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dc.contributor.authorHu, Long
dc.contributor.authorZhao, Qian
dc.contributor.authorHuang, Shujuan
dc.contributor.authorZheng, Jianghui
dc.contributor.authorGuan, Xinwei
dc.contributor.authorPatterson, Robert
dc.contributor.authorKim, Jijun
dc.contributor.authorShi, Lei
dc.contributor.authorQi, Lei
dc.contributor.authorLin, Chun-Ho
dc.contributor.authorChu, Dewei
dc.contributor.authorWan, Tao
dc.contributor.authorCheong, Soshan
dc.contributor.authorTilley, Richard
dc.contributor.authorHo-Baillie, Anita
dc.contributor.authorLuther, Joseph
dc.contributor.authorYuan, Jianyu
dc.contributor.authorWu, Tom
dc.date.accessioned2020-08-18T11:45:08Z
dc.date.available2020-08-18T11:45:08Z
dc.date.issued2020-07-31
dc.identifier.citationHu, L., Zhao, Q., Huang, S., Zheng, J., Guan, X., Patterson, R., … Wu, T. (2020). Flexible and efficient perovskite quantum dot solar cells via hybrid interfacial architecture. doi:10.21203/rs.3.rs-47321/v1
dc.identifier.doi10.21203/rs.3.rs-47321/v1
dc.identifier.urihttp://hdl.handle.net/10754/664655
dc.description.abstractAll-inorganic CsPbI3 perovskite quantum dots (QDs) have received intense research interest for photovoltaic applications because of the recently demonstrated higher power conversion efficiency compared to solar cells using other QD materials. These QD devices also exhibit good mechanical stability amongst various thin-film photovoltaic technologies. In this work, through developing a hybrid interfacial architecture consisting of CsPbI3 QD/PCBM heterojunctions, we report the formation of an energy cascade for efficient charge transfer at both QD heterointerfaces and QD/electron transport layer interfaces. The champion CsPbI3 QD solar cell has a best power conversion efficiency of 15.1%, which is among the highest report to date. Building on this strategy, we demonstrate the very first perovskite QD flexible solar cell with a record efficiency of 12.3%. A detailed morphological characterization reveals that the perovskite QD film can better retain structure integrity than perovskite bulk thin-film under external mechanical stress. This work is the first to demonstrate higher mechanical endurance of QD film compared to bulk thin-film, and highlights the importance of further research on high-performance and flexible optoelectronic devices using solution-processed QDs.
dc.description.sponsorshipL. Hu and T. Wu acknowledge the support of the Australian Research Council (DP190103316). This research used the facilities supported by Microscopy Australia at the Electron Microscope Unit at UNSW. J. Yuan thank the support from the National Natural Science Foundation of China (Grant No. 51803144) the Natural Science Foundation of Jiangsu Province of China (BK20170337)“111” project, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).
dc.publisherResearch Square Platform LLC
dc.relation.urlhttps://www.researchsquare.com/article/rs-47321/v1
dc.rightsArchived with thanks to Research Square
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleFlexible and efficient perovskite quantum dot solar cells via hybrid interfacial architecture
dc.typePreprint
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentMaterial Science and Engineering
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.eprint.versionPre-print
dc.contributor.institutionUniversity of New South Wales
dc.contributor.institutionNankai University
dc.contributor.institutionMacquarie University
dc.contributor.institutionThe University of New South Wales
dc.contributor.institutionUNSW Sydney
dc.contributor.institutionUNSW Australia
dc.contributor.institutionThe University of Sydney
dc.contributor.institutionNational Renewable Energy Laboratory
dc.contributor.institutionSoochow University
kaust.personGuan, Xinwei
refterms.dateFOA2020-08-18T11:46:29Z


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