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Hoang Huy VP, Bark CW. A self-powered photodetector through facile processing using polyethyleneimine/carbon quantum dots for highly sensitive UVC detection. RSC Adv 2024; 14:12360-12371. [PMID: 38633486 PMCID: PMC11022040 DOI: 10.1039/d3ra08538d] [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: 12/14/2023] [Accepted: 03/16/2024] [Indexed: 04/19/2024] Open
Abstract
Ultraviolet C (UVC) photodetectors have garnered considerable attention recently because the detection of UVC is critical for preventing skin damage in humans, monitoring environmental conditions, detecting power aging in facilities, and military applications. As UVC detectors are "solar-blind", they encounter less interference than other environmental signals, resulting in low disturbance levels. This study employed a natural precursor (glucose) and a one-step ultrasonic reaction procedure to prepare carbon quantum dots (CQDs), which served as a convenient and environmentally friendly material to combine with polyethyleneimine (PEI). The prepared materials were used to develop a self-powered, high-performance UVC photodetector. The thickness of the constitutive film was investigated in detail based on the conditions of the electron transport pathway and trap positions to further improve the performance of the PEI/CQD photodetectors. Under the optimized conditions, the photodetector could generate a strong signal (1.5 mA W-1 at 254 nm) and exhibit high detectability (1.8 × 1010 Jones at 254 nm), an ultrafast response, and long-term stability during the power supply sequence. The developed solar-blind UVC photodetector can be applied in various ways to monitor UVC in an affordable, straightforward, and precise manner.
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Affiliation(s)
- Vo Pham Hoang Huy
- Department of Electrical Engineering, Gachon University Seongnam Gyeonggi 13120 Republic of Korea
| | - Chung Wung Bark
- Department of Electrical Engineering, Gachon University Seongnam Gyeonggi 13120 Republic of Korea
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2
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Zhang M, Wang Y, Liu K, Liu Y, Xu T, Du H, Si C. Strong, conductive, and freezing-tolerant polyacrylamide/PEDOT:PSS/cellulose nanofibrils hydrogels for wearable strain sensors. Carbohydr Polym 2023; 305:120567. [PMID: 36737205 DOI: 10.1016/j.carbpol.2023.120567] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/24/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023]
Abstract
Hydrogels with prominent flexibility, versatility, and high sensitivity play an important role in the design and fabrication of wearable sensors. In particular, these flexible conductive hydrogels exhibit elastic modulus that is highly compatible with human skin, demonstrating the great potential for flexible sensing. However, the preparation of high-performance hydrogel-based sensors that can restrain extreme cold conditions is still challenging. Herein, a novel anti-freezing composite hydrogel with superior conductivity based on polyacrylamide (PAM), LiCl, and PEDOT:PSS coated cellulose nanofibrils (PAM/PEDOT:PSS/CNF) is constructed. The addition of CNF increased the hydrogen bonding sites of the molecular chains in the micro, thus improving the mechanical strength and the conductivity of the hydrogel in the macro. The hydrogels achieve a high tensile strength of 0.19 MPa, compressive strength of 0.92 MPa, and dissipation energy of 41.9 kJ/m3. Otherwise, LiCl increases the interactions between the colloidal phase and water molecules, endowing the hydrogels with excellent freezing tolerance. Specifically, the optimized hydrogel of 45 % LiCl exhibited stable mechanical properties at -40 °C. Finally, the composite hydrogel was used to assemble flexible sensors with high sensitivity of 10.3 MPa-1, which can detect a wide range of human movements and physiological activities.
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Affiliation(s)
- Meng Zhang
- Tianjin Key Laboratory of Pulp and Paper, College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yaxuan Wang
- Tianjin Key Laboratory of Pulp and Paper, College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Kun Liu
- Tianjin Key Laboratory of Pulp and Paper, College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yang Liu
- Tianjin Key Laboratory of Pulp and Paper, College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Ting Xu
- Tianjin Key Laboratory of Pulp and Paper, College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Haishun Du
- Tianjin Key Laboratory of Pulp and Paper, College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.
| | - Chuanling Si
- Tianjin Key Laboratory of Pulp and Paper, College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Nanjing Forestry University, Nanjing 210037, China; State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, PR China.
