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dc.contributor.authorBanavoth, Murali
dc.contributor.authorDey, Sukumar
dc.contributor.authorAbdelhady, Ahmed L.
dc.contributor.authorPeng, Wei
dc.contributor.authorAlarousu, Erkki
dc.contributor.authorKirmani, Ahmad R.
dc.contributor.authorCho, Nam Chul
dc.contributor.authorSarmah, Smritakshi P.
dc.contributor.authorParida, Manas R.
dc.contributor.authorSaidaminov, Makhsud I.
dc.contributor.authorZhumekenov, Ayan A.
dc.contributor.authorSun, Jingya
dc.contributor.authorAlias, Mohd Sharizal
dc.contributor.authorYengel, Emre
dc.contributor.authorOoi, Boon S.
dc.contributor.authorAmassian, Aram
dc.contributor.authorBakr, Osman
dc.contributor.authorMohammed, Omar F.
dc.date.accessioned2017-01-12T13:01:27Z
dc.date.available2017-01-12T13:01:27Z
dc.date.issued2016-11-09
dc.identifier.citationMurali B, Dey S, Abdelhady AL, Peng W, Alarousu E, et al. (2016) Surface Restructuring of Hybrid Perovskite Crystals. ACS Energy Letters 1: 1119–1126. Available: http://dx.doi.org/10.1021/acsenergylett.6b00517.
dc.identifier.issn2380-8195
dc.identifier.issn2380-8195
dc.identifier.doi10.1021/acsenergylett.6b00517
dc.identifier.urihttp://hdl.handle.net/10754/622688
dc.description.abstractHybrid perovskite crystals have emerged as an important class of semiconductors because of their remarkable performance in optoelectronics devices. The interface structure and chemistry of these crystals are key determinants of the device's performance. Unfortunately, little is known about the intrinsic properties of the surfaces of perovskite materials because extrinsic effects, such as complex microstructures, processing conditions, and hydration under ambient conditions, are thought to cause resistive losses and high leakage current in solar cells. We reveal the intrinsic structural and optoelectronic properties of both pristinely cleaved and aged surfaces of single crystals. We identify surface restructuring on the aged surfaces (visualized on the atomic-scale by scanning tunneling microscopy) that lead to compositional and optical bandgap changes as well as degradation of carrier dynamics, photocurrent, and solar cell device performance. The insights reported herein clarify the key variables involved in the performance of perovskite-based solar cells and fabrication of high-quality surface single crystals, thus paving the way toward their future exploitation in highly efficient solar cells.
dc.description.sponsorshipKing Abdullah University of Science and Technology (KAUST) supported the work reported here. The authors gratefully acknowledge funding support from KAUST and from King Abdul-Aziz City for Science and Technology, Technology Innovation Center for Solid-State Lighting at KAUST. We also acknowledge Ahmed M. El-Zohry and Chen Yang for their help in the discussions related to reabsorption and crystal synthesis.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsenergylett.6b00517
dc.rightsThis is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
dc.rights.urihttp://pubs.acs.org/page/policy/authorchoice_termsofuse.html
dc.titleSurface Restructuring of Hybrid Perovskite Crystals
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterials Science and Engineering Program
dc.contributor.departmentPhotonics Laboratory
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalACS Energy Letters
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionNanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
kaust.personBanavoth, Murali
kaust.personDey, Sukumar
kaust.personPeng, Wei
kaust.personAlarousu, Erkki
kaust.personKirmani, Ahmad R.
kaust.personCho, Nam Chul
kaust.personSarmah, Smritakshi P.
kaust.personParida, Manas R.
kaust.personSaidaminov, Makhsud I.
kaust.personZhumekenov, Ayan A.
kaust.personSun, Jingya
kaust.personAlias, Mohd Sharizal
kaust.personYengel, Emre
kaust.personOoi, Boon S.
kaust.personAmassian, Aram
kaust.personBakr, Osman M.
kaust.personMohammed, Omar F.
refterms.dateFOA2018-06-14T05:04:34Z
dc.date.published-online2016-11-09
dc.date.published-print2016-12-09


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