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Enhancing the Performance of the Mesoporous TiO2 Film in Printed Perovskite Photovoltaics through High-Speed Imaging and Ink Rheology Techniques

Sarah-Jane Potts Orcid Logo, Rebecca Bolton Orcid Logo, Tom Dunlop Orcid Logo, Kathryn Lacey, Carys Worsley, Trystan Watson Orcid Logo, Eifion Jewell Orcid Logo

Advanced Functional Materials

Swansea University Authors: Sarah-Jane Potts Orcid Logo, Tom Dunlop Orcid Logo, Kathryn Lacey, Carys Worsley, Trystan Watson Orcid Logo, Eifion Jewell Orcid Logo

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DOI (Published version): 10.1002/adfm.202401959

Abstract

Mesoscopic carbon-based perovskite solar cells (C-PSCs) have the potential to be manufactured at an industrial scale by utilizing screen-printing, a simple, affordable, and commercially mature process. As such, many recent publications have focused on enhancing performance through modifying cell arc...

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Published in: Advanced Functional Materials
ISSN: 1616-301X 1616-3028
Published: Wiley 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa66570
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spelling v2 66570 2024-06-03 Enhancing the Performance of the Mesoporous TiO2 Film in Printed Perovskite Photovoltaics through High-Speed Imaging and Ink Rheology Techniques 8c536622ba65fa1e04912d0e2ede88f7 0000-0003-0208-2364 Sarah-Jane Potts Sarah-Jane Potts true false 809395460ab1e6b53a906b136d919c41 0000-0002-5851-8713 Tom Dunlop Tom Dunlop true false a482d8085289c43024bb5ccaa5bfde3d Kathryn Lacey Kathryn Lacey true false e74e27838a54d9df1fe7c5ee2cb8a126 Carys Worsley Carys Worsley true false a210327b52472cfe8df9b8108d661457 0000-0002-8015-1436 Trystan Watson Trystan Watson true false 13dc152c178d51abfe0634445b0acf07 0000-0002-6894-2251 Eifion Jewell Eifion Jewell true false 2024-06-03 Mesoscopic carbon-based perovskite solar cells (C-PSCs) have the potential to be manufactured at an industrial scale by utilizing screen-printing, a simple, affordable, and commercially mature process. As such, many recent publications have focused on enhancing performance through modifying cell architecture and perovskite chemistries. This work examines how ink rheology can be tuned to optimize cell performance through reducing the occurrence of common print defects to create higher quality m-TiO2 films. Inks with different solvent dilutions and rheological profiles are assessed using high-speed imaging through the screen-printing visualization (SPV) technique, to investigate the impact of the viscosity and elasticity on ink separation mechanisms. The resultant film quality and its influence on device performances are then assessed. Ink separation lengths are minimized, and the formation of filaments ceases during printing, leading to improved TiO2 film topography and homogenous infiltration of the perovskite precursor. Consequently, PCE is improved by over 10% of the original efficiency in cells and 224 cm2 active area modules due to enhanced Voc and FF. These results not only provide key insights into tailoring ink rheology, to achieve improved print homogeneity and higher performing cells, but also aid further work on enhancing the performance of other screen-printed functional films. Journal Article Advanced Functional Materials 0 Wiley 1616-301X 1616-3028 high-speed imaging; perovskite; photovoltaics; printed electronics; rheology; screen-printing; surface characterization; TiO2 9 4 2024 2024-04-09 10.1002/adfm.202401959 COLLEGE NANME COLLEGE CODE Swansea University SU Library paid the OA fee (TA Institutional Deal) EPSRC. Grant Numbers: EP/M028267/ 1, EP/N020863/1; European Regional Development Fund; Welsh Government. Grant Number: 80708 2024-07-03T15:51:07.5874551 2024-06-03T11:34:56.7392390 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Sarah-Jane Potts 0000-0003-0208-2364 1 Rebecca Bolton 0000-0003-1183-2649 2 Tom Dunlop 0000-0002-5851-8713 3 Kathryn Lacey 4 Carys Worsley 5 Trystan Watson 0000-0002-8015-1436 6 Eifion Jewell 0000-0002-6894-2251 7 66570__30519__8a4b651e898c4f6c97b6cfa042a1451c.pdf 66570_VoR.pdf 2024-06-03T11:38:52.4936055 Output 4011632 application/pdf Version of Record true © 2024 The Authors. This is an open access article under the terms of the Creative Commons Attribution License. true eng http://creativecommons.org/licenses/by/4.0/
