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Ko M, Kim HU, Jeon N. Boosting Electrochemical Activity of Porous Transparent Conductive Oxides Electrodes Prepared by Sequential Infiltration Synthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105898. [PMID: 35187788 DOI: 10.1002/smll.202105898] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Sequential infiltration synthesis (SIS) is an emerging technique for producing inorganic-organic hybrid materials and templated inorganic nanomaterials. The application space for SIS is expanding rapidly in areas such as lithography, filtration, photovoltaics, antireflection, and triboelectricity, but not in the field of electrochemistry. This study performs SIS for the fabrication of porous, transparent, and electrically conductive films of indium zinc oxide (IZO) to evaluate their potential as an electrode for electrochemistry. The electrochemical activity of IZO-coated electrodes is evaluated when their surfaces are modified with ferrocenecarboxylic acid (FcCOOH), a model redox molecule. Results show a 25-fold enhancement in peak current densities mediated by an Fc/Fc+ redox couple for an IZO-coated electrode in comparison with bare electrodes; this is afforded by the porous morphology of the IZO film and the enhanced binding efficiency of FcCOOH on the IZO film. The results confirm the potential of SIS for the preparation of porous transparent conducting oxide electrodes, which will enable the application of SIS-derived materials in various electrochemical fields.
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Affiliation(s)
- Minkyung Ko
- Department of Materials Science and Engineering, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Hyeong-U Kim
- Department of Plasma Engineering, Korea Institute of Machinery and Materials (KIMM), Daejeon, 34103, Republic of Korea
| | - Nari Jeon
- Department of Materials Science and Engineering, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
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Self-doped SnO2:F synthesis by aerosol-spray deposition technique and their application in relative humidity sensor devices. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-019-01047-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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3
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Jang SM, Yang SC. Highly piezoelectric BaTiO 3 nanorod bundle arrays using epitaxially grown TiO 2 nanomaterials. NANOTECHNOLOGY 2018; 29:235602. [PMID: 29582775 DOI: 10.1088/1361-6528/aab9cf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Low-dimensional piezoelectric nanostructures such as nanoparticles, nanotubes, nanowires, nanoribbons and nanosheets have been developed for potential applications as energy harvesters, tunable sensors, functional transducers and low-power actuators. In this study, lead-free BaTiO 3 nanorod bundle arrays (NBA) with highly piezoelectric properties were successfully synthesized on fluorine-doped tin oxide (FTO) substrate via a two-step process consisting of TiO2 epitaxial growth and BaTiO3 conversion. Through the TiO2 epitaxial growth on FTO substrate, (001) oriented TiO2 nanostructures formed vertically-aligned NBA with a bundle diameter of 80 nm and an aspect ratio of six. In particular, chemical etching of the TiO2 NBA was conducted to enlarge the surface area for effective Ba2+ ion diffusion during the perovskite conversion process from TiO2 to BaTiO3. The final structure of perovskite BaTiO3 NBA was found to exhibit a feasible piezoelectric response of 3.56 nm with a clear phase change of 180° from the single BaTiO3 bundle, by point piezoelectric forced microscopy (PFM) analysis. Consequently, highly piezoelectric NBA could be a promising nanostructure for various nanoscale electronic devices.
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Affiliation(s)
- Seon-Min Jang
- Department of Chemical Engineering, Dong-A University, Republic of Korea
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Mierzwa M, Lamouroux E, Walcarius A, Etienne M. Porous and Transparent Metal-oxide Electrodes : Preparation Methods and Electroanalytical Application Prospects. ELECTROANAL 2018. [DOI: 10.1002/elan.201800020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Maciej Mierzwa
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS -; Université de Lorraine; 405 rue de Vandoeuvre F-54600 Villers-lès-Nancy France
- Laboratoire Structure et Réactivité des Systèmes Moléculaires Complexes (SRSMC), UMR7565 CNRS -; Université de Lorraine, BP 239; F-54506 Vandoeuvre-lès-Nancy cedex France
| | - Emmanuel Lamouroux
- Laboratoire Structure et Réactivité des Systèmes Moléculaires Complexes (SRSMC), UMR7565 CNRS -; Université de Lorraine, BP 239; F-54506 Vandoeuvre-lès-Nancy cedex France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS -; Université de Lorraine; 405 rue de Vandoeuvre F-54600 Villers-lès-Nancy France
| | - Mathieu Etienne
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR7564 CNRS -; Université de Lorraine; 405 rue de Vandoeuvre F-54600 Villers-lès-Nancy France
