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Article: Tailoring Triple‐Anion Perovskite Material for Indoor Light Harvesting with Restrained Halide Segregation and Record High Efficiency Beyond 36%

TitleTailoring Triple‐Anion Perovskite Material for Indoor Light Harvesting with Restrained Halide Segregation and Record High Efficiency Beyond 36%
Authors
Keywordshalide segregation
indoor light harvesting
perovskite solar cells
tailored bandgap
triple anion
Issue Date2019
PublisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1614-6840
Citation
Advanced Energy Materials, 2019, v. 9 n. 38, p. article no. 1901980 How to Cite?
AbstractIndoor photovoltaics are promising to enable self‐powered electronic devices for the Internet of Things. Here, reported is a triple‐anion CH3NH3PbI2−xBrClx perovskite film, of which the bandgap is specially designed for indoor light harvesting to achieve a record high efficiency of 36.2% with distinctive high open circuit voltage (Voc) of 1.028 V under standard 1000 lux fluorescent light. The involvement of both bromide and chloride suppresses the trap‐states and nonradiative recombination loss, exhibiting a remarkable ideality factor of 1.097. The introduction of chloride successfully restrains the halide segregation of iodide and bromide, stabilizing the triple‐anion perovskite film. The devices show an excellent long‐term performance, sustaining over 95% of original efficiency under continuous light soaking over 2000 h. These findings show the importance and potential of I/Br/Cl triple‐anion perovskite with tailored bandgap and suppressed trap‐states in stable and efficient indoor light recycling.
Persistent Identifierhttp://hdl.handle.net/10722/277109
ISSN
2017 Impact Factor: 21.875
2015 SCImago Journal Rankings: 6.411

 

DC FieldValueLanguage
dc.contributor.authorCheng, R-
dc.contributor.authorChung, CC-
dc.contributor.authorZhang, H-
dc.contributor.authorLiu, F-
dc.contributor.authorWang, WT-
dc.contributor.authorZHOU, Z-
dc.contributor.authorWang, S-
dc.contributor.authorDjurisic, A-
dc.contributor.authorFeng, SP-
dc.date.accessioned2019-09-20T08:44:36Z-
dc.date.available2019-09-20T08:44:36Z-
dc.date.issued2019-
dc.identifier.citationAdvanced Energy Materials, 2019, v. 9 n. 38, p. article no. 1901980-
dc.identifier.issn1614-6832-
dc.identifier.urihttp://hdl.handle.net/10722/277109-
dc.description.abstractIndoor photovoltaics are promising to enable self‐powered electronic devices for the Internet of Things. Here, reported is a triple‐anion CH3NH3PbI2−xBrClx perovskite film, of which the bandgap is specially designed for indoor light harvesting to achieve a record high efficiency of 36.2% with distinctive high open circuit voltage (Voc) of 1.028 V under standard 1000 lux fluorescent light. The involvement of both bromide and chloride suppresses the trap‐states and nonradiative recombination loss, exhibiting a remarkable ideality factor of 1.097. The introduction of chloride successfully restrains the halide segregation of iodide and bromide, stabilizing the triple‐anion perovskite film. The devices show an excellent long‐term performance, sustaining over 95% of original efficiency under continuous light soaking over 2000 h. These findings show the importance and potential of I/Br/Cl triple‐anion perovskite with tailored bandgap and suppressed trap‐states in stable and efficient indoor light recycling.-
dc.languageeng-
dc.publisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1614-6840-
dc.relation.ispartofAdvanced Energy Materials-
dc.rightsThis 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.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjecthalide segregation-
dc.subjectindoor light harvesting-
dc.subjectperovskite solar cells-
dc.subjecttailored bandgap-
dc.subjecttriple anion-
dc.titleTailoring Triple‐Anion Perovskite Material for Indoor Light Harvesting with Restrained Halide Segregation and Record High Efficiency Beyond 36%-
dc.typeArticle-
dc.identifier.emailChung, CC: chungcc@hku.hk-
dc.identifier.emailLiu, F: liufz@hku.hk-
dc.identifier.emailWang, WT: wtwang77@hku.hk-
dc.identifier.emailWang, S: sijiaw@HKUCC-COM.hku.hk-
dc.identifier.emailDjurisic, A: dalek@hku.hk-
dc.identifier.authorityDjurisic, A=rp00690-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1002/aenm.201901980-
dc.identifier.scopuseid_2-s2.0-85071649469-
dc.identifier.hkuros305737-
dc.identifier.volume9-
dc.identifier.issue38-
dc.identifier.spagearticle no. 1901980-
dc.identifier.epagearticle no. 1901980-
dc.publisher.placeGermany-

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