1
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Lee JH, Lee S, Anthony JE, Lim S, Nguyen KV, Kim SB, Jang J, Jang HW, Lee H, Lee WH. Crystal Engineering Under Residual Solvent Evaporation: A Journey Into Crystallization Chronicles of Soluble Acenes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2405966. [PMID: 39344519 DOI: 10.1002/smll.202405966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 09/06/2024] [Indexed: 10/01/2024]
Abstract
In the pursuit of achieving high-performance and high-throughput organic transistors, this study highlights two critical aspects: designing new soluble acenes and optimizing their solution processing. A fundamental understanding of the crystallization mechanism inherent to these customized soluble acenes, as they undergo a transformation during the evaporation of residual solvent, is deemed essential. Here, the pathway to crafting ideal solution processing conditions is elucidated, meticulously tailored to the molecular structure of soluble acenes when blended with polymers. Employing a comprehensive array of analytical and computational methodologies, this investigation delves directly into the intricate interplay between processing parameters and crystallization mechanisms, firmly rooted in the domains of thermodynamics and kinetics. Notably, a delicate equilibrium where the optimal weight of residual solvent harmoniously aligns is uncovered with the specific attributes of soluble acene molecules, exerting influence over vertical phase separation with the blended polymer and the crystallization process of soluble acenes at the surface. Consequently, transistors showcasing remarkable field-effect mobility exceeding 8 cm2 V-1 s-1 are successfully developed. These findings provide invaluable guidance for navigating the path toward determining optimal solution processing conditions across a diverse array of soluble acene/polymer blend systems, all achieved through the strategic application of crystal and residual solvent engineering.
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Affiliation(s)
- Jung Hun Lee
- Department of Materials Science and Engineering, Research Institute for Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Materials Science and Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Seunghan Lee
- Department of Physics, Konkuk University, Seoul, 05029, Republic of Korea
| | - John E Anthony
- Center for Applied Energy Research, University of Kentucky, Lexington, 40511, USA
| | - Soohwan Lim
- Department of Materials Science and Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Ky Van Nguyen
- Department of Materials Science and Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Sang Beom Kim
- Department of Energy Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Jaeyoung Jang
- Department of Energy Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute for Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hoonkyung Lee
- Department of Physics, Konkuk University, Seoul, 05029, Republic of Korea
| | - Wi Hyoung Lee
- Department of Materials Science and Engineering, Konkuk University, Seoul, 05029, Republic of Korea
- Division of Chemical Engineering, Konkuk University, Seoul, 05029, Republic of Korea
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2
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Trinh CK, Oh HS, Lee H. The solvent effect on the morphology and molecular ordering of benzothiadiazole-based small molecule for inkjet-printed thin-film transistors. RSC Adv 2023; 13:14210-14216. [PMID: 37180007 PMCID: PMC10170492 DOI: 10.1039/d3ra02036c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023] Open
Abstract
A small molecule organic semiconductor, D(D'-A-D')2 comprising benzothiadiazole as an acceptor, 3-hexylthiophene, and thiophene as donors, was successfully synthesized. X-ray diffraction and atomic force microscopy were used to investigate the effect of a dual solvent system with varying ratios of chloroform and toluene on film crystallinity and film morphology via inkjet printing. The film prepared with a chloroform to toluene ratio of 1.5 : 1 showed better performance with improved crystallinity and morphology due to having enough time to control the arrangement of molecules. In addition, by optimizing ratios of CHCl3 to toluene, the inkjet-printed TFT based on 3HTBTT using a CHCl3 and toluene ratio of 1.5 : 1 was successfully fabricated and exhibited a hole mobility of 0.01 cm2 V-1 s-1 due to the improved molecular ordering of the 3HTBTT film.