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3
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Park SG, Rhee C, Jadhav DA, Eisa T, Al-Mayyahi RB, Shin SG, Abdelkareem MA, Chae KJ. Tailoring a highly conductive and super-hydrophilic electrode for biocatalytic performance of microbial electrolysis cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159105. [PMID: 36181811 DOI: 10.1016/j.scitotenv.2022.159105] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/14/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
Bioelectrochemical hydrogen production via microbial electrolysis cells (MECs) has attracted attention as the next generation of technology for the hydrogen economy. MECs work by electrochemically active bacteria reducing organic compounds at the anode. However, the hydrophobic nature of carbon-based anodes suppresses the release of the produced gas and water penetration, which significantly reduces the possibility of microbial attachment. Consequently, a limited surface area of the anode is used, which decreases hydrogen production efficiency. In this study, the bifunctional material poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) was applied to the surface of a three-dimensional carbon felt anode to enhance the hydrogen production efficiency of an MEC owing to the high conductivity of PEDOT and super-hydrophilicity of PSS. In experiments, the PEDOT:PSS-modified anode almost doubled the hydrogen production efficiency of the MEC compared with the control anode owing to the increased capacitance current (239.3 %) and biofilm formation (220.7 %). The modified anode reduced the time required for the MEC to reach a steady state of hydrogen production by 14 days compared to the control anode. Microbial community profiles demonstrated that the modified anode had a greater abundance of electrochemically active bacteria than the control anode. This simple method could be widely applied to various bioelectrochemical systems (e.g., microbial fuel cells and solar cells) and to scaling up MECs.
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Affiliation(s)
- Sung-Gwan Park
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Chaeyoung Rhee
- Department of Energy Engineering, Future Convergence Technology Research Institute, Gyeongsang National University, 501 Jinju-daero, Jinju, Gyeongnam 52828, Republic of Korea
| | - Dipak A Jadhav
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Tasnim Eisa
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Riyam B Al-Mayyahi
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Seung Gu Shin
- Department of Energy Engineering, Future Convergence Technology Research Institute, Gyeongsang National University, 501 Jinju-daero, Jinju, Gyeongnam 52828, Republic of Korea
| | - Mohammad Ali Abdelkareem
- Chemical Engineering Department, Faculty of Engineering, Minia University, Minia, Egypt; Center of Advanced Materials Research, Research Institute of Science and Engineering, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates; Department of Sustainable and Renewable Energy Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates.
| | - Kyu-Jung Chae
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea.
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4
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Liu K, Du H, Liu W, Zhang M, Wang Y, Liu H, Zhang X, Xu T, Si C. Strong, flexible, and highly conductive cellulose nanofibril/PEDOT:PSS/MXene nanocomposite films for efficient electromagnetic interference shielding. NANOSCALE 2022; 14:14902-14912. [PMID: 36047909 DOI: 10.1039/d2nr00468b] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Flexible and light weight electromagnetic interference (EMI) shielding materials with high electromagnetic shielding efficiency (SE) and excellent mechanical strength are highly demanded for wearable and portable electronics. In this work, for the first time, a freestanding and flexible cellulose nanofibril (CNF)/PEDOT:PSS/MXene (Ti3C2Tx) nanocomposite film with a ternary heterostructure was manufactured using a vacuum-assisted filtration process. The results show that compared with pure MXene films, the tensile strength of the optimized nanocomposite film increases from 8.88 MPa to 59.99 MPa, and the corresponding fracture strain increases from 0.87% to 4.60%. Intriguingly, the optimized nanocomposite film exhibited an impressive conductivity of 1903.2 S cm-1, which is among the highest values reported for MXene and cellulose-based nanocomposites. Owing to the superior conductivity and unique heterostructure, the nanocomposite film exhibits a high EMI SE value of 76.99 dB at a thickness of only 58.0 μm. Taking into account the robust mechanical properties and remarkable EMI shielding performance, the CNF/PEDOT:PSS/MXene nanocomposite film could be a prospective EMI shielding material for a variety of high-end applications.