title Enhancing the Performance of the Mesoporous TiO2 Film in Printed Perovskite Photovoltaics through High-Speed Imaging and Ink Rheology Techniques
spellingShingle Enhancing the Performance of the Mesoporous TiO2 Film in Printed Perovskite Photovoltaics through High-Speed Imaging and Ink Rheology Techniques
Sarah-Jane Potts
Tom Dunlop
Kathryn Lacey
Carys Worsley
Trystan Watson
Eifion Jewell
title_short Enhancing the Performance of the Mesoporous TiO2 Film in Printed Perovskite Photovoltaics through High-Speed Imaging and Ink Rheology Techniques
title_full Enhancing the Performance of the Mesoporous TiO2 Film in Printed Perovskite Photovoltaics through High-Speed Imaging and Ink Rheology Techniques
title_fullStr Enhancing the Performance of the Mesoporous TiO2 Film in Printed Perovskite Photovoltaics through High-Speed Imaging and Ink Rheology Techniques
title_full_unstemmed Enhancing the Performance of the Mesoporous TiO2 Film in Printed Perovskite Photovoltaics through High-Speed Imaging and Ink Rheology Techniques
title_sort Enhancing the Performance of the Mesoporous TiO2 Film in Printed Perovskite Photovoltaics through High-Speed Imaging and Ink Rheology Techniques
author_id_str_mv 8c536622ba65fa1e04912d0e2ede88f7
809395460ab1e6b53a906b136d919c41
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e74e27838a54d9df1fe7c5ee2cb8a126
a210327b52472cfe8df9b8108d661457
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author_id_fullname_str_mv 8c536622ba65fa1e04912d0e2ede88f7_***_Sarah-Jane Potts
809395460ab1e6b53a906b136d919c41_***_Tom Dunlop
a482d8085289c43024bb5ccaa5bfde3d_***_Kathryn Lacey
e74e27838a54d9df1fe7c5ee2cb8a126_***_Carys Worsley
a210327b52472cfe8df9b8108d661457_***_Trystan Watson
13dc152c178d51abfe0634445b0acf07_***_Eifion Jewell
author Sarah-Jane Potts
Tom Dunlop
Kathryn Lacey
Carys Worsley
Trystan Watson
Eifion Jewell
author2 Sarah-Jane Potts
Rebecca Bolton
Tom Dunlop
Kathryn Lacey
Carys Worsley
Trystan Watson
Eifion Jewell
format Journal article
container_title Advanced Functional Materials
container_volume 0
publishDate 2024
institution Swansea University
issn 1616-301X
1616-3028
doi_str_mv 10.1002/adfm.202401959
publisher Wiley
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description Mesoscopic carbon-based perovskite solar cells (C-PSCs) have the potential to be manufactured at an industrial scale by utilizing screen-printing, a simple, affordable, and commercially mature process. As such, many recent publications have focused on enhancing performance through modifying cell architecture and perovskite chemistries. This work examines how ink rheology can be tuned to optimize cell performance through reducing the occurrence of common print defects to create higher quality m-TiO2 films. Inks with different solvent dilutions and rheological profiles are assessed using high-speed imaging through the screen-printing visualization (SPV) technique, to investigate the impact of the viscosity and elasticity on ink separation mechanisms. The resultant film quality and its influence on device performances are then assessed. Ink separation lengths are minimized, and the formation of filaments ceases during printing, leading to improved TiO2 film topography and homogenous infiltration of the perovskite precursor. Consequently, PCE is improved by over 10% of the original efficiency in cells and 224 cm2 active area modules due to enhanced Voc and FF. These results not only provide key insights into tailoring ink rheology, to achieve improved print homogeneity and higher performing cells, but also aid further work on enhancing the performance of other screen-printed functional films.
published_date 2024-04-09T15:51:06Z
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