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Ma S, Qiao W, Cheng T, Zhang B, Yao J, Alsaedi A, Hayat T, Ding Y, Tan Z, Dai S. Optical-Electrical-Chemical Engineering of PEDOT:PSS by Incorporation of Hydrophobic Nafion for Efficient and Stable Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:3902-3911. [PMID: 29308652 DOI: 10.1021/acsami.7b19053] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In PIN-type perovskite solar cells (PSCs), the hydroscopicity and acidity of the poly(3,4-ethylenedioxythiophene)-poly(styrene-sulfonate) (PEDOT:PSS) hole transport layer (HTL) have critical influences on the device stability. To eliminate these problems, Nafion, the hydrophobic perfluorosulfonic copolymer, is incorporated into PEDOT:PSS by a simple spin-coating process. For the modified film, Nafion/PSSH (poly(styrene sulfonate) acid) acts as an electron-blocking layer on the surface and the PEDOT-rich domain tends to gather into larger particles with better interchain charge transfer inside the film. Consequently, the modified PEDOT:PSS HTL shows enhanced conductivity and light transmittance as well as more favorable work function, ending up with the increased short-circuit current density (Jsc) and open-circuit voltage (Voc) of the device. Finally, PSCs with Nafion-modified HTLs achieve the best power conversion efficiency of 16.72%, with 23.76% improvement compared with PEDOT:PSS-only devices (13.51%). Most importantly, the device stability is obviously enhanced because of the hydrophobicity and chemical and mechanical stability of the Nafion polymer that is enriched on the surface of the PEDOT:PSS film.
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Affiliation(s)
- Shuang Ma
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University , Beijing 102206, China
| | - Wenyuan Qiao
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University , Beijing 102206, China
| | - Tai Cheng
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University , Beijing 102206, China
| | - Bing Zhang
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University , Beijing 102206, China
| | - Jianxi Yao
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University , Beijing 102206, China
| | - Ahmed Alsaedi
- NAAM Research Group, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
| | - Tasawar Hayat
- Department of Mathematics, Quaid-I-Azam University , Islamabad 44000, Pakistan
- NAAM Research Group, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
| | - Yong Ding
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University , Beijing 102206, China
| | - Zhan'ao Tan
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University , Beijing 102206, China
| | - Songyuan Dai
- Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University , Beijing 102206, China
- NAAM Research Group, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
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Ko Y, Kim YR, Jang H, Lee C, Kang MG, Jun Y. Electrodeposition of SnO2 on FTO and its Application in Planar Heterojunction Perovskite Solar Cells as an Electron Transport Layer. NANOSCALE RESEARCH LETTERS 2017; 12:498. [PMID: 28815449 PMCID: PMC5559410 DOI: 10.1186/s11671-017-2247-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 07/23/2017] [Indexed: 05/13/2023]
Abstract
We report the performance of perovskite solar cells (PSCs) with an electron transport layer (ETL) consisting of a SnO2 thin film obtained by electrochemical deposition. The surface morphology and thickness of the electrodeposited SnO2 films were closely related to electrochemical process conditions, i.e., the applied voltage, bath temperature, and deposition time. We investigated the performance of PSCs based on the SnO2 films. Remarkably, the experimental factors that are closely associated with the photovoltaic performance were strongly affected by the SnO2 ETLs. Finally, to enhance the photovoltaic performance, the surfaces of the SnO2 films were modified slightly by TiCl4 hydrolysis. This process improves charge extraction and suppresses charge recombination.
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Affiliation(s)
- Yohan Ko
- Department of Materials Chemistry and Engineering, Department of Energy Engineering, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Yeong Rim Kim
- Department of Materials Chemistry and Engineering, Department of Energy Engineering, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Haneol Jang
- Department of Materials Chemistry and Engineering, Department of Energy Engineering, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Chanyong Lee
- Department of Materials Chemistry and Engineering, Department of Energy Engineering, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Man Gu Kang
- IT Materials Technology Research Section, ETRI, Gajeongro 218, Yuseong, Daejeon, Republic of Korea
| | - Yongseok Jun
- Department of Materials Chemistry and Engineering, Department of Energy Engineering, Konkuk University, Seoul, 143-701, Republic of Korea.