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Affiliation(s)
- Kun Liu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Haishun Du
- Department of Chemical Engineering, Auburn University, Auburn, AL-36849, USA.
| | - Wei Liu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Meng Zhang
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Yaxuan Wang
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Huayu Liu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Xinyu Zhang
- Department of Chemical Engineering, Auburn University, Auburn, AL-36849, USA.
| | - Ting Xu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Chuanling Si
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
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Aguirre-Macías YP, Sánchez-Vergara ME, Monzón-González CR, Cosme I, Corona-Sánchez R, Álvarez-Bada JR, Álvarez-Toledano C. Deposition and post-treatment of promising poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate composite films for electronic applications. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02842-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Cha S, Lee E, Cho G. Fabrication of Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)/Poly(vinylidene fluoride) Nanofiber-Web-Based Transparent Conducting Electrodes for Dye-Sensitized Photovoltaic Textiles. ACS APPLIED MATERIALS & INTERFACES 2021; 13:28855-28863. [PMID: 34110147 DOI: 10.1021/acsami.1c06081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this work, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/poly(vinylidene fluoride) (PVDF) nanofiber-web-based transparent conducting electrodes (TCEs) were fabricated for use in dye-sensitized photovoltaic textiles. The PEDOT:PSS solution was mixed with dimethyl sulfoxide (DMSO) solvent, and the PEDOT:PSS/DMSO mixture was applied on the PVDF nanofiber web using a simple brush-painting technique to prepare ultrathin and -lightweight, highly transparent TCEs. When the PVDF nanofiber web was treated with a 3:7 PEDOT:PSS and DMSO mixture (P3D7 sample), it exhibited ∼84% transmittance at a wavelength of 550 nm with an average sheet resistance of ∼1.5 kΩ/sq. In addition, it showed a figure of merit (FOM) of 0.104 × 10-3 Ω-1. In the trial test, the P3D7 TCE-based photovoltaic textile exhibited an average voltage of 73.20 mV and an average current of 0.44 mA/cm2.
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Affiliation(s)
- Sujin Cha
- Department of Clothing & Textiles, Yonsei University, Seoul 03722, Republic of Korea
| | - Eugene Lee
- Department of Clothing & Textiles, Yonsei University, Seoul 03722, Republic of Korea
| | - Gilsoo Cho
- Department of Clothing & Textiles, Yonsei University, Seoul 03722, Republic of Korea
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Liu H, Lee J, Kang J. Improving the Sensitivity of an Organic Photodetector by Adding a Polar Solvent to the Hole-Transport Layer for Indirect X-ray Detection. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2021; 21:2992-2997. [PMID: 33653470 DOI: 10.1166/jnn.2021.19130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this work, we investigated how the performance enhancement of an organic X-ray detector was improved by adding a dimethyl sulfoxide (DMSO) polar solvent to poly(3, 4-ethylene dioxythiophene):poly(4-styrene sulfonate) (PEDOT:PSS) hole-transport layer. The changes in the properties, such as surface roughness, chemical structure, sheet resistance, and absorbance, of the PEDOT:PSS film caused by the DMSO treatment were examined. The application of DMSO treatment lowered the resistance of the PEDOT:PSS film because of the removal of PSS and the chemical structure change after DMSO treatment, and thus the transport of light-induced carriers was increased. The organic detector treated with 10 vol% DMSO showed the highest collected current density (CCD) of 357.42 nA/cm² and highest sensitivity of 2.58 mA/Gy ·cm², which were 31.88% and 32.31% higher than the CCD and sensitivity of the detector without DMSO treatment.