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Affiliation(s)
- Cuc Kim Trinh
- Chemical Engineering in Advanced Materials and Renewable Energy Research Group, School of Technology, Van Lang University Ho Chi Minh City Vietnam
- Faculty of Applied Technology, School of Technology, Van Lang University Ho Chi Minh City Vietnam
| | - Ha Som Oh
- Department of Chemistry, Myongji University 116 Myongji Ro Yongin Gyeonggi-do Republic of Korea
| | - Hanleem Lee
- Department of Chemistry, Myongji University 116 Myongji Ro Yongin Gyeonggi-do Republic of Korea
- The Natural Science Research Institute, Myongji University 116 Myongji Ro Yongin Gyeonggi-do South Korea
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3
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Kousseff CJ, Halaksa R, Parr ZS, Nielsen CB. Mixed Ionic and Electronic Conduction in Small-Molecule Semiconductors. Chem Rev 2021; 122:4397-4419. [PMID: 34491034 DOI: 10.1021/acs.chemrev.1c00314] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Small-molecule organic semiconductors have displayed remarkable electronic properties with a multitude of π-conjugated structures developed and fine-tuned over recent years to afford highly efficient hole- and electron-transporting materials. Already making a significant impact on organic electronic applications including organic field-effect transistors and solar cells, this class of materials is also now naturally being considered for the emerging field of organic bioelectronics. In efforts aimed at identifying and developing (semi)conducting materials for bioelectronic applications, particular attention has been placed on materials displaying mixed ionic and electronic conduction to interface efficiently with the inherently ionic biological world. Such mixed conductors are conveniently evaluated using an organic electrochemical transistor, which further presents itself as an ideal bioelectronic device for transducing biological signals into electrical signals. Here, we review recent literature relevant for the design of small-molecule mixed ionic and electronic conductors. We assess important classes of p- and n-type small-molecule semiconductors, consider structural modifications relevant for mixed conduction and for specific interactions with ionic species, and discuss the outlook of small-molecule semiconductors in the context of organic bioelectronics.
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Affiliation(s)
- Christina J Kousseff
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom
| | - Roman Halaksa
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom
| | - Zachary S Parr
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom
| | - Christian B Nielsen
- Department of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom
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4
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Xu J, Wang L, Zhao X, Shi Y, Shi Y, Liu T. High-Performance Blue Quantum Dot Light Emitting Diode via Solvent Optimization Strategy for ZnO Nanoparticles. NANOMATERIALS 2021; 11:nano11040959. [PMID: 33918667 PMCID: PMC8070000 DOI: 10.3390/nano11040959] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/03/2021] [Accepted: 04/07/2021] [Indexed: 11/16/2022]
Abstract
Here, we report on the high-performance blue quantum dots (QDs) light-emitting diodes (QLEDs), in which the ZnO nanoparticles (NPs) are employed as the electron transport layer (ETL) and optimized with different alcohol solvents. The experimental results demonstrate that the properties of solvent used for ZnO NPs—such as polarity, viscosity and boiling point—play a crucial role in the quality of film where they modulate the electron injection across the QDs/ETL interface. The maximum current efficiency of 3.02 cd/A and external quantum efficiency (EQE) of 3.3% are achieved for blue QLEDs with ZnO NPs dispersed in butanol, exhibiting obvious enhancement compared with the other solvents. This work provides a new method to select proper solvent for ETL which can further improve the device performance.
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Affiliation(s)
- Ji Xu
- School of Electronic and Information Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China;
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (Y.S.); (Y.S.)
- Correspondence: (J.X.); (L.W.); (T.L.)
| | - Lixi Wang
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (Y.S.); (Y.S.)
- Correspondence: (J.X.); (L.W.); (T.L.)
| | - Xueliang Zhao
- School of Electronic and Information Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China;
| | - Yutong Shi
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (Y.S.); (Y.S.)
| | - Yongjiao Shi
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (Y.S.); (Y.S.)
| | - Ting Liu
- Department of Physics, College of Science, Beijing University of Chemical Technology, 15 East Road, Beijing 100029, China
- Correspondence: (J.X.); (L.W.); (T.L.)
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Chou LH, Na Y, Park CH, Park MS, Osaka I, Kim FS, Liu CL. Semiconducting small molecule/polymer blends for organic transistors. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122208] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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6
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He Z, Chen J, Li D. Polymer additive controlled morphology for high performance organic thin film transistors. SOFT MATTER 2019; 15:5790-5803. [PMID: 31290910 DOI: 10.1039/c9sm01053j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Solution-crystallizable small-molecule organic semiconductors, such as 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS pentacene), 5,11-bis(triethylgermylethynyl)anthradithiophene (diF-TEG-ADT), 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT), and N,N'-1H,1H-perfluorobutyl dicyanoperylenecarboxydiimide (PDIF-CN2), demonstrate various practical advantages including high mobility, air stability and solution processibility. In this article, we review various polymer additive based approaches to control the crystal morphology and the resultant charge transport of some bench-mark, high performance, solution crystallizable, small-molecule organic semiconductors. The polymer additives are discussed under the categories of non-conjugated polymers and conjugated polymers. The approaches and structure-performance correlations that we discussed here may be applied far beyond the examples shown in this review and have important implications for high performance organic semiconductors in general.
