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dc.contributor.authorShaikh, Parvez Abdul Ajij
dc.contributor.authorShi, Dong
dc.contributor.authorDuran Retamal, Jose Ramon
dc.contributor.authorSheikh, Arif D.
dc.contributor.authorHaque, Mohammed
dc.contributor.authorKang, Chen-Fang
dc.contributor.authorHe, Jr-Hau
dc.contributor.authorBakr, Osman
dc.contributor.authorWu, Tao
dc.date.accessioned2017-01-02T09:28:32Z
dc.date.available2017-01-02T09:28:32Z
dc.date.issued2016-08-16
dc.identifier.citationShaikh PA, Shi D, Retamal JRD, Sheikh AD, Haque MA, et al. (2016) Schottky junctions on perovskite single crystals: light-modulated dielectric constant and self-biased photodetection. J Mater Chem C 4: 8304–8312. Available: http://dx.doi.org/10.1039/c6tc02828d.
dc.identifier.issn2050-7526
dc.identifier.issn2050-7534
dc.identifier.doi10.1039/c6tc02828d
dc.identifier.urihttp://hdl.handle.net/10754/622461
dc.description.abstractSchottky junctions formed between semiconductors and metal contacts are ubiquitous in modern electronic and optoelectronic devices. Here we report on the physical properties of Schottky-junctions formed on hybrid perovskite CH3NH3PbBr3 single crystals. It is found that light illumination can significantly increase the dielectric constant of perovskite junctions by 2300%. Furthermore, such Pt/perovskite junctions are used to fabricate self-biased photodetectors. A photodetectivity of 1.4 × 1010 Jones is obtained at zero bias, which increases to 7.1 × 1011 Jones at a bias of +3 V, and the photodetectivity remains almost constant in a wide range of light intensity. These devices also exhibit fast responses with a rising time of 70 μs and a falling time of 150 μs. As a result of the high crystal quality and low defect density, such single-crystal photodetectors show stable performance after storage in air for over 45 days. Our results suggest that hybrid perovskite single crystals provide a new platform to develop promising optoelectronic applications. © 2016 The Royal Society of Chemistry.
dc.description.sponsorshipThe research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST).
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2016/TC/C6TC02828D
dc.titleSchottky junctions on perovskite single crystals: light-modulated dielectric constant and self-biased photodetection
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterials Science and Engineering Program
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.identifier.journalJ. Mater. Chem. C
kaust.personShaikh, Parvez Abdul Ajij
kaust.personShi, Dong
kaust.personDuran Retamal, Jose Ramon
kaust.personSheikh, Arif D.
kaust.personHaque, Mohammed
kaust.personKang, Chen-Fang
kaust.personHe, Jr-Hau
kaust.personBakr, Osman
kaust.personWu, Tao


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