei Ma
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Rd. , Dalian 116024 , China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Rd. , Dalian 116024 , China
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Ge Y, Wang X, Zhao T. Preparation of Flexible Substrate Electrode for Supercapacitor With High-Performance MnO 2 Stalagmite Nanorod Arrays. Front Chem 2019; 7:338. [PMID: 31139621 PMCID: PMC6527770 DOI: 10.3389/fchem.2019.00338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 04/25/2019] [Indexed: 11/29/2022] Open
Abstract
A large-area MnO2 stalagmite nanorod arrays (SNAs) growing vertically on flexible substrates were successfully fabricated by an easy heat-electrodeposition method. The large specific capacitance (646.4 F g−1 at 500 mA g−1) and excellent rate capability (42.3% retention with 40 times of increase) indicate that the prepared MnO2 SNAs flexible electrode has outstanding electrochemical performance. Furthermore, after 5,000 repetitions of CV tests, the overall specific capacitance could retain ~101.2% compared with the initial value meant a long cycling life. These outstanding properties could be ascribed to the effective conductive transport path between Ni substrate and MnO2 nanorods, and owing to the stalagmite like structure of MnO2 nanorods, the exposed sufficient active sites are beneficial to the electrolyte infiltration.
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Affiliation(s)
- Yuanyu Ge
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - Xianfeng Wang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - Tao Zhao
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
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35
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Shi B, Zhou D, Fang S, Djebbi K, Feng S, Zhao H, Tlili C, Wang D. Facile and Controllable Synthesis of Large-Area Monolayer WS₂ Flakes Based on WO₃ Precursor Drop-Casted Substrates by Chemical Vapor Deposition. Nanomaterials (Basel) 2019; 9:nano9040578. [PMID: 30970578 PMCID: PMC6523556 DOI: 10.3390/nano9040578] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/29/2019] [Accepted: 04/02/2019] [Indexed: 11/24/2022]
Abstract
Monolayer WS2 (Tungsten Disulfide) with a direct-energy gap and excellent photoluminescence quantum yield at room temperature shows potential applications in optoelectronics. However, controllable synthesis of large-area monolayer WS2 is still challenging because of the difficulty in controlling the interrelated growth parameters. Herein, we report a facile and controllable method for synthesis of large-area monolayer WS2 flakes by direct sulfurization of powdered WO3 (Tungsten Trioxide) drop-casted on SiO2/Si substrates in a one-end sealed quartz tube. The samples were thoroughly characterized by an optical microscope, atomic force microscope, transmission electron microscope, fluorescence microscope, photoluminescence spectrometer, and Raman spectrometer. The obtained results indicate that large triangular monolayer WS2 flakes with an edge length up to 250 to 370 μm and homogeneous crystallinity were readily synthesized within 5 min of growth. We demonstrate that the as-grown monolayer WS2 flakes show distinctly size-dependent fluorescence emission, which is mainly attributed to the heterogeneous release of intrinsic tensile strain after growth.
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Affiliation(s)
- Biao Shi
- Chongqing Key Lab of Multi-Scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Daming Zhou
- Chongqing Key Lab of Multi-Scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Shaoxi Fang
- Chongqing Key Lab of Multi-Scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Khouloud Djebbi
- Chongqing Key Lab of Multi-Scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Shuanglong Feng
- Chongqing Key Lab of Multi-Scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Hongquan Zhao
- Chongqing Key Lab of Multi-Scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Chaker Tlili
- Chongqing Key Lab of Multi-Scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Deqiang Wang
- Chongqing Key Lab of Multi-Scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
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36
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Ju Y, Park SY, Yeom KM, Noh JH, Jung HS. Single-Solution Bar-Coated Halide Perovskite Films via Mediating Crystallization for Scalable Solar Cell Fabrication. ACS Appl Mater Interfaces 2019; 11:11537-11544. [PMID: 30838847 DOI: 10.1021/acsami.9b02125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The development of a scalable fabrication technology for halide perovskite solar cells (HPSCs) is an important challenge to realize their commercialization. In particular, continuous solution-coating processes are needed to produce scalable large-area HPSCs. Herein, we report a single-solution bar-coating process that introduces an intermediate phase stage for large-area CH3NH3PbI3 films with full coverage and smooth morphology using N-cyclohexyl-2-pyrrolidone (CHP) as a mediator. In contrast to the conventional double-solution coating methods that use antisolvent treatments, the preformed uniform intermediate phase in the single-solution bar-coating process enables the formation of highly uniform perovskite films with a 10 cm × 10 cm area even without antisolvent treatment. The HPSCs fabricated using the resultant single-solution bar-coated perovskite films exhibit superior photovoltaic performance, narrower distribution, and smaller loss with a larger active area than devices fabricated using single-solution spin-coated perovskite films.
