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    Efficient light emitting devices based on phosphorescent partially doped emissive layers

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    Type
    Article
    Authors
    Yang, Xiaohui
    Jabbour, Ghassan E.
    KAUST Department
    KAUST Solar Center (KSC)
    Physical Science and Engineering (PSE) Division
    Date