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Affiliation(s)
- Zhengran He
- Department of Electrical and Computer Engineering, Center for Materials for Information Technology, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Jihua Chen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
| | - Dawen Li
- Department of Electrical and Computer Engineering, Center for Materials for Information Technology, The University of Alabama, Tuscaloosa, AL 35487, USA.
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7
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Kim K, Hong J, Hahm SG, Rho Y, An TK, Kim SH, Park CE. Facile and Microcontrolled Blade Coating of Organic Semiconductor Blends for Uniaxial Crystal Alignment and Reliable Flexible Organic Field-Effect Transistors. ACS APPLIED MATERIALS & INTERFACES 2019; 11:13481-13490. [PMID: 30874423 DOI: 10.1021/acsami.8b21130] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The ability to fabricate uniform and high-quality patterns of organic semiconductors using a simple method is necessary to realize high-performance and reliable organic field-effect transistors (OFETs) for practical applications. Here, we report the facile fabrication of chemically patterned substrates in order to provide solvent wetting/dewetting regions and grow patterned crystals during blade coating of a small-molecule semiconductor/insulating polymer blend solution. Polyurethane acrylate is selected as the solvent dewetting material, not only because of its hydrophobicity but also because its patterns are easily produced by selective UV irradiation onto precursor films. 6,13-Bis(triisopropylsilylethynyl)pentacene (TIPS-PEN) crystal patterns are grown on the line-shaped wetting regions of the patterned film, and the crystallinity of TIPS-PEN and alignment of molecules are found using various crystal analysis tools depending on the pattern widths. The smallest width of 5 μm yielded an OFET showing the highest field-effect mobility value of 1.63 cm2/(V·s), which is much higher than the value of the OFET based on the unpatterned TIPS-PEN crystal. Notably, we demonstrate flexible and low-voltage-operating OFETs for practical use of the patterned crystals, and the OFETs show highly stable operation under sustained gate bias stress thanks to the patterned crystals.
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Affiliation(s)
- Kyunghun Kim
- Department of Chemical Engineering , Pohang University of Science and Technology , Pohang 790-784 , Korea
| | - Jisu Hong
- Department of Chemical Engineering , Pohang University of Science and Technology , Pohang 790-784 , Korea
| | - Suk Gyu Hahm
- Materials Research Center , Samsung Advanced Institute of Technology , Suwon 443-803 , Korea
| | - Yecheol Rho
- Chemical Analysis Center , Korea Research Institute of Chemical Technology , Daejeon 34114 , Korea
| | - Tae Kyu An
- Department of Polymer Science & Engineering , Korea National University of Transportation , 50 Daehak-Ro , Chungju 27469 , Korea
| | - Se Hyun Kim
- School of Engineering , Yeungnam University , 280 Daehak-Ro , Gyeongsan , Gyeongbuk 38541 , Korea
| | - Chan Eon Park
- Department of Chemical Engineering , Pohang University of Science and Technology , Pohang 790-784 , Korea
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8
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Park H, Kwon J, Kang B, Kim W, Kim YH, Cho K, Jung S. Control of Concentration of Nonhydrogen-Bonded Hydroxyl Groups in Polymer Dielectrics for Organic Field-Effect Transistors with Operational Stability. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24055-24063. [PMID: 29938485 DOI: 10.1021/acsami.8b06653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Poly(4-vinylphenol) (PVP) is a promising gate dielectric material for organic field-effect transistors (OFETs) and circuits fabricated on plastic substrates. Thermal cross-linking of PVP with a cross-linker, such as poly(melamine- co-formaldehyde) methylated (PMF), at a high temperature (above 170 °C) is widely considered an effective method to remove residual hydroxyl groups that induce polarization effects in the dielectric bulk. However, the threshold voltage shift in transfer characteristics is still observed for an OFET with a PVP-PMF dielectric when it is operated at a slow gate voltage sweep rate. The present study examines the cause of the undesired hysteresis phenomenon and suggests a route to enable a reliable operation. We systematically investigate the effect of the PVP-PMF weight ratio and their annealing temperature on the transfer characteristics of OFETs. We discover that the size of the hysteresis is closely related to the concentration of nonhydrogen-bonded hydroxyl groups in the dielectric bulk and this is controlled by the weight ratio. At a ratio of 0.5:1, a complete elimination of hysteresis was observed irrespective of the annealing temperature. We finally demonstrate a highly reliable operation of small-molecule-based OFETs fabricated on a plastic substrate at a low temperature.
