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dc.contributor.authorRong, Yaoguang
dc.contributor.authorHu, Yue
dc.contributor.authorRavishankar, Sandheep
dc.contributor.authorhuawei, liu
dc.contributor.authorHou, Xiaomeng
dc.contributor.authorSheng, Yusong
dc.contributor.authorMei, Anyi
dc.contributor.authorXu, Mi
dc.contributor.authorBisquert, Juan
dc.contributor.authorHan, Hongwei
dc.date.accessioned2017-11-10T12:20:27Z
dc.date.available2017-11-10T12:20:27Z
dc.date.issued2017-09-14
dc.identifier.citationRONG, Yaoguang; HU, Yue; RAVISHANKAR, Shandeep; LIU, Huawei; HOU, Xiaomeng; SHENG, Yusong; MEI, Anyi; XU, Mi; BISQUERT, Juan; HAN, Hongwei. Tunable hysteresis effect for perovskite solar cells. Energy & Environmental Science (2017), issue 11, p. 2383-2391ca_CA
dc.identifier.urihttp://hdl.handle.net/10234/169983
dc.description.abstractPerovskite solar cells (PSCs) usually suffer from a hysteresis effect in current–voltage measurements, which leads to an inaccurate estimation of the device e fficiency. Although ion migration, charge trapping/ detrapping, and accumulation have been proposed as a b asis for the hysteresis, the origin of the hysteresis has not been apparently unraveled. Herein we reporte d a tunable hysteresis effect based uniquely on open- circuit voltage variations in printable mesos copic PSCs with a simplified triple-layer TiO 2 /ZrO 2 /carbon architecture. The electrons are collected by the compact TiO 2 /mesoporous TiO 2 (c-TiO 2 /mp-TiO 2 )bilayer, and the holes are collected by the carbon layer. By adj usting the spray deposition cycles for the c-TiO 2 layer andUV-ozonetreatment,weachievedhysteresis-norm al, hysteresis-free, and hysteresis-inverted PSCs. Such unique trends of tunable hysteresis are anal yzed by considering the polarization of the TiO 2 /perovskite interface, which can accumulate positive charges reversibly. Successfully tuning of the hysteresis effect clarifies the critical importance of the c-TiO 2 /perovskite interface in controlling the hysteretic trends observed, providing important insights towards the understanding of this rapidly developing photovoltaic technology.ca_CA
dc.format.extent8 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherRoyal Society of Chemistryca_CA
dc.relation.isPartOfEnergy & Environmental Science (2017), issue 11ca_CA
dc.subjectPerovskite solar cells (PSCs)ca_CA
dc.subjectHysteresisca_CA
dc.subjectSpray deposition cycleca_CA
dc.subjectUV-ozonetreatmenca_CA
dc.subjectPhotovoltaic technologyca_CA
dc.titleTunable hysteresis effect for perovskite solar cellsca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttps://doi.org/10.1039/C7EE02048A
dc.relation.projectID1) National Natural Science Foundation of China (91433203, 61474049, 51502141, 21702069); 2) Ministry of Science and Technology of China (2015AA034601), the 111 Project (No. B07038); 3) China Postdoctoral Science Foundation (2016M600588); 4) MINECO of Spain under Project MAT2016-76892-C3-1-R; 5) Generalitat Valenciana Project PROMETEOII/2014/020; 6) Generalitat Valenciana for the grant (GRISOLIA/2014/034).ca_CA
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttp://pubs.rsc.org/en/content/articlelanding/2017/ee/c7ee02048a#!divAbstractca_CA
dc.type.versioninfo:eu-repo/semantics/publishedVersionca_CA


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