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Supercapacitive performances of MnO 2 nanostructures grown on hierarchical Cu nano leaves via electrodeposition. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.01.044] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Lee KT, Liu DM, Lu SY. SnFe2
O4
Nanocrystals as Highly Efficient Catalysts for Hydrogen-Peroxide Sensing. Chemistry 2016; 22:10877-83. [DOI: 10.1002/chem.201504881] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Kuan-Ting Lee
- Department of Chemical Engineering; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Dai-Ming Liu
- Department of Chemical Engineering; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Shih-Yuan Lu
- Department of Chemical Engineering; National Tsing Hua University; Hsinchu 30013 Taiwan
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Lo Y, Lee K, Liang Y, Liu D, Matsushita N, Ikoma T, Lu S. Three‐Dimensionally Extended Host Electrodes for Biosensor Applications. ChemElectroChem 2016. [DOI: 10.1002/celc.201500524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yu‐Chun Lo
- Department of Chemical Engineering National Tsing Hua University Hsinchu 30013 Taiwan
| | - Kuan‐Ting Lee
- Department of Chemical Engineering National Tsing Hua University Hsinchu 30013 Taiwan
| | - Yi‐Ching Liang
- Department of Chemical Engineering National Tsing Hua University Hsinchu 30013 Taiwan
| | - Dai‐Ming Liu
- Department of Chemical Engineering National Tsing Hua University Hsinchu 30013 Taiwan
| | - Nobuhiro Matsushita
- Materials and Structures Laboratory Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Toshiyuki Ikoma
- Department of Inorganic Materials Tokyo Institute of Technology Tokyo 152-8550 Japan
| | - Shih‐Yuan Lu
- Department of Chemical Engineering National Tsing Hua University Hsinchu 30013 Taiwan
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Li C, Wang F, Xu J, Yao J, Zhang B, Zhang C, Xiao M, Dai S, Li Y, Tan Z. Efficient perovskite/fullerene planar heterojunction solar cells with enhanced charge extraction and suppressed charge recombination. NANOSCALE 2015; 7:9771-8. [PMID: 25962479 DOI: 10.1039/c4nr06240j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Alcohol soluble titanium chelate TIPD (titanium (diisopropoxide) bis(2,4-pentanedionate)) was used as an electron transporting layer to form an ohmic contact with the negative electrode, aiming to enhance the charge extraction and suppress the charge recombination for high performance CH3NH3PbI3/PCBM-based PHJ perovskite solar cells. The TIPD layer shows excellent suitability to CH3NH3PbI3 perovskite synthesized by different methods. For one-step synthesized CH3NH3PbI3, the power conversion efficiency (PCE) of the device with the TIPD buffer reaches 8.75%, with a nearly 33% increase in comparison with the device without the buffer layer (6.58%). For two-step synthesized CH3NH3PbI3, an open-circuit voltage (Voc) of 0.89 V, a short-circuit current density (Jsc) of 22.57 mA cm(-2), and a fill factor (FF) of 64.5%, corresponding to a PCE of 12.95% for the device with a TIPD buffer layer were achieved, which is among the best performances reported in the literature for CH3NH3PbI3/PCBM-based PHJ perovskite solar cells.
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Affiliation(s)
- Cong Li
- Beijing Key Laboratory of Novel Thin Film Solar Cells, North China Electric Power University, Beijing 102206, China.
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Correa Baena JP, Agrios AG. Transparent conducting aerogels of antimony-doped tin oxide. ACS APPLIED MATERIALS & INTERFACES 2014; 6:19127-19134. [PMID: 25296169 DOI: 10.1021/am505115x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Bulk antimony-doped tin oxide aerogels are prepared by epoxide-initiated sol-gel processing. Tin and antimony precursors are dissolved in ethanol and water, respectively, and propylene oxide is added to cause rapid gelation of the sol, which is then dried supercritically. The Sb:Sn precursor mole ratio is varied from 0 to 30% to optimize the material conductivity and absorbance. The materials are characterized by electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy (XPS), nitrogen physisorption analysis, a four-point probe resistivity measurement, and UV-vis diffuse reflectance spectroscopy. The samples possess morphology typical of aerogels without significant change with the amount of doping. Calcination at 450 °C produces a cassiterite crystal structure in all aerogel samples. Introduction of Sb at 15% in the precursor (7.6% Sb by XPS) yields a resistivity more than 3 orders of magnitude lower than an undoped SnO2 aerogel. Calcination at 800 °C reduces the resistivity by an additional 2 orders of magnitude to 30 Ω·cm, but results in a significant decrease in surface area and pore volume.
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Affiliation(s)
- Juan Pablo Correa Baena
- Civil and Environmental Engineering and ‡Center for Clean Energy Engineering, University of Connecticut , Storrs, Connecticut 06269, United States
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Lee KT, Liu DM, Liang YY, Matsushita N, Ikoma T, Lu SY. Porous fluorine-doped tin oxide as a promising substrate for electrochemical biosensors—demonstration in hydrogen peroxide sensing. J Mater Chem B 2014; 2:7779-7784. [DOI: 10.1039/c4tb01191k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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