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Affiliation(s)
| | | | | | | | - Yun-Hi Kim
- Department of Chemistry and Research Institute of Natural Science , Gyeongsang National University , 501 Jinju Daero , Jinju , Gyeongnam 52828 , Republic of Korea
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9
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Controllable electrical performance of spray-coated semiconducting small molecule/insulating polymer blend thin film for organic field effect transistors application. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.04.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Paterson AF, Treat ND, Zhang W, Fei Z, Wyatt-Moon G, Faber H, Vourlias G, Patsalas PA, Solomeshch O, Tessler N, Heeney M, Anthopoulos TD. Small Molecule/Polymer Blend Organic Transistors with Hole Mobility Exceeding 13 cm(2) V(-1) s(-1). ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:7791-7798. [PMID: 27374749 DOI: 10.1002/adma.201601075] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 05/23/2016] [Indexed: 06/06/2023]
Abstract
A ternary organic semiconducting blend composed of a small-molecule, a conjugated polymer, and a molecular p-dopant is developed and used in solution-processed organic transistors with hole mobility exceeding 13 cm(2) V(-1) s(-1) (see the Figure). It is shown that key to this development is the incorporation of the p-dopant and the formation of a vertically phase-separated film microstructure.
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Affiliation(s)
- Alexandra F Paterson
- Department of Physics and Centre for Plastic Electronics, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Neil D Treat
- Department of Materials, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Weimin Zhang
- College of Chemistry and Chemical Engineering Guangxi, University for Nationalities, Nanning, 530006, P. R. China
| | - Zhuping Fei
- Department of Chemistry and Centre for Plastic Electronics, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Gwenhivir Wyatt-Moon
- Department of Physics and Centre for Plastic Electronics, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Hendrik Faber
- Department of Physics and Centre for Plastic Electronics, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - George Vourlias
- Department of Physics, Laboratory of Applied Physics, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | - Panos A Patsalas
- Department of Physics, Laboratory of Applied Physics, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | - Olga Solomeshch
- Sara and Moshe Zisapel Nano-Electronic Center, Department of Electrical Engineering, Technion - Israel Institute of Technology, Haifa, 3200, Israel
| | - Nir Tessler
- Sara and Moshe Zisapel Nano-Electronic Center, Department of Electrical Engineering, Technion - Israel Institute of Technology, Haifa, 3200, Israel
| | - Martin Heeney
- Department of Chemistry and Centre for Plastic Electronics, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Thomas D Anthopoulos
- Department of Physics and Centre for Plastic Electronics, Imperial College London, South Kensington, London, SW7 2AZ, UK.
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11
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Zhang G, Yang H, He L, Hu L, Lan S, Li F, Chen H, Guo T. Importance of domain purity in semi-conducting polymer/insulating polymer blends transistors. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/polb.24080] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Guocheng Zhang
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology; Fuzhou University; Fuzhou 350002 People's Republic of China
- College of Information Science and Engineering, Fujian University of Technology; Fuzhou 350108 People's Republic of China
| | - Huihuang Yang
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology; Fuzhou University; Fuzhou 350002 People's Republic of China
| | - Lilin He
- Biology & Soft Matter Division; Neutron Science Directorate, Oak Ridge National Lab; Oak Ridge Tennessee 37831
| | - Liqin Hu
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology; Fuzhou University; Fuzhou 350002 People's Republic of China
| | - Shuqiong Lan
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology; Fuzhou University; Fuzhou 350002 People's Republic of China
| | - Fushan Li
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology; Fuzhou University; Fuzhou 350002 People's Republic of China
| | - Huipeng Chen
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology; Fuzhou University; Fuzhou 350002 People's Republic of China
| | - Tailiang Guo
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology; Fuzhou University; Fuzhou 350002 People's Republic of China
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12
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Yang JM, Wang FX, Pan GB. Highly sensitive broadband flexible photodetectors based on a blend film with zinc octaethylporphyrin long nanowires embedded in an insulating polymer. NANOSCALE 2016; 8:2811-2818. [PMID: 26763660 DOI: 10.1039/c5nr08565a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Blend films with long nanowires of zinc octaethylporphyrin (ZnOEP) embedded in an insulating polymer of poly(methyl methacrylate) (PMMA) have been successfully fabricated by a one-step spin-coating process. Concerning photoactive blends based on small-molecule semiconductors, this is quite a novel strategy and allows us to greatly reduce the issues related to low device performance, such as phase-separation, poor connectivity of the semiconducting layer, and higher densities of interfacial defects. Intensive studies on the correlation between the film morphology and device performance have revealed that excellent photodetector performance is derived from efficient charge transport and good connectivity observed in highly crystalline, interconnected ZnOEP nanowires embedded in an insulating PMMA matrix. To the best of our knowledge, this is the first demonstration of a blend-film-based organic photodetector, which exhibits high sensitivity, high stability, high I(on)/I(off) ratio, excellent mechanical flexibility, and a broadband responsivity region extending up to 1050 nm. The unique characteristics of facile fabrication, high sensitivity, excellent mechanical stability, and broadband responsivity can make the blend film of ZnOEP and PMMA promising in large-area flexible photodetectors.