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Affiliation(s)
- Yeonkyeong Ju
- School of Advanced Materials Science & Engineering , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | - So Yeon Park
- School of Advanced Materials Science & Engineering , Sungkyunkwan University , Suwon 16419 , Republic of Korea
| | | | | | - Hyun Suk Jung
- School of Advanced Materials Science & Engineering , Sungkyunkwan University , Suwon 16419 , Republic of Korea
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37
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Park M, Cho W, Lee G, Hong SC, Kim MC, Yoon J, Ahn N, Choi M. Highly Reproducible Large-Area Perovskite Solar Cell Fabrication via Continuous Megasonic Spray Coating of CH 3 NH 3 PbI 3. Small 2019; 15:e1804005. [PMID: 30609284 DOI: 10.1002/smll.201804005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/14/2018] [Indexed: 05/22/2023]
Abstract
A simple, low-cost, large area, and continuous scalable coating method is proposed for the fabrication of hybrid organic-inorganic perovskite solar cells. A megasonic spray-coating method utilizing a 1.7 MHz megasonic nebulizer that could fabricate reproducible large-area planar efficient perovskite films is developed. The coating method fabricates uniform large-area perovskite film with large-sized grain since smaller and narrower sized mist droplets than those generated by existing ultrasonic spray methods could be generated by megasonic spraying. The volume flow rate of the CH3 NH3 PbI3 precursor solution and the reaction temperature are controlled, to obtain a high quality perovskite active layer. The devices reach a maximum efficiency of 16.9%, with an average efficiency of 16.4% from 21 samples. The applicability of megasonic spray coating to the fabrication of large-area solar cells (1 cm2 ), with a power conversion efficiency of 14.2%, is also demonstrated. This is a record high efficiency for large-area perovskite solar cells fabricated by continuous spray coating.
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Affiliation(s)
- Mincheol Park
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, 08826, South Korea
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 08826, South Korea
| | - Woohyung Cho
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, 08826, South Korea
| | - Gunhee Lee
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, 08826, South Korea
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 08826, South Korea
| | - Seung Chan Hong
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, 08826, South Korea
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 08826, South Korea
| | - Min-Cheol Kim
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, 08826, South Korea
| | - Jungjin Yoon
- Photo-Electronic Hybrids Research Center, National Agenda Research Division, Korea Institute of Science and Technology, Seoul, 02792, South Korea
| | - Namyoung Ahn
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, 08826, South Korea
| | - Mansoo Choi
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, 08826, South Korea
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 08826, South Korea
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38
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Han J, Yin X, Zhou Y, Nan H, Gu Y, Tai M, Li J, Lin H. Perovskite/Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] Bulk Heterojunction for High-Efficient Carbon-Based Large-Area Solar Cells by Gradient Engineering. ACS Appl Mater Interfaces 2018; 10:42328-42334. [PMID: 30457316 DOI: 10.1021/acsami.8b15399] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The performance of low-temperature carbon-based perovskite solar cells (C-PSCs) with high commercial potential was hampered by the inferior interface between the absorber and carbon electrode. In this work, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) was dissolved in an antisolvent for spin-coating perovskite (CH3NH3PbI3, MAPI) films, which was applied to modify both the MAPI films and the interface between the MAPI layer and carbon electrode by gradient engineering. Finally, the C-PSCs based on MAPI-PTAA gradient bulk heterojunction films achieved a power conversion efficiency of 13.0% with an active area of 1 cm2, 26% higher than that of pristine MAPI cells, because of the passivated trap states, accelerated hole extraction, and improved crystalline properties in absorber films.
