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Performance-Enhancing Sulfur-Doped TiO2 Photoanodes for Perovskite Solar Cells
Applied Sciences, Volume: 12, Issue: 1, Start page: 429
Swansea University Author:
Matthew Davies
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DOI (Published version): 10.3390/app12010429
Abstract
High-performance electron transport layer (ETL) anode generally needs to form a uniform dense layer with suitable conduction band position and good electron transport properties. The TiO2 photoanode is primarily applied as the ETL because it is low-cost, has diverse thin-film preparation methods and...
Published in: | Applied Sciences |
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ISSN: | 2076-3417 |
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MDPI AG
2022
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URI: | https://cronfa.swan.ac.uk/Record/cronfa59089 |
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2022-01-05T16:26:57.6461348 v2 59089 2022-01-05 Performance-Enhancing Sulfur-Doped TiO2 Photoanodes for Perovskite Solar Cells 4ad478e342120ca3434657eb13527636 0000-0003-2595-5121 Matthew Davies Matthew Davies true false 2022-01-05 CHEG High-performance electron transport layer (ETL) anode generally needs to form a uniform dense layer with suitable conduction band position and good electron transport properties. The TiO2 photoanode is primarily applied as the ETL because it is low-cost, has diverse thin-film preparation methods and has good chemical stability. However, pure TiO2 is not an ideal ETL because it lacks several important criteria, such as low conductivity and conduction band mismatch with compositional-tailored perovskite. Thus, TiO2 is an inefficient photo-anode or ETL for high-performance perovskite devices. In this study, sulfur as dopant in the TiO2 photo-anode thin film is used to fabricate solid-state planar perovskite solar cells in relatively high humidity (40−50%). The deposited S-doped thin film improves the power conversion efficiency (PCE) of the device to 6.0%, with the un-doped TiO2 producing a PCE of 5.1% in the best device. Improvement in PCE is due to lower recombination and higher photocurrent density, resulting in 18% increase in PCE (5.1−6.0%). Journal Article Applied Sciences 12 1 429 MDPI AG 2076-3417 perovskite solar cell, electron transporting material, TiO2 photoanode, sulfur doping, photo conversion efficiency 3 1 2022 2022-01-03 10.3390/app12010429 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University Universiti Kebangsaan Malaysia (UKM) under the Dana Impak Perdana (DIP-2019-025); UKM for the PhD scholarship under the Skim Zamalah Yayasan Canselor 2022-01-05T16:26:57.6461348 2022-01-05T16:18:06.0893714 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Muhazri Abd Mutalib 1 Norasikin Ahmad Ludin 2 Mohd Sukor Su’ait 3 Matthew Davies 0000-0003-2595-5121 4 Suhaila Sepeai 5 Mohd Asri Mat Teridi 6 Mohamad Firdaus Mohamad Noh 7 Mohd Adib Ibrahim 8 59089__22030__aa9986fb9b334453b34b1c112d0bbce0.pdf 59089.pdf 2022-01-05T16:20:49.7131510 Output 3177578 application/pdf Version of Record true © 2022 by the authors. This is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license true eng https://creativecommons.org/licenses/by/4.0/ |
title |
Performance-Enhancing Sulfur-Doped TiO2 Photoanodes for Perovskite Solar Cells |
spellingShingle |
Performance-Enhancing Sulfur-Doped TiO2 Photoanodes for Perovskite Solar Cells Matthew Davies |
title_short |
Performance-Enhancing Sulfur-Doped TiO2 Photoanodes for Perovskite Solar Cells |
title_full |
Performance-Enhancing Sulfur-Doped TiO2 Photoanodes for Perovskite Solar Cells |
title_fullStr |
Performance-Enhancing Sulfur-Doped TiO2 Photoanodes for Perovskite Solar Cells |
title_full_unstemmed |
Performance-Enhancing Sulfur-Doped TiO2 Photoanodes for Perovskite Solar Cells |
title_sort |
Performance-Enhancing Sulfur-Doped TiO2 Photoanodes for Perovskite Solar Cells |
author_id_str_mv |
4ad478e342120ca3434657eb13527636 |
author_id_fullname_str_mv |
4ad478e342120ca3434657eb13527636_***_Matthew Davies |
author |
Matthew Davies |
author2 |
Muhazri Abd Mutalib Norasikin Ahmad Ludin Mohd Sukor Su’ait Matthew Davies Suhaila Sepeai Mohd Asri Mat Teridi Mohamad Firdaus Mohamad Noh Mohd Adib Ibrahim |
format |
Journal article |
container_title |
Applied Sciences |
container_volume |
12 |
container_issue |
1 |
container_start_page |
429 |
publishDate |
2022 |
institution |
Swansea University |
issn |
2076-3417 |
doi_str_mv |
10.3390/app12010429 |
publisher |
MDPI AG |
college_str |
Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
department_str |
School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering |
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1 |
active_str |
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description |
High-performance electron transport layer (ETL) anode generally needs to form a uniform dense layer with suitable conduction band position and good electron transport properties. The TiO2 photoanode is primarily applied as the ETL because it is low-cost, has diverse thin-film preparation methods and has good chemical stability. However, pure TiO2 is not an ideal ETL because it lacks several important criteria, such as low conductivity and conduction band mismatch with compositional-tailored perovskite. Thus, TiO2 is an inefficient photo-anode or ETL for high-performance perovskite devices. In this study, sulfur as dopant in the TiO2 photo-anode thin film is used to fabricate solid-state planar perovskite solar cells in relatively high humidity (40−50%). The deposited S-doped thin film improves the power conversion efficiency (PCE) of the device to 6.0%, with the un-doped TiO2 producing a PCE of 5.1% in the best device. Improvement in PCE is due to lower recombination and higher photocurrent density, resulting in 18% increase in PCE (5.1−6.0%). |
published_date |
2022-01-03T04:16:07Z |
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1763754081109671936 |
score |
11.021648 |