• Login
    View Item 
    •   Home
    • Office of Sponsored Research (OSR)
    • KAUST Funded Research
    • Publications Acknowledging KAUST Support
    • View Item
    •   Home
    • Office of Sponsored Research (OSR)
    • KAUST Funded Research
    • Publications Acknowledging KAUST Support
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    Photon Reabsorption in Mixed CsPbCl3:CsPbI3 Perovskite Nanocrystal Films for Light-Emitting Diodes

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Davis, Nathaniel J. L. K.
    de la Peña, Francisco J.
    Tabachnyk, Maxim
    Richter, Johannes M.
    Lamboll, Robin D.
    Booker, Edward P.
    Wisnivesky Rocca Rivarola, Florencia
    Griffiths, James T. cc
    Ducati, Caterina
    Menke, S. Matthew cc
    Deschler, Felix
    Greenham, Neil C. cc
    Date
    2017-02-09
    Online Publication Date
    2017-02-09
    Print Publication Date
    2017-02-23
    Permanent link to this record
    http://hdl.handle.net/10754/626719
    
    Metadata
    Show full item record
    Abstract
    Cesium lead halide nanocrystals, CsPbX3 (X = Cl, Br, I), exhibit photoluminescence quantum efficiencies approaching 100% without the core–shell structures usually used in conventional semiconductor nanocrystals. These high photoluminescence efficiencies make these crystals ideal candidates for light-emitting diodes (LEDs). However, because of the large surface area to volume ratio, halogen exchange between perovskite nanocrystals of different compositions occurs rapidly, which is one of the limiting factors for white-light applications requiring a mixture of different crystal compositions to achieve a broad emission spectrum. Here, we use mixtures of chloride and iodide CsPbX3 (X = Cl, I) perovskite nanocrystals where anion exchange is significantly reduced. We investigate samples containing mixtures of perovskite nanocrystals with different compositions and study the resulting optical and electrical interactions. We report excitation transfer from CsPbCl3 to CsPbI3 in solution and within a poly(methyl methacrylate) matrix via photon reabsorption, which also occurs in electrically excited crystals in bulk heterojunction LEDs.
    Citation
    Davis NJLK, de la Peña FJ, Tabachnyk M, Richter JM, Lamboll RD, et al. (2017) Photon Reabsorption in Mixed CsPbCl3:CsPbI3 Perovskite Nanocrystal Films for Light-Emitting Diodes. The Journal of Physical Chemistry C 121: 3790–3796. Available: http://dx.doi.org/10.1021/acs.jpcc.6b12828.
    Sponsors
    N.J.L.K.D. thanks the Cambridge Commonwealth European and International Trust, Cambridge Australian Scholarships, and Charles K. Allen for financial support. M.T. thanks the Gates Cambridge Trust, EPSRC, and the Winton Programme for the Physics of Sustainability for financial support. J.R. thanks the Cambridge Commonwealth European and International Trust, EPSRC and the Winton Programme for the Physics of Sustainability for financial support. E.P.B. thanks the EPSRC Centre for Doctoral Training: New and Sustainable Photovoltaics. R.D.L. thanks the EPSRC for funding. S.M.M. acknowledges competitive research funding from King Abdullah University of Science and Technology (KAUST). F.W.R.R. gratefully thanks financial support from CNPq Grant No. 246050/2012-8. F.W.R.R. and C.D. acknowledge funding from the ERC under Grant No. 259619 PHOTO-EM. C.D. acknowledges financial support from the EU under Grant No. 312483 ESTEEM2. F.D. is thankful for the Herchel Smith fellowship. This work was supported by the EPSRC (Grant Nos. EP/M005143/1, EP/G060738/1, and EP/G037221/1).
    Publisher
    American Chemical Society (ACS)
    Journal
    The Journal of Physical Chemistry C
    DOI
    10.1021/acs.jpcc.6b12828
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.jpcc.6b12828
    Scopus Count
    Collections
    Publications Acknowledging KAUST Support

    entitlement

     
    DSpace software copyright © 2002-2023  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    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.