气候变化领域集成服务门户(CCPortal): Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor

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DOI	10.1039/c9ee02028d
	Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor
	Kanda H.; Shibayama N.; Huckaba A.J.; Lee Y.; Paek S.; Klipfel N.; Roldán-Carmona C.; Queloz V.I.E.; Grancini G.; Zhang Y.; Abuhelaiqa M.; Cho K.T.; Li M.; Mensi M.D.; Kinge S.; Nazeeruddin M.K.
发表日期	2020
ISSN	1754-5692
起始页码	1222
结束页码	1230
卷号	13 期号:4
英文摘要	Surface passivation of the perovskite photo absorber is a key factor to improve the photovoltaic performance. So far robust passivation strategies have not yet been revealed. Here, we demonstrate a successful passivation strategy which controls the Fermi-level of the perovskite surface by improving the surface states. Such Fermi-level control caused band-bending between the surface and bulk of the perovskite, which enhanced the hole-extraction from the absorber bulk to the HTM side. As an added benefit, the inorganic passivation layer improved the device light stability. By depositing a thick protection layer on the complete device, a remarkable waterproofing effect was obtained. As a result, an enhancement of VOC and the conversion efficiency from 20.5% to 22.1% was achieved. We revealed these passivation mechanisms and used perhydropoly(silazane) (PHPS) derived silica to control the perovskite surface states. © The Royal Society of Chemistry.
语种	英语
scopus关键词	Fermi level; Image enhancement; Perovskite; Perovskite solar cells; Silica; Surface states; Bandbending; Hole extractions; Inorganic passivations; Light stability; Passivation strategy; Photovoltaic performance; Protection layers; Surface passivation; Passivation; cell; detection method; efficiency measurement; fuel cell; performance assessment; perovskite; photovoltaic system; polymer; temperature effect; volatile organic compound; waterproofing
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162544
作者单位	Group for Molecular Engineering of Functional Materials, École Polytechnique Fédérale de Lausanne Valais Wallis, Sion, CH-1951, Switzerland; Department of General Systems Studies, Graduate School of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan; Laboratory of Materials for Renewable Energy, École Polytechnique Fédérale de Lausanne Valais Wallis, Sion, CH-1951, Switzerland; Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland; Toyota Motor Corporation, Toyota Motor Technical Centre, Advanced Technology Div. Hoge Wei 33, Zaventum, B-1930, Belgium; Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne Valais Wallis, Sion, CH-1951, Switzerland
推荐引用方式 GB/T 7714	Kanda H.,Shibayama N.,Huckaba A.J.,et al. Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor[J],2020,13(4).
APA	Kanda H..,Shibayama N..,Huckaba A.J..,Lee Y..,Paek S..,...&Nazeeruddin M.K..(2020).Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor.Energy and Environmental Science,13(4).
MLA	Kanda H.,et al."Band-bending induced passivation: High performance and stable perovskite solar cells using a perhydropoly(silazane) precursor".Energy and Environmental Science 13.4(2020).