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Affiliation(s)
- Jianhua Han
- State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering , Tsinghua University , Beijing 10084 , China
| | - Xuewen Yin
- State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering , Tsinghua University , Beijing 10084 , China
| | - Yu Zhou
- State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering , Tsinghua University , Beijing 10084 , China
| | - Hui Nan
- State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering , Tsinghua University , Beijing 10084 , China
| | - Youchen Gu
- State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering , Tsinghua University , Beijing 10084 , China
| | - Meiqian Tai
- State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering , Tsinghua University , Beijing 10084 , China
| | - Jianbao Li
- State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering , Tsinghua University , Beijing 10084 , China
- State Key Laboratory of Marine Resource Utilization in South China Sea , Hainan University , Haikou 570228 , China
| | - Hong Lin
- State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering , Tsinghua University , Beijing 10084 , China
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Chou LH, Wang XF, Osaka I, Wu CG, Liu CL. Scalable Ultrasonic Spray-Processing Technique for Manufacturing Large-Area CH 3NH 3PbI 3 Perovskite Solar Cells. ACS Appl Mater Interfaces 2018; 10:38042-38050. [PMID: 30360087 DOI: 10.1021/acsami.8b12463] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Organic-inorganic hybrid perovskite solar cells are on the brink of a breakthrough in photovoltaic technology. Scale-up and large-area processing have become the focal points that must be resolved before commercialization. In this study, the scalable ultrasonic spray deposition method for high-throughput coating of the perovskite photoactive layer with a large active area of up to 3 cm2 is implemented by precisely controlling the concentration of the precursor solution and spray passes. CH3NH3PbI3 films with large crystallites and a suitable thickness of ∼350 nm are facilely developed through one-step direct ultrasonic spraying. Less hysteresis and highly reproducible power conversion efficiencies (PCEs) of up to 12.30% (11.43 ± 0.43% on average for 20 devices) are achieved by an optimized single-junction device with an active area of 1 cm2, along with good ambient stability. The device retained ∼80 and ∼65% of the initial PCE after 60 and 105 days in ambient, respectively. The ultrasonic spray-coated perovskite solar cells can be further scaled to larger areas of 2 and 3 cm2 and exhibit PCEs of 10.18 and 7.01%, respectively. The reliable scale-up process for manufacturing the atmospheric wet-coated perovskite film is available in cost-effective and easily operated bench-top variants to bridge the interconnection between applied research and industry.