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Affiliation(s)
- Hailiang Liu
- Department of Electronics and Electrical Engineering, Dankook University 152 Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, 16890, Korea
| | - Jehoon Lee
- Department of Electronics and Electrical Engineering, Dankook University 152 Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, 16890, Korea
| | - Jungwon Kang
- Department of Electronics and Electrical Engineering, Dankook University 152 Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, 16890, Korea
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Sánchez-Vergara ME, Hamui L, Gómez E, Chans GM, Galván-Hidalgo JM. Design of Promising Heptacoordinated Organotin (IV) Complexes-PEDOT: PSS-Based Composite for New-Generation Optoelectronic Devices Applications. Polymers (Basel) 2021; 13:1023. [PMID: 33806246 PMCID: PMC8038072 DOI: 10.3390/polym13071023] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022] Open
Abstract
The synthesis of four mononuclear heptacoordinated organotin (IV) complexes of mixed ligands derived from tridentated Schiff bases and pyrazinecarboxylic acid is reported. This organotin (IV) complexes were prepared by using a multicomponent reaction, the reaction proceeds in moderate to good yields (64% to 82%). The complexes were characterized by UV-vis spectroscopy, IR spectroscopy, mass spectrometry, 1H, 13C, and 119Sn nuclear magnetic resonance (NMR) and elemental analysis. The spectroscopic analysis revealed that the tin atom is seven-coordinate in solution and that the carboxyl group acts as monodentate ligand. To determine the effect of the substituent on the optoelectronic properties of the organotin (IV) complexes, thin films were deposited, and the optical bandgap was obtained. A bandgap between 1.88 and 1.98 eV for the pellets and between 1.23 and 1.40 eV for the thin films was obtained. Later, different types of optoelectronic devices with architecture "contacts up/base down" were manufactured and analyzed to compare their electrical behavior. The design was intended to generate a composite based on the synthetized heptacoordinated organotin (IV) complexes embedded on the poly(3,4-ethylenedyoxithiophene)-poly(styrene sulfonate) (PEDOT:PSS). A Schottky curve at low voltages (<1.5 mV) and a current density variation of as much as ~3 × 10-5 A/cm2 at ~1.1 mV was observed. A generated photocurrent was of approximately 10-7 A and a photoconductivity between 4 × 10-9 and 7 × 10-9 S/cm for all the manufactured structures. The structural modifications on organotin (IV) complexes were focused on the electronic nature of the substituents and their ability to contribute to the electronic delocalization via the π system. The presence of the methyl group, a modest electron donor, or the non-substitution on the aromatic ring, has a reduced effect on the electronic properties of the molecule. However, a strong effect in the electronic properties of the material can be inferred from the presence of electron-withdrawing substituents like chlorine, able to reduce the gap energies.
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Affiliation(s)
- María Elena Sánchez-Vergara
- Facultad de Ingeniería, Universidad Anáhuac México, Avenida Universidad Anáhuac 46, Col. Lomas Anáhuac, Huixquilucan 52786, Estado de México, Mexico;
| | - Leon Hamui
- Facultad de Ingeniería, Universidad Anáhuac México, Avenida Universidad Anáhuac 46, Col. Lomas Anáhuac, Huixquilucan 52786, Estado de México, Mexico;
| | - Elizabeth Gómez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n. C.U., Alcaldia Coyoacán, Ciudad de México 04510, Mexico; (G.M.C.); (J.M.G.-H.)
| | - Guillermo M. Chans
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n. C.U., Alcaldia Coyoacán, Ciudad de México 04510, Mexico; (G.M.C.); (J.M.G.-H.)
| | - José Miguel Galván-Hidalgo
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n. C.U., Alcaldia Coyoacán, Ciudad de México 04510, Mexico; (G.M.C.); (J.M.G.-H.)
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Anh NN, Van Chuc N, Thang BH, Van Nhat P, Hao N, Phuong DD, Minh PN, Subramani T, Fukata N, Van Trinh P. Solar Cell Based on Hybrid Structural SiNW/Poly(3,4 ethylenedioxythiophene): Poly(styrenesulfonate)/Graphene. GLOBAL CHALLENGES (HOBOKEN, NJ) 2020; 4:2000010. [PMID: 32999734 PMCID: PMC7507695 DOI: 10.1002/gch2.202000010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/12/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
Solar energy is considered as a potential alternative energy source. The solar cell is classified into three main types: i) solar cells based on bulk silicon materials (monocrystalline, polycrystalline), ii) thin-film solar cells (CIGS, CdTe, DSSC, etc.), and iii) solar cells based on nanostructures and nanomaterials. Nowadays, commercial solar cells are usually made by bulk silicon material, which requires not only high fabrication costs but also limited performance. In this study, the fabrication of high-performance solar cells based on hybrid structure of silicon nanowires/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/graphene (SiNW/PEDOT:PSS/Gr) is focused upon. SiNWs with different lengths of 125, 400, 800 nm, and 2 µm are fabricated by a metal-assisted chemical etching method, and their influence on the performance of the hybrid solar cells is studied and investigated. The experimental results indicate that the suitable SiNW length for the fabrication of the hybrid solar cells is about 400 nm and the best power conversion efficiency obtained is about 9.05%, which is about 2.1 times higher than that of the planar Si solar cell.
