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dc.contributor.authorAhmad, Shahaben
dc.contributor.authorKanaujia, Pawan Ken
dc.contributor.authorNiu, Wendyen
dc.contributor.authorBaumberg, Jeremyen
dc.contributor.authorPrakash, G Vijayaen
dc.date.accessioned2014-07-08T15:10:31Z
dc.date.available2014-07-08T15:10:31Z
dc.date.issued2014-06-06en
dc.identifier.citationShahab, A; Kanaujia, P.K; Niu, W; Baumberg, J.J; Prakash, G.V. "In-situ intercalation dynamics in inorganic-organic layered perovskite thin films" ACS Applied Materials & Interfaces. Advanced access online from 6th June 2014. DOI: 10.1021/am501568jen
dc.identifier.issn1944-8244
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/245409
dc.description.abstractThe properties of layered inorganic semiconductors can be manipulated by the insertion of foreign molecular species via a process known as intercalation. In the present study, we investigate the phenomenon of organic moiety (R-NH3I) intercalation in layered metal-halide (PbI2)-based inorganic semiconductors, leading to the formation of inorganic-organic (IO) perovskites [(R-NH3)2PbI4]. During this intercalation strong resonant exciton optical transitions are created, enabling study of the dynamics of this process. Simultaneous in-situ photoluminescence (PL) and transmission measurements are used to track the structural and exciton evolution. Based on the experimental observations, a model is proposed which explains the process of IO perovskite formation during intercalation of the organic moiety through the inorganic semiconductor layers. The interplay between precursor film thickness and organic solution concentration/solvent highlights the role of van der Waals interactions between the layers, as well as the need for maintaining stoichiometry during intercalation. Nucleation and growth occurring during intercalation matches a Johnson-Mehl-Avrami-Kolmogorov model, with results fitting both ideal and non-ideal cases.
dc.description.sponsorshipThis work is part of High-Impact Research scheme of IIT Delhi, Nano Research Facility (MCIT, Govt. Of India), UK-India Education and Research Initiative (UKIERI) programme, and part funded by EPSRC grant EP/G060649/1, and ERC LINASS 320503.
dc.languageEnglishen
dc.language.isoenen
dc.publisherACS Publications
dc.rightsDSpace@Cambridge License
dc.subjectinorganic-organic perovskite thin filmsen
dc.subjectnatural multiple quantum wellsen
dc.subjectintercalation dynamicsen
dc.subjectroom-temperature excitonsen
dc.titleIn-situ intercalation dynamics in inorganic-organic layered perovskite thin filmsen
dc.typeArticle
dc.description.versionThis material is excerpted from a work that was published in ACS Applied Materials and Interfaces, copyright © American Chemical Society after peer review. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/am501568jen
prism.publicationDate2014en
prism.publicationNameACS Applied Materials & Interfacesen
dc.rioxxterms.funderEPSRC
dc.rioxxterms.projectidEP/G060649/1
dc.embargo.liftdate2015-06-06
dc.embargo.terms2015-06-06
rioxxterms.versionofrecord10.1021/am501568jen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2014-06-06en
dc.contributor.orcidBaumberg, Jeremy [0000-0002-9606-9488]
dc.identifier.eissn1944-8252
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/G060649/1)
pubs.funder-project-idEuropean Research Council (320503)
rioxxterms.freetoread.startdate2015-06-06


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