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Affiliation(s)
- Li-Hui Chou
- Department of Applied Chemistry, Graduate School of Engineering , Hiroshima University , Higashi-Hiroshima , Hiroshima 739-8527 , Japan
| | - Xiao-Feng Wang
- Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics , Jilin University , Changchun 130012 , China
| | - Itaru Osaka
- Department of Applied Chemistry, Graduate School of Engineering , Hiroshima University , Higashi-Hiroshima , Hiroshima 739-8527 , Japan
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40
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Zeng Q, Xu Z, Zheng C, Liu Y, Chen W, Guo T, Li F, Xiang C, Yang Y, Cao W, Xie X, Yan X, Qian L, Holloway PH. Improving Charge Injection via a Blade-Coating Molybdenum Oxide Layer: Toward High-Performance Large-Area Quantum-Dot Light-Emitting Diodes. ACS Appl Mater Interfaces 2018; 10:8258-8264. [PMID: 29424226 DOI: 10.1021/acsami.7b19333] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A solution-processed molybdenum oxide (MoO x) as the hole injection layer (HIL) by doctor-blade coating was developed to improve the efficiency and lifetime of red-emitting quantum-dot light-emitting diodes (QD-LEDs). It has been demonstrated that by adding isopropyl alcohol into the MoO x precursor during the doctor-blade coating process, the morphology, composition, and the surface electronic structure of the MoO x HIL could be tailored. A high-quality MoO x film with optimized charge injection was obtained, based on which all-solution-processed highly efficient red-emitting QD-LEDs were realized by using a low-cost doctor-blade coating technique under ambient conditions. The red QD-LEDs exhibited the maximum current efficiency and external quantum efficiency of 16 cd/A and 15.1%, respectively. Moreover, the lifetime of red devices initializing at 100 cd/m2 was 3236 h under ambient conditions, which is about twice as long as those with a conventional poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) HIL. Large-area QD-LEDs with 4 in. emitting areas were fabricated with blade coating as well, which exhibit a high efficiency of 12.1 cd/A for red emissions. Our work paves a new way to the realization of efficient large-area QD-LEDs, and the processing and findings from this work can be expanded into next-generation lighting and flat-panel displays.
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Affiliation(s)
| | | | | | - Yang Liu
- Fuzhou University , Fuzhou 350116 , China
| | - Wei Chen
- Fuzhou University , Fuzhou 350116 , China
| | | | - Fushan Li
- Fuzhou University , Fuzhou 350116 , China
| | - Chaoyu Xiang
- TCL Corporate Research , Shenzhen 518052 , China
| | - Yixing Yang
- TCL Corporate Research , Shenzhen 518052 , China
| | - Weiran Cao
- TCL Corporate Research , Shenzhen 518052 , China
| | - Xiangwei Xie
- TCL Corporate Research , Shenzhen 518052 , China
| | - Xiaolin Yan
- TCL Corporate Research , Shenzhen 518052 , China
| | - Lei Qian
- TCL Corporate Research , Shenzhen 518052 , China
| | - Paul H Holloway
- Department of Materials Science and Engineering , University of Florida , Gainesville 32611 , United States
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Liu M, Pu X, Jiang C, Liu T, Huang X, Chen L, Du C, Sun J, Hu W, Wang ZL. Large-Area All-Textile Pressure Sensors for Monitoring Human Motion and Physiological Signals. Adv Mater 2017; 29. [PMID: 28949422 DOI: 10.1002/adma.201703700] [Citation(s) in RCA: 210] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/04/2017] [Indexed: 05/05/2023]
Abstract
Wearable pressure sensors, which can perceive and respond to environmental stimuli, are essential components of smart textiles. Here, large-area all-textile-based pressure-sensor arrays are successfully realized on common fabric substrates. The textile sensor unit achieves high sensitivity (14.4 kPa-1 ), low detection limit (2 Pa), fast response (≈24 ms), low power consumption (<6 µW), and mechanical stability under harsh deformations. Thanks to these merits, the textile sensor is demonstrated to be able to recognize finger movement, hand gestures, acoustic vibrations, and real-time pulse wave. Furthermore, large-area sensor arrays are successfully fabricated on one textile substrate to spatially map tactile stimuli and can be directly incorporated into a fabric garment for stylish designs without sacrifice of comfort, suggesting great potential in smart textiles or wearable electronics.