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Affiliation(s)
- Nguyen Ngoc Anh
- Institute of Materials ScienceVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
| | - Nguyen Van Chuc
- Institute of Materials ScienceVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
- Graduate University of Science and TechnologyVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
| | - Bui Hung Thang
- Institute of Materials ScienceVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
- Graduate University of Science and TechnologyVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
| | - Pham Van Nhat
- University of Science and Technology of HanoiVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
| | - NguyenVan Hao
- Faculty of Physics and TechnologyTNU‐University of SciencesTan Thinh WardThai Nguyen24000Vietnam
| | - Doan Dinh Phuong
- Institute of Materials ScienceVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
- Graduate University of Science and TechnologyVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
| | - Phan Ngoc Minh
- Graduate University of Science and TechnologyVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
| | - Thiyagu Subramani
- International Center for Materials NanoarchitectonicsNational Institute for Materials Science1‐1 NamikiTsukubaIbaraki305‐0044Japan
| | - Naoki Fukata
- International Center for Materials NanoarchitectonicsNational Institute for Materials Science1‐1 NamikiTsukubaIbaraki305‐0044Japan
| | - Pham Van Trinh
- Institute of Materials ScienceVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
- Graduate University of Science and TechnologyVietnam Academy of Science and Technology18 Hoang Quoc Viet Str., Cau GiayHanoi10000Vietnam
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Ren Q, Qiu J, Lv X, Li HY, Yan L, Meng C, Yang Y, Mai Y. Tailoring the Vertical Morphology of Organic Films for Efficient Planar-Si/Organic Hybrid Solar Cells by Facile Nonpolar Solvent Treatment. ACS APPLIED MATERIALS & INTERFACES 2020; 12:25075-25080. [PMID: 32420724 DOI: 10.1021/acsami.0c02063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The optical and electrical properties of the blending organic film poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) are strongly affected by its morphology, resulting in the performance variation in Si/organic hybrid solar cells. Here, a facile postsolvent treatment is used to tailor the vertical morphology of PEDOT:PSS by introducing a nonpolar solvent. X-ray photoelectron spectroscopy depth-profiling measurements show that the distribution of PEDOT and PSS on the surface of n-type Si can be changed by nonpolar solvent n-hexane (NHX) treatment, where more PSS aggregate at the bottom of the blend film and more PEDOT float up to the top, as compared with the reference sample. As a result, after NHX treatment, the average lifetime of the Si/organic films is increased from 152 μs for untreated samples to 248 μs for NHX-treated ones because of the better passivation effect of PSS on Si. Moreover, the transmission line model measurements indicate that the contact resistance (RC) of PEDOT:PSS film and the Ag electrode is decreased for better charge collection after NHX treatment. Eventually, the best power conversion efficiency (PCE) of 13.78% for NHX-treated planar solar cells is obtained, much higher than the PCE (with best of 12.78%) of reference devices without nonpolar solvent treatment. Our results provide a facile method to tailor the vertical morphology of the PEDOT:PSS in Si/organic hybrid solar cells.
