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- Publisher Website: 10.1002/adfm.202101438
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Article: Tailoring the Interface in FAPbI3 Planar Perovskite Solar Cells by Imidazole‐Graphene‐Quantum‐Dots
Title | Tailoring the Interface in FAPbI3 Planar Perovskite Solar Cells by Imidazole‐Graphene‐Quantum‐Dots |
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Authors | |
Keywords | imidazole graphene quantum dots interface regulation planar perovskite solar cells |
Issue Date | 2021 |
Publisher | Wiley-VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afm |
Citation | Advanced Functional Materials, 2021, v. 31 n. 27, p. article no. 2101438 How to Cite? |
Abstract | Organic–inorganic hybrid perovskites have reached an unprecedented high efficiency in photovoltaic applications, which makes the commercialization of perovskite solar cells (PSCs) possible. In the past several years, particular attention has been paid to the stability of PSC devices, which is a critical issue for becoming a practical photovoltaic technology. In particular, the interface-induced degradation of perovskites should be the dominant factor causing poor stability. Here, imidazole bromide functionalized graphene quantum dots (I-GQDs) are demonstrated to regulate the interface between the electron transport layer (ETL) and formamidinium lead iodide (FAPbI3) perovskite layer. The incorporation of I-GQDs not only reduces the interface defects for achieving a better energy level alignment between ETL and perovskite, but also improves the film quality of FAPbI3 perovskite including enlarged grain size, lower trap density, and a longer carrier lifetime. Consequently, the planar FAPbI3 PSCs with I-GQDs regulation achieve a high efficiency of 22.37% with enhanced long-term stability. |
Persistent Identifier | http://hdl.handle.net/10722/305342 |
ISSN | 2021 Impact Factor: 19.924 2020 SCImago Journal Rankings: 6.069 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | GAO, Z | - |
dc.contributor.author | WANG, Y | - |
dc.contributor.author | LIU, H | - |
dc.contributor.author | SUN, J | - |
dc.contributor.author | KIM, J | - |
dc.contributor.author | Li, Y | - |
dc.contributor.author | Xu, B | - |
dc.contributor.author | Choy, WCH | - |
dc.date.accessioned | 2021-10-20T10:08:03Z | - |
dc.date.available | 2021-10-20T10:08:03Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Advanced Functional Materials, 2021, v. 31 n. 27, p. article no. 2101438 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | http://hdl.handle.net/10722/305342 | - |
dc.description.abstract | Organic–inorganic hybrid perovskites have reached an unprecedented high efficiency in photovoltaic applications, which makes the commercialization of perovskite solar cells (PSCs) possible. In the past several years, particular attention has been paid to the stability of PSC devices, which is a critical issue for becoming a practical photovoltaic technology. In particular, the interface-induced degradation of perovskites should be the dominant factor causing poor stability. Here, imidazole bromide functionalized graphene quantum dots (I-GQDs) are demonstrated to regulate the interface between the electron transport layer (ETL) and formamidinium lead iodide (FAPbI3) perovskite layer. The incorporation of I-GQDs not only reduces the interface defects for achieving a better energy level alignment between ETL and perovskite, but also improves the film quality of FAPbI3 perovskite including enlarged grain size, lower trap density, and a longer carrier lifetime. Consequently, the planar FAPbI3 PSCs with I-GQDs regulation achieve a high efficiency of 22.37% with enhanced long-term stability. | - |
dc.language | eng | - |
dc.publisher | Wiley-VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afm | - |
dc.relation.ispartof | Advanced Functional Materials | - |
dc.rights | Submitted (preprint) Version This is the pre-peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. Accepted (peer-reviewed) Version This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. | - |
dc.subject | imidazole graphene quantum dots | - |
dc.subject | interface regulation | - |
dc.subject | planar perovskite solar cells | - |
dc.title | Tailoring the Interface in FAPbI3 Planar Perovskite Solar Cells by Imidazole‐Graphene‐Quantum‐Dots | - |
dc.type | Article | - |
dc.identifier.email | Choy, WCH: chchoy@eee.hku.hk | - |
dc.identifier.authority | Choy, WCH=rp00218 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1002/adfm.202101438 | - |
dc.identifier.scopus | eid_2-s2.0-85104644633 | - |
dc.identifier.hkuros | 327816 | - |
dc.identifier.volume | 31 | - |
dc.identifier.issue | 27 | - |
dc.identifier.spage | article no. 2101438 | - |
dc.identifier.epage | article no. 2101438 | - |
dc.identifier.isi | WOS:000642316100001 | - |
dc.publisher.place | Germany | - |