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Affiliation(s)
- Mengmeng Liu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
| | - Xiong Pu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
| | - Chunyan Jiang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
| | - Ting Liu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
| | - Xin Huang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
| | - Libo Chen
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
| | - Chunhua Du
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
| | - Jiangman Sun
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
| | - Weiguo Hu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, China
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
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42
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Song J, Gao M, Zhao C, Lu Y, Huang L, Liu X, Carmalt CJ, Deng X, Parkin IP. Large-Area Fabrication of Droplet Pancake Bouncing Surface and Control of Bouncing State. ACS Nano 2017; 11:9259-9267. [PMID: 28841277 DOI: 10.1021/acsnano.7b04494] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Superhydrophobic pillar arrays, which can generate the droplet pancake bouncing phenomenon with reduced liquid-solid contact time, have huge application prospects in anti-icing of aircraft wings from freezing rain. However, the previously reported pillar arrays, suitable for obtaining pancake bouncing, have a diameter ≤100 μm and height-diameter ratio >10, which are difficult to fabricate over a large area. Here, we have systematically studied the influence of the dimension of the superhydrophobic pillar arrays on the bouncing dynamics of water droplets. We show that the typical pancake bouncing with 57.8% reduction in contact time with the surface was observed on the superhydrophobic pillar arrays with 1.05 mm diameter, 0.8 mm height, and 0.25 mm space. Such pillar arrays with millimeter diameter and <1 height-diameter ratio can be easily fabricated over large areas. Further, a simple replication-spraying method was developed for the large-area fabrication of the superhydrophobic pillar arrays to induce pancake bouncing. No sacrificial layer was needed to reduce the adhesion in the replication processes. Since the bouncing dynamics were rather sensitive to the space between the pillars, a method to control the contact time, bouncing shape, horizontal bouncing direction, and reversible switch between pancake bouncing and conventional bouncing was realized by adjusting the inclination angle of the shape memory polymer pillars.
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Affiliation(s)
| | | | | | - Yao Lu
- Nanoengineered Systems Laboratory, UCL Mechanical Engineering, University College London , London WC1E 7JE, U.K
| | | | | | - Claire J Carmalt
- Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, U.K
| | - Xu Deng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China , Chengdu 610054, P. R. China
| | - Ivan P Parkin
- Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, U.K
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Xie S, Wu J, Tang B, Zhou G, Jin M, Shui L. Large-Area and High-Throughput PDMS Microfluidic Chip Fabrication Assisted by Vacuum Airbag Laminator. Micromachines (Basel) 2017; 8:E218. [PMID: 30400409 PMCID: PMC6190007 DOI: 10.3390/mi8070218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 06/23/2017] [Accepted: 06/29/2017] [Indexed: 01/13/2023]
Abstract
One of the key fabrication steps of large-area microfluidic devices is the flexible-to-hard sheet alignment and pre-bonding. In this work, the vacuum airbag laminator (VAL) which is commonly used for liquid crystal display (LCD) production has been applied for large-area microfluidic device fabrication. A straightforward, efficient, and low-cost method has been achieved for 400 × 500 mm² microfluidic device fabrication. VAL provides the advantages of precise alignment and lamination without bubbles. Thermal treatment has been applied to achieve strong PDMS⁻glass and PDMS⁻PDMS bonding with maximum breakup pressure of 739 kPa, which is comparable to interference-assisted thermal bonding method. The fabricated 152 × 152 mm² microfluidic chip has been successfully applied for droplet generation and splitting.
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Affiliation(s)
- Shuting Xie
- Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics & Joint International Research Laboratory of Optical Information of the Chinese Ministry of Education, South China Normal University, Guangzhou 510006, China.
| | - Jun Wu
- Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics & Joint International Research Laboratory of Optical Information of the Chinese Ministry of Education, South China Normal University, Guangzhou 510006, China.
| | - Biao Tang
- Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics & Joint International Research Laboratory of Optical Information of the Chinese Ministry of Education, South China Normal University, Guangzhou 510006, China.
| | - Guofu Zhou
- Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics & Joint International Research Laboratory of Optical Information of the Chinese Ministry of Education, South China Normal University, Guangzhou 510006, China.
| | - Mingliang Jin
- Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics & Joint International Research Laboratory of Optical Information of the Chinese Ministry of Education, South China Normal University, Guangzhou 510006, China.
| | - Lingling Shui
- Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics & Joint International Research Laboratory of Optical Information of the Chinese Ministry of Education, South China Normal University, Guangzhou 510006, China.
