Inorganic hole transporting materials towards stable perovskite solar cells

Organic lead halide perovskite solar cells have attracted extensive attentions and emerged as one of the most promising candidates for the future generation of solar cells. However, commonly employed organic hole transport materials in perovskite based solar cells are expensive and have low hole mo...

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Main Author: Zhao, Anqi
Other Authors: Lydia Helena Wong
Format: Final Year Project
Language:English
Published: 2015
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Online Access:http://hdl.handle.net/10356/62494
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-624942023-03-04T15:39:17Z Inorganic hole transporting materials towards stable perovskite solar cells Zhao, Anqi Lydia Helena Wong School of Materials Science and Engineering Energetics Research Institute DRNTU::Engineering::Materials::Functional materials Organic lead halide perovskite solar cells have attracted extensive attentions and emerged as one of the most promising candidates for the future generation of solar cells. However, commonly employed organic hole transport materials in perovskite based solar cells are expensive and have low hole mobility. Meanwhile, current research mainly focuses on photo current conversion efficiency, and the stability of perovskite solar cells hasn’t been widely addressed. In order to explore a substituent for the conventional organic hole transport material, we have identified P3HT functionalized carbon nanotube as a possible alternative. By embedding the P3HT@SWNT hybrid material in polymethyl methacrylate (PMMA) matrix, we have achieved an impressive power conversion efficiency of 8.7%, which is comparable to the champion cell of spiro-OMeTAD made from the same under-stacking structure. It also shows higher incident photon to current conversion efficiency at wavelength above 500 nm. Meanwhile, the devices exhibited excellent stability under both heat and moisture attack condition showing no degradation of devices’ performance compared with significant degradation of spiro-OMeTAD and P3HT cells. By reducing the loss of functionalized SWNT during washing procedure, it is possible to mass-produce the perovskite solar cells using P3HT@SWNT as an effective hole transport material. Bachelor of Engineering (Materials Engineering) 2015-04-09T06:50:47Z 2015-04-09T06:50:47Z 2015 2015 Final Year Project (FYP) http://hdl.handle.net/10356/62494 en Nanyang Technological University 42 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Materials::Functional materials
spellingShingle DRNTU::Engineering::Materials::Functional materials
Zhao, Anqi
Inorganic hole transporting materials towards stable perovskite solar cells
description Organic lead halide perovskite solar cells have attracted extensive attentions and emerged as one of the most promising candidates for the future generation of solar cells. However, commonly employed organic hole transport materials in perovskite based solar cells are expensive and have low hole mobility. Meanwhile, current research mainly focuses on photo current conversion efficiency, and the stability of perovskite solar cells hasn’t been widely addressed. In order to explore a substituent for the conventional organic hole transport material, we have identified P3HT functionalized carbon nanotube as a possible alternative. By embedding the P3HT@SWNT hybrid material in polymethyl methacrylate (PMMA) matrix, we have achieved an impressive power conversion efficiency of 8.7%, which is comparable to the champion cell of spiro-OMeTAD made from the same under-stacking structure. It also shows higher incident photon to current conversion efficiency at wavelength above 500 nm. Meanwhile, the devices exhibited excellent stability under both heat and moisture attack condition showing no degradation of devices’ performance compared with significant degradation of spiro-OMeTAD and P3HT cells. By reducing the loss of functionalized SWNT during washing procedure, it is possible to mass-produce the perovskite solar cells using P3HT@SWNT as an effective hole transport material.
author2 Lydia Helena Wong
author_facet Lydia Helena Wong
Zhao, Anqi
format Final Year Project
author Zhao, Anqi
author_sort Zhao, Anqi
title Inorganic hole transporting materials towards stable perovskite solar cells
title_short Inorganic hole transporting materials towards stable perovskite solar cells
title_full Inorganic hole transporting materials towards stable perovskite solar cells
title_fullStr Inorganic hole transporting materials towards stable perovskite solar cells
title_full_unstemmed Inorganic hole transporting materials towards stable perovskite solar cells
title_sort inorganic hole transporting materials towards stable perovskite solar cells
publishDate 2015
url http://hdl.handle.net/10356/62494
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