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Affiliation(s)
- Jia-Mei Yang
- Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China. and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, 710049 Xi'an, P. R. China
| | - Feng-Xia Wang
- Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China.
| | - Ge-Bo Pan
- Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China.
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13
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Niazi MR, Li R, Qiang Li E, Kirmani AR, Abdelsamie M, Wang Q, Pan W, Payne MM, Anthony JE, Smilgies DM, Thoroddsen ST, Giannelis EP, Amassian A. Solution-printed organic semiconductor blends exhibiting transport properties on par with single crystals. Nat Commun 2015; 6:8598. [PMID: 26592862 PMCID: PMC4673501 DOI: 10.1038/ncomms9598] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 09/09/2015] [Indexed: 02/08/2023] Open
Abstract
Solution-printed organic semiconductors have emerged in recent years as promising contenders for roll-to-roll manufacturing of electronic and optoelectronic circuits. The stringent performance requirements for organic thin-film transistors (OTFTs) in terms of carrier mobility, switching speed, turn-on voltage and uniformity over large areas require performance currently achieved by organic single-crystal devices, but these suffer from scale-up challenges. Here we present a new method based on blade coating of a blend of conjugated small molecules and amorphous insulating polymers to produce OTFTs with consistently excellent performance characteristics (carrier mobility as high as 6.7 cm(2) V(-1) s(-1), low threshold voltages of<1 V and low subthreshold swings <0.5 V dec(-1)). Our findings demonstrate that careful control over phase separation and crystallization can yield solution-printed polycrystalline organic semiconductor films with transport properties and other figures of merit on par with their single-crystal counterparts.
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Affiliation(s)
- Muhammad R. Niazi
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Ruipeng Li
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Er Qiang Li
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Ahmad R. Kirmani
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Maged Abdelsamie
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Qingxiao Wang
- Advanced Imaging and Characterization Laboratory, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Wenyang Pan
- Department of Materials Science and Engineering, Cornell University, Ithaca, 14850 New York, USA
| | - Marcia M. Payne
- Department of Chemistry, University of Kentucky, Lexington, 40506 Kentucky, USA
| | - John E. Anthony
- Department of Chemistry, University of Kentucky, Lexington, 40506 Kentucky, USA
| | - Detlef-M. Smilgies
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, 14850 New York, USA
| | - Sigurdur T. Thoroddsen
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Emmanuel P. Giannelis
- Department of Materials Science and Engineering, Cornell University, Ithaca, 14850 New York, USA
| | - Aram Amassian
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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14
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Homogeneous Crystallization of Micro-DispensedTIPS-Pentacene Using a Two-Solvent System toEnable Printed Inverters on Foil Substrates. ELECTRONICS 2015. [DOI: 10.3390/electronics4030565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Hunter S, Anthopoulos TD. Observation of unusual, highly conductive grain boundaries in high-mobility phase separated organic semiconducting blend films probed by lateral-transport conductive-AFM. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:4320-4326. [PMID: 23703783 DOI: 10.1002/adma.201300020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 03/19/2013] [Indexed: 06/02/2023]
Abstract
The effect of grain boundaries in high hole mobility organic blend films of diF-TES ADT:PTAA is evaluated using conductive-AFM measurements revealing the presence of unusually conductive grain boundaries. The latter characteristic has not been reported previously for any other organic semiconducting film system and is believed to underpin the excellent and morphology-independent hole transport characteristics seen in these composite films.
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Affiliation(s)
- Simon Hunter
- Department of Physics and Centre for Plastic Electronics, Imperial College London, South Kensington, SW7 2AZ, UK
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16
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Hwang DK, Fuentes-Hernandez C, Berrigan JD, Fang Y, Kim J, Potscavage WJ, Cheun H, Sandhage KH, Kippelen B. Solvent and polymer matrix effects on TIPS-pentacene/polymer blend organic field-effect transistors. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16487f] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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