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Abstract
In this study, a novel buckled structure of edge-oriented MoS2 films is fabricated for the first time by employing monolayer graphene as the substrate for MoS2 film growth. Compared to typical buckling methods, our technique has several advantages: (1) external forces such as heat and mechanical strain are not applied; (2) uniform and controllable buckling over a large area is possible; and (3) films are able to be transferred to a desired substrate. Dual MoS2 orientation was observed in the buckled film where horizontally aligned MoS2 layers of 7 nm thickness were present near the bottom graphene surface and vertically aligned layers dominated the film toward the outer surface, in which the alignment structure was uniform across the entire film. The catalytic ability of the buckled MoS2 films, measured by performing water-splitting tests in acidic environments, shows a reduced onset potential of -0.2 V versus reversible hydrogen electrode (RHE) compared to -0.32 V versus RHE for pristine MoS2, indicating that the rough surface provided a higher catalytic activity. Our work presents a new method to generate a buckled MoS2 structure, which may be extended to the formation of buckled structures in various 2D materials for future applications.
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Affiliation(s)
| | | | | | | | | | - Hee-Tae Jung
- KAIST Institute for the Nanocentury, Daejeon 34141, Korea
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Chu HC, Chang YC, Lin Y, Chang SH, Chang WC, Li GA, Tuan HY. Spray-Deposited Large-Area Copper Nanowire Transparent Conductive Electrodes and Their Uses for Touch Screen Applications. ACS Appl Mater Interfaces 2016; 8:13009-17. [PMID: 27144911 DOI: 10.1021/acsami.6b02652] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Large-area conducting transparent conducting electrodes (TCEs) were prepared by a fast, scalable, and low-cost spray deposition of copper nanowire (CuNW) dispersions. Thin, long, and pure copper nanowires were obtained via the seed-mediated growth in an organic solvent-based synthesis. The mean length and diameter of nanowires are, respectively, 37.7 μm and 46 nm, corresponding to a high-mean-aspect ratio of 790. These wires were spray-deposited onto a glass substrate to form a nanowire conducting network which function as a TCE. CuNW TCEs exhibit high-transparency and high-conductivity since their relatively long lengths are advantageous in lowering in the sheet resistance. For example, a 2 × 2 cm(2) transparent nanowire electrode exhibits transmittance of T = 90% with a sheet resistance as low as 52.7 Ω sq(-1). Large-area sizes (>50 cm(2)) of CuNW TCEs were also prepared by the spray coating method and assembled as resistive touch screens that can be integrated with a variety of devices, including LED lighting array, a computer, electric motors, and audio electronic devices, showing the capability to make diverse sizes and functionalities of CuNW TCEs by the reported method.
