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Crystalline Liquid-like Behavior: Surface-Induced Secondary Grain Growth of Photovoltaic Perovskite Thin Film

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dc.contributor.authorYAVUZ, İLHAN
dc.contributor.authorsXue, Jingjing; Wang, Rui; Wang, Kai-Li; Wang, Zhao-Kui; Yavuz, Ilhan; Wang, Yang; Yang, Yingguo; Gao, Xingyu; Huang, Tianyi; Nuryyeva, Selbi; Lee, Jin-Wook; Duan, Yu; Liao, Liang-Sheng; Kaner, Richard; Yang, Yang
dc.date.accessioned2022-03-12T22:39:21Z
dc.date.available2022-03-12T22:39:21Z
dc.date.issued2019
dc.description.abstractSurface effects usually become negligible on the micrometer or sub-micrometer scale due to lower surface-to-bulk ratio compared to nanomaterials. In lead halide perovskites, however, their soft nature renders them highly responsive to the external field, allowing for extended depth scale affected by the surface. Herein, by taking advantage of this unique feature of perovskites we demonstrate a methodology for property manipulation of perovskite thin films based on secondary grain growth, where tuning of the surface induces the internal property evolution of the entire perovskite film. While in conventional microelectronic techniques secondary grain growth generally involves harsh conditions such as high temperature and straining, it is easily triggered in a perovskite thin film by a simple surface post-treatment, producing enlarged grain sizes of up to 4 mu m. The resulting photovoltaic devices exhibit significantly enhanced power conversion efficiency and operational stability over a course of 1000 h and an ambient shelf stability of over 4000 h while maintaining over 90% of its original efficiency.
dc.identifier.doi10.1021/jacs.9b06940
dc.identifier.eissn1520-5126
dc.identifier.issn0002-7863
dc.identifier.pubmed31403287
dc.identifier.urihttps://hdl.handle.net/11424/235812
dc.identifier.wosWOS:000484828900037
dc.language.isoeng
dc.publisherAMER CHEMICAL SOC
dc.relation.ispartofJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBOUNDARIES
dc.subjectSIZE
dc.titleCrystalline Liquid-like Behavior: Surface-Induced Secondary Grain Growth of Photovoltaic Perovskite Thin Film
dc.typearticle
dspace.entity.typePublication
local.avesis.ide355fe77-b78f-44cc-ad19-1296ab598793
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.indexed.atPUBMED
local.journal.numberofpages6
local.journal.quartileQ1
oaire.citation.endPage13953
oaire.citation.issue35
oaire.citation.startPage13948
oaire.citation.titleJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
oaire.citation.volume141
relation.isAuthorOfPublication1d307a1a-bb00-4488-bf3f-6d14f3fe43ce
relation.isAuthorOfPublication.latestForDiscovery1d307a1a-bb00-4488-bf3f-6d14f3fe43ce

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