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Star-shaped triarylamine-based hole-transport materials in perovskite solar cells

Rosinda Fuentes Pineda, Yaroslav Zems, Joel Troughton, Muhammad R. Niazi, Dmitrii F. Perepichka, Trystan Watson Orcid Logo, Neil Robertson

Sustainable Energy & Fuels, Volume: 4, Issue: 2, Pages: 779 - 787

Swansea University Authors: Joel Troughton, Trystan Watson Orcid Logo

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DOI (Published version): 10.1039/c9se00366e

Abstract

Two novel star-shaped triarylamine-based hole transport materials with triphenylamine (STR1), or a partially oxygen-bridged triphenylamine (STR0), as core and para-substituted triphenylamine side arms were synthesized, fully characterized and studied in perovskite solar cells. Their thermal, optical...

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Published in: Sustainable Energy & Fuels
ISSN: 2398-4902
Published: Royal Society of Chemistry (RSC) 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa52907
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first_indexed 2019-11-29T13:14:03Z
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spelling 2020-12-14T16:30:06.2763963 v2 52907 2019-11-29 Star-shaped triarylamine-based hole-transport materials in perovskite solar cells dc3109d39ae4673951d8b2d9cd0c9df6 Joel Troughton Joel Troughton true false a210327b52472cfe8df9b8108d661457 0000-0002-8015-1436 Trystan Watson Trystan Watson true false 2019-11-29 Two novel star-shaped triarylamine-based hole transport materials with triphenylamine (STR1), or a partially oxygen-bridged triphenylamine (STR0), as core and para-substituted triphenylamine side arms were synthesized, fully characterized and studied in perovskite solar cells. Their thermal, optical, electrochemical and charge transport properties were examined and compared in the context of their molecular structure. Due to its more planar configuration, STR0 showed a red-shifted absorption in comparison with STR1. STR0 also forms a more stable amorphous glassy state and showed higher glass transition temperature than STR1 and spiro-OMeTAD. These HTMs were tested in perovskite solar cells using a device configuration of FTO/bl-TiO2/mp-TiO2/CH3NH3PbI3/HTM/Au showing a power conversion efficiency of 13.3% for STR0 and 11.5% for STR1. The STR0-based devices showed higher fill factor and better reproducibility than spiro-OMeTAD-based cells. Without dopant additives, solar cells based on STR0 exhibited a good photocurrent density of 16.63 mA cm−2 and the efficiency improved from a starting PCE of 3.9% to 6.6% after two weeks of storage. Journal Article Sustainable Energy & Fuels 4 2 779 787 Royal Society of Chemistry (RSC) 2398-4902 1 2 2020 2020-02-01 10.1039/c9se00366e COLLEGE NANME COLLEGE CODE Swansea University 2020-12-14T16:30:06.2763963 2019-11-29T10:56:22.7128859 College of Engineering Engineering Rosinda Fuentes Pineda 1 Yaroslav Zems 2 Joel Troughton 3 Muhammad R. Niazi 4 Dmitrii F. Perepichka 5 Trystan Watson 0000-0002-8015-1436 6 Neil Robertson 7 52907__15995__e764c02581bb45ba952c87723fa7bdc5.pdf pineda2019.pdf 2019-11-29T10:58:48.6412964 Output 827119 application/pdf Version of Record true This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. true eng http://creativecommons.org/licenses/by-nc/3.0/
title Star-shaped triarylamine-based hole-transport materials in perovskite solar cells
spellingShingle Star-shaped triarylamine-based hole-transport materials in perovskite solar cells
Joel Troughton
Trystan Watson
title_short Star-shaped triarylamine-based hole-transport materials in perovskite solar cells
title_full Star-shaped triarylamine-based hole-transport materials in perovskite solar cells
title_fullStr Star-shaped triarylamine-based hole-transport materials in perovskite solar cells
title_full_unstemmed Star-shaped triarylamine-based hole-transport materials in perovskite solar cells
title_sort Star-shaped triarylamine-based hole-transport materials in perovskite solar cells
author_id_str_mv dc3109d39ae4673951d8b2d9cd0c9df6
a210327b52472cfe8df9b8108d661457
author_id_fullname_str_mv dc3109d39ae4673951d8b2d9cd0c9df6_***_Joel Troughton
a210327b52472cfe8df9b8108d661457_***_Trystan Watson
author Joel Troughton
Trystan Watson
author2 Rosinda Fuentes Pineda
Yaroslav Zems
Joel Troughton
Muhammad R. Niazi
Dmitrii F. Perepichka
Trystan Watson
Neil Robertson
format Journal article
container_title Sustainable Energy & Fuels
container_volume 4
container_issue 2
container_start_page 779
publishDate 2020
institution Swansea University
issn 2398-4902
doi_str_mv 10.1039/c9se00366e
publisher Royal Society of Chemistry (RSC)
college_str College of Engineering
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hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
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description Two novel star-shaped triarylamine-based hole transport materials with triphenylamine (STR1), or a partially oxygen-bridged triphenylamine (STR0), as core and para-substituted triphenylamine side arms were synthesized, fully characterized and studied in perovskite solar cells. Their thermal, optical, electrochemical and charge transport properties were examined and compared in the context of their molecular structure. Due to its more planar configuration, STR0 showed a red-shifted absorption in comparison with STR1. STR0 also forms a more stable amorphous glassy state and showed higher glass transition temperature than STR1 and spiro-OMeTAD. These HTMs were tested in perovskite solar cells using a device configuration of FTO/bl-TiO2/mp-TiO2/CH3NH3PbI3/HTM/Au showing a power conversion efficiency of 13.3% for STR0 and 11.5% for STR1. The STR0-based devices showed higher fill factor and better reproducibility than spiro-OMeTAD-based cells. Without dopant additives, solar cells based on STR0 exhibited a good photocurrent density of 16.63 mA cm−2 and the efficiency improved from a starting PCE of 3.9% to 6.6% after two weeks of storage.
published_date 2020-02-01T04:06:58Z
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