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Affiliation(s)
- Hsun-Chen Chu
- Department of Chemical Engineering, National Tsing Hua University , 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013, Republic of China
| | - Yen-Chen Chang
- Department of Chemical Engineering, National Tsing Hua University , 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013, Republic of China
| | - Yow Lin
- Department of Chemical Engineering, National Tsing Hua University , 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013, Republic of China
| | - Shu-Hao Chang
- Department of Chemical Engineering, National Tsing Hua University , 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013, Republic of China
| | - Wei-Chung Chang
- Department of Chemical Engineering, National Tsing Hua University , 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013, Republic of China
| | - Guo-An Li
- Department of Chemical Engineering, National Tsing Hua University , 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013, Republic of China
| | - Hsing-Yu Tuan
- Department of Chemical Engineering, National Tsing Hua University , 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013, Republic of China
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Li H, Cui Q, Zhang Z, Fu L, Luo Q. Nonlinear optical microscopy for immunoimaging: a custom optimized system of high-speed, large-area, multicolor imaging. Quant Imaging Med Surg 2015; 5:30-9. [PMID: 25694951 DOI: 10.3978/j.issn.2223-4292.2014.11.07] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 10/31/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND The nonlinear optical microscopy has become the current state-of-the-art for intravital imaging. Due to its advantages of high resolution, superior tissue penetration, lower photodamage and photobleaching, as well as intrinsic z-sectioning ability, this technology has been widely applied in immunoimaging for a decade. However, in terms of monitoring immune events in native physiological environment, the conventional nonlinear optical microscope system has to be optimized for live animal imaging. Generally speaking, three crucial capabilities are desired, including high-speed, large-area and multicolor imaging. Among numerous high-speed scanning mechanisms used in nonlinear optical imaging, polygon scanning is not only linearly but also dispersion-freely with high stability and tunable rotation speed, which can overcome disadvantages of multifocal scanning, resonant scanner and acousto-optical deflector (AOD). However, low frame rate, lacking large-area or multicolor imaging ability make current polygonbased nonlinear optical microscopes unable to meet the requirements of immune event monitoring. METHODS We built up a polygon-based nonlinear optical microscope system which was custom optimized for immunoimaging with high-speed, large-are and multicolor imaging abilities. RESULTS Firstly, we validated the imaging performance of the system by standard methods. Then, to demonstrate the ability to monitor immune events, migration of immunocytes observed by the system based on typical immunological models such as lymph node, footpad and dorsal skinfold chamber are shown. Finally, we take an outlook for the possible advance of related technologies such as sample stabilization and optical clearing for more stable and deeper intravital immunoimaging. CONCLUSIONS This study will be helpful for optimizing nonlinear optical microscope to obtain more comprehensive and accurate information of immune events.
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Affiliation(s)
- Hui Li
- 1 Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan 430074, China ; 2 MoE Key Laboratory for Biomedical Photonics, Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Quan Cui
- 1 Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan 430074, China ; 2 MoE Key Laboratory for Biomedical Photonics, Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhihong Zhang
- 1 Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan 430074, China ; 2 MoE Key Laboratory for Biomedical Photonics, Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ling Fu
- 1 Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan 430074, China ; 2 MoE Key Laboratory for Biomedical Photonics, Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qingming Luo
- 1 Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan 430074, China ; 2 MoE Key Laboratory for Biomedical Photonics, Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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Li G, Li J, Zhang C, Hu Y, Li X, Chu J, Huang W, Wu D. Large-area one-step assembly of three-dimensional porous metal micro/nanocages by ethanol-assisted femtosecond laser irradiation for enhanced antireflection and hydrophobicity. ACS Appl Mater Interfaces 2015; 7:383-390. [PMID: 25473879 DOI: 10.1021/am506291f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The capability to realize 2D-3D controllable metallic micro/nanostructures is of key importance for various fields such as plasmonics, electronics, bioscience, and chemistry due to unique properties such as electromagnetic field enhancement, catalysis, photoemission, and conductivity. However, most of the present techniques are limited to low-dimension (1D-2D), small area, or single function. Here we report the assembly of self-organized three-dimensional (3D) porous metal micro/nanocages arrays on nickel surface by ethanol-assisted femtosecond laser irradiation. The underlying formation mechanism was investigated by a series of femtosecond laser irradiation under exposure time from 5 to 30 ms. We also demonstrate the ability to control the size of micro/nanocage arrays from 0.8 to 2 μm by different laser pulse energy. This method features rapidness (∼10 min), simplicity (one-step process), and ease of large-area (4 cm(2) or more) fabrication. The 3D cagelike micro/nanostructures exhibit not only improved antireflection from 80% to 7% but also enhanced hydrophobicity from 98.5° to 142° without surface modification. This simple technique for 3D large-area controllable metal microstructures will find great potential applications in optoelectronics, physics, and chemistry.
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Affiliation(s)
- Guoqiang Li
- Micro/Nano Engineering Laboratory, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
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