• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesTitleAuthorsKAUST AuthorsIssue DateSubmit DateSubjectsThis CollectionTitleAuthorsKAUST AuthorsIssue DateSubmit DateSubjects

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguidePlumX LibguideSubmit an Item

    Statistics

    Display statistics

    Hybrid perovskite solar cells: In situ investigation of solution-processed PbI2 reveals metastable precursors and a pathway to producing porous thin films

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Barrit, Dounya
    Sheikh, Arif D. cc
    Munir, Rahim cc
    Barbe, Jeremy cc
    Li, Ruipeng
    Smilgies, Detlef-M. cc
    Amassian, Aram cc
    KAUST Department
    KAUST Solar Center (KSC)
    Physical Sciences and Engineering (PSE) Division
    Date
    2017-04-17
    Permanent link to this record
    http://hdl.handle.net/10754/623438
    
    Metadata
    Show full item record
    Abstract
    The successful and widely used two-step process of producing the hybrid organic-inorganic perovskite CH3NH3PbI3, consists of converting a solution deposited PbI2 film by reacting it with CH3NH3I. Here, we investigate the solidification of PbI2 films from a DMF solution by performing in situ grazing incidence wide angle X-ray scattering (GIWAXS) measurements. The measurements reveal an elaborate sol–gel process involving three PbI2⋅DMF solvate complexes—including disordered and ordered ones—prior to PbI2 formation. The ordered solvates appear to be metastable as they transform into the PbI2 phase in air within minutes without annealing. Morphological analysis of air-dried and annealed films reveals that the air-dried PbI2 is substantially more porous when the coating process produces one of the intermediate solvates, making this more suitable for subsequent conversion into the perovskite phase. The observation of metastable solvates on the pathway to PbI2 formation open up new opportunities for influencing the two-step conversion of metal halides into efficient light harvesting or emitting perovskite semiconductors.
    Citation
    Barrit D, Sheikh AD, Munir R, Barbé JM, Li R, et al. (2017) Hybrid perovskite solar cells: In situ investigation of solution-processed PbI2 reveals metastable precursors and a pathway to producing porous thin films. Journal of Materials Research: 1–9. Available: http://dx.doi.org/10.1557/jmr.2017.117.
    Sponsors
    This work was supported by the King Abdullah University of Science and Technology (KAUST). CHESS is supported by the NSF & NIH/NIGMS via NSF award DMR-1332208.
    Publisher
    Cambridge University Press (CUP)
    Journal
    Journal of Materials Research
    ISSN
    0884-2914
    2044-5326
    DOI
    10.1557/jmr.2017.117
    Additional Links
    https://www.cambridge.org/core/journals/journal-of-materials-research/article/hybrid-perovskite-solar-cells-in-situ-investigation-of-solutionprocessed-pbi2-reveals-metastable-precursors-and-a-pathway-to-producing-porous-thin-films/1B173FB59801ED8CE7D66F9216B29829
    ae974a485f413a2113503eed53cd6c53
    10.1557/jmr.2017.117
    Scopus Count
    Collections
    Articles; Physical Sciences and Engineering (PSE) Division; KAUST Solar Center (KSC)

    entitlement

     
    DSpace software copyright © 2002-2019  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.