Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells

Three dimensional (3-D) flower-shaped SnO2-TiO2 nano-structure has been synthesized by electrospinning and incorporated on top of sol-gel ZnO ETL to fabricate highly efficient (highest efficiency: 17.25%) triple-cation (methyl ammonium, formamidinium and rubidium cations) based perovskite solar cell...

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Main Authors:	Mahmud, Md Arafat, Elumalai, Naveen Kumar, Pal, Bhupendar, Rajan, Jose, Upama, Mushfika Baishakhi, Wang, Dian, Goncales, Vinicius R., Xu, Cheng, Haque, Faiazul, Uddin, Ashraf
Format:	Article
Language:	English
Published:	Elsevier 2018
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/23649/ http://umpir.ump.edu.my/id/eprint/23649/ http://umpir.ump.edu.my/id/eprint/23649/ http://umpir.ump.edu.my/id/eprint/23649/1/Electrospun%203D%20composite%20nano.pdf

id	ump-23649
recordtype	eprints
spelling	ump-236492019-01-24T03:43:54Z http://umpir.ump.edu.my/id/eprint/23649/ Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells Mahmud, Md Arafat Elumalai, Naveen Kumar Pal, Bhupendar Rajan, Jose Upama, Mushfika Baishakhi Wang, Dian Goncales, Vinicius R. Xu, Cheng Haque, Faiazul Uddin, Ashraf TK Electrical engineering. Electronics Nuclear engineering Three dimensional (3-D) flower-shaped SnO2-TiO2 nano-structure has been synthesized by electrospinning and incorporated on top of sol-gel ZnO ETL to fabricate highly efficient (highest efficiency: 17.25%) triple-cation (methyl ammonium, formamidinium and rubidium cations) based perovskite solar cell (PSC). The flower-based PSCs demonstrate superior photovoltaic performance compared to control ZnO or one-dimensional (1-D) fiber-shaped nano-structure ETL based devices. Nano-structured ETLs passivate the interstitial trap sites in pristine ZnO by intercalation of metal atoms in host ZnO lattice matrix and increase the n-type conductivity of the (nano-structured) ETL films by reducing the functional groups on ZnO surface. The accumulated ions at the perovskite/ETL interface are also welldistributed and hence the accumulation capacitance is significantly reduced in nano-structured ETL based PSCs, due to the branch-structured ETL network. Moreover, the nano-flower based PSC demonstrates superior charge transfer property, compared to nano-fiber based PSC owing to enhanced material crystallinity and higher effective surface area of 3-D nano-flower network, with respect to 1-D nano-fiber structure. The photo-current hysteretic phenomena are also most suppressed in nano-flower based PSC, due to mitigated electrode polarization mechanism in it. Adding to the merits, PSCs incorporating nanoflower ETL demonstrate enhanced device stability compared to the control devices, retaining about 92% of its initial efficiency even after a month. The enhanced device stability with nano-flower based PSC is contributed by the lower hydrophilicity, lower extent of functional surface hydroxyl group and lower content of vacant interstitial trap sites of the respective ETL film. Elsevier 2018-09-15 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/23649/1/Electrospun%203D%20composite%20nano.pdf Mahmud, Md Arafat and Elumalai, Naveen Kumar and Pal, Bhupendar and Rajan, Jose and Upama, Mushfika Baishakhi and Wang, Dian and Goncales, Vinicius R. and Xu, Cheng and Haque, Faiazul and Uddin, Ashraf (2018) Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells. Electrochimica Acta, 289. pp. 459-473. ISSN 0013-4686 https://doi.org/10.1016/j.electacta.2018.09.097 https://doi.org/10.1016/j.electacta.2018.09.097
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Mahmud, Md Arafat Elumalai, Naveen Kumar Pal, Bhupendar Rajan, Jose Upama, Mushfika Baishakhi Wang, Dian Goncales, Vinicius R. Xu, Cheng Haque, Faiazul Uddin, Ashraf Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells
description	Three dimensional (3-D) flower-shaped SnO2-TiO2 nano-structure has been synthesized by electrospinning and incorporated on top of sol-gel ZnO ETL to fabricate highly efficient (highest efficiency: 17.25%) triple-cation (methyl ammonium, formamidinium and rubidium cations) based perovskite solar cell (PSC). The flower-based PSCs demonstrate superior photovoltaic performance compared to control ZnO or one-dimensional (1-D) fiber-shaped nano-structure ETL based devices. Nano-structured ETLs passivate the interstitial trap sites in pristine ZnO by intercalation of metal atoms in host ZnO lattice matrix and increase the n-type conductivity of the (nano-structured) ETL films by reducing the functional groups on ZnO surface. The accumulated ions at the perovskite/ETL interface are also welldistributed and hence the accumulation capacitance is significantly reduced in nano-structured ETL based PSCs, due to the branch-structured ETL network. Moreover, the nano-flower based PSC demonstrates superior charge transfer property, compared to nano-fiber based PSC owing to enhanced material crystallinity and higher effective surface area of 3-D nano-flower network, with respect to 1-D nano-fiber structure. The photo-current hysteretic phenomena are also most suppressed in nano-flower based PSC, due to mitigated electrode polarization mechanism in it. Adding to the merits, PSCs incorporating nanoflower ETL demonstrate enhanced device stability compared to the control devices, retaining about 92% of its initial efficiency even after a month. The enhanced device stability with nano-flower based PSC is contributed by the lower hydrophilicity, lower extent of functional surface hydroxyl group and lower content of vacant interstitial trap sites of the respective ETL film.
format	Article
author	Mahmud, Md Arafat Elumalai, Naveen Kumar Pal, Bhupendar Rajan, Jose Upama, Mushfika Baishakhi Wang, Dian Goncales, Vinicius R. Xu, Cheng Haque, Faiazul Uddin, Ashraf
author_facet	Mahmud, Md Arafat Elumalai, Naveen Kumar Pal, Bhupendar Rajan, Jose Upama, Mushfika Baishakhi Wang, Dian Goncales, Vinicius R. Xu, Cheng Haque, Faiazul Uddin, Ashraf
author_sort	Mahmud, Md Arafat
title	Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells
title_short	Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells
title_full	Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells
title_fullStr	Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells
title_full_unstemmed	Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells
title_sort	electrospun 3d composite nano-flowers for high performance triple-cation perovskite solar cells
publisher	Elsevier
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/23649/ http://umpir.ump.edu.my/id/eprint/23649/ http://umpir.ump.edu.my/id/eprint/23649/ http://umpir.ump.edu.my/id/eprint/23649/1/Electrospun%203D%20composite%20nano.pdf
first_indexed	2023-09-18T22:35:31Z
last_indexed	2023-09-18T22:35:31Z
_version_	1777416569117212672

Electrospun 3D composite nano-flowers for high performance triple-cation perovskite solar cells

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