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Affiliation(s)
- Qiyou Ren
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou 510632, China
| | - Jufeng Qiu
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou 510632, China
| | - Xiaoning Lv
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou 510632, China
| | - Huan-Yong Li
- Analytical and Testing Center, Jinan University, Guangzhou 510632, China
| | - Li Yan
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou 510632, China
| | - Chunfeng Meng
- School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Yuzhao Yang
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yaohua Mai
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou 510632, China
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Ismail AH, Mohd Yahya NA, Mahdi MA, Yaacob MH, Sulaiman Y. Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122313] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Acidity Suppression of Hole Transport Layer via Solution Reaction of Neutral PEDOT:PSS for Stable Perovskite Photovoltaics. Polymers (Basel) 2020; 12:polym12010129. [PMID: 31935790 PMCID: PMC7022435 DOI: 10.3390/polym12010129] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/28/2019] [Accepted: 01/01/2020] [Indexed: 12/27/2022] Open
Abstract
Poly(3,4-ethylenedioxythiophene): poly(4-styrenesulfonate) (PEDOT:PSS) is typically used for hole transport layers (HTLs), as it exhibits attractive mechanical, electrical properties, and easy processability. However, the intrinsically acidic property can degrade the crystallinity of perovskites, limiting the stability and efficiency of perovskite solar cells (PSCs). In this study, inverted CH3NH3PbI3 photovoltaic cells were fabricated with acidity suppressed HTL. We adjusted PEDOT:PSS via a solution reaction of acidic and neutral PEDOT:PSS. And we compared the various pH-controlled HTLs for PSCs devices. The smoothness of the pH-controlled PEDOT:PSS layer was similar to that of acidic PEDOT:PSS-based devices. These layers induced favorable crystallinity of perovskite compared with acidic PEDOT:PSS layers. Furthermore, the enhanced stability of pH optimized PEDOT:PSS-based devices, including the prevention of degradation by a strong acid, allowed the device to retain its power conversion efficiency (PCE) value by maintaining 80% of PCE for approximately 150 h. As a result, the pH-controlled HTL layer fabricated through the solution reaction maintained the surface morphology of the perovskite layer and contributed to the stable operation of PSCs.
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Wang H, Chen H, Li L, Wang Y, Su L, Bian W, Li B, Fang X. High Responsivity and High Rejection Ratio of Self-Powered Solar-Blind Ultraviolet Photodetector Based on PEDOT:PSS/β-Ga 2O 3 Organic/Inorganic p-n Junction. J Phys Chem Lett 2019; 10:6850-6856. [PMID: 31623440 DOI: 10.1021/acs.jpclett.9b02793] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A high responsivity self-powered solar-blind deep UV (DUV) photodetector with high rejection ratio was proposed based on inorganic/organic hybrid p-n junction. Owing to the high crystallized β-Ga2O3 and excellent transparent conductive polymer PEDOT:PSS, the device exhibited ultrahigh responsivity of 2.6 A/W at 245 nm with a sharp cutoff wavelength at 255 nm without any power supply. The responsivity is much larger than that of previous solar-blind DUV photodetectors. Moreover, the device exhibited an ultrahigh solar-blind/UV rejection ratio (R245 nm/R280 nm) of 103, which is two orders of magnitude larger than the average value reported in Ga2O3-based solar-blind photodetectors. In addition, the photodetector shows a narrow bandpass response of only 17 nm in width. This work might be of great value in developing a high wavelength selective DUV photodetector with respect to low cost for future energy-efficient photoelectric devices.
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Affiliation(s)
- Hebin Wang
- Department of Physics , Harbin Institute of Technology , Harbin 150001 , P. R. China
| | - Hongyu Chen
- Department of Physics , Harbin Institute of Technology , Harbin 150001 , P. R. China
| | - Li Li
- School of Life Science and Technology , Harbin Institute of Technology , Harbin 150080 , P. R. China
| | - Yuefei Wang
- Department of Physics , Harbin Institute of Technology , Harbin 150001 , P. R. China
| | - Longxing Su
- Department of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , P. R. China
| | - Wanpeng Bian
- Department of Physics , Harbin Institute of Technology , Harbin 150001 , P. R. China
| | - Bingsheng Li
- Center for Advanced Optoelectronic Functional Materials Research, Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education , Northeast Normal University , Changchun 130024 , P. R. China
| | - Xiaosheng Fang
- Department of Materials Science , Fudan University , Shanghai 200433 , P. R. China
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