High efficiency perovskite solar cells using DC sputtered compact TiO2 electron transport layer

High conductivity and transparency of the electron-transporting layer (ETL) is essential to achieve high efficiency perovskite solar cells (PvSCs). Generally, titanium dioxide (TiO2) has been extensively utilized as an ETL in PvSCs. Both surface roughness and uniformity of the compact-TiO2 (C-TiO2)...

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Autores principales:	Hayali Ahmed, Alkaisi Maan M.
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	electron transport layer dc sputtering compact tio2 high efficiency perovskite solar cells Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/bdba0c105c0049f18d541ab928abbf2c
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spelling	oai:doaj.org-article:bdba0c105c0049f18d541ab928abbf2c2021-12-02T17:13:14ZHigh efficiency perovskite solar cells using DC sputtered compact TiO2 electron transport layer2105-071610.1051/epjpv/2021008https://doaj.org/article/bdba0c105c0049f18d541ab928abbf2c2021-01-01T00:00:00Zhttps://www.epj-pv.org/articles/epjpv/full_html/2021/01/pv210008/pv210008.htmlhttps://doaj.org/toc/2105-0716High conductivity and transparency of the electron-transporting layer (ETL) is essential to achieve high efficiency perovskite solar cells (PvSCs). Generally, titanium dioxide (TiO2) has been extensively utilized as an ETL in PvSCs. Both surface roughness and uniformity of the compact-TiO2 (C-TiO2) can influence the efficiency of the PvSC. This work investigates the optimization of the direct current (DC) sputtering power and the ratio of argon (Ar) to oxygen (O2) plasma to achieve high quality ETL films. The effect of changing the DC sputtering power on the C-TiO2 films and subsequently on the overall efficiency was studied. The electrical and optical properties of the C-TiO2 layer were characterized for various DC powers and different ratios of Ar to O2 plasma. It was found that the optimum preparation conditions for the C-TiO2 films were obtained when the DC power was set at 200 W and a flow rate of 6 sccm Ar and 12 sccm O2. A power conversion efficiency (PCE) of 15.3% in forward sweep and 16.7% in reverse sweep were achieved under sunlight simulator of 100 mW/cm2. These results indicate that significant improvement in the efficiency can be achieved, by optimizing the C-TiO2 layer.Hayali AhmedAlkaisi Maan M.EDP Sciencesarticleelectron transport layerdc sputteringcompact tio2high efficiency perovskite solar cellsRenewable energy sourcesTJ807-830ENEPJ Photovoltaics, Vol 12, p 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	electron transport layer dc sputtering compact tio2 high efficiency perovskite solar cells Renewable energy sources TJ807-830
spellingShingle	electron transport layer dc sputtering compact tio2 high efficiency perovskite solar cells Renewable energy sources TJ807-830 Hayali Ahmed Alkaisi Maan M. High efficiency perovskite solar cells using DC sputtered compact TiO2 electron transport layer
description	High conductivity and transparency of the electron-transporting layer (ETL) is essential to achieve high efficiency perovskite solar cells (PvSCs). Generally, titanium dioxide (TiO2) has been extensively utilized as an ETL in PvSCs. Both surface roughness and uniformity of the compact-TiO2 (C-TiO2) can influence the efficiency of the PvSC. This work investigates the optimization of the direct current (DC) sputtering power and the ratio of argon (Ar) to oxygen (O2) plasma to achieve high quality ETL films. The effect of changing the DC sputtering power on the C-TiO2 films and subsequently on the overall efficiency was studied. The electrical and optical properties of the C-TiO2 layer were characterized for various DC powers and different ratios of Ar to O2 plasma. It was found that the optimum preparation conditions for the C-TiO2 films were obtained when the DC power was set at 200 W and a flow rate of 6 sccm Ar and 12 sccm O2. A power conversion efficiency (PCE) of 15.3% in forward sweep and 16.7% in reverse sweep were achieved under sunlight simulator of 100 mW/cm2. These results indicate that significant improvement in the efficiency can be achieved, by optimizing the C-TiO2 layer.
format	article
author	Hayali Ahmed Alkaisi Maan M.
author_facet	Hayali Ahmed Alkaisi Maan M.
author_sort	Hayali Ahmed
title	High efficiency perovskite solar cells using DC sputtered compact TiO2 electron transport layer
title_short	High efficiency perovskite solar cells using DC sputtered compact TiO2 electron transport layer
title_full	High efficiency perovskite solar cells using DC sputtered compact TiO2 electron transport layer
title_fullStr	High efficiency perovskite solar cells using DC sputtered compact TiO2 electron transport layer
title_full_unstemmed	High efficiency perovskite solar cells using DC sputtered compact TiO2 electron transport layer
title_sort	high efficiency perovskite solar cells using dc sputtered compact tio2 electron transport layer
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/bdba0c105c0049f18d541ab928abbf2c
work_keys_str_mv	AT hayaliahmed highefficiencyperovskitesolarcellsusingdcsputteredcompacttio2electrontransportlayer AT alkaisimaanm highefficiencyperovskitesolarcellsusingdcsputteredcompacttio2electrontransportlayer
_version_	1718381402113703936

High efficiency perovskite solar cells using DC sputtered compact TiO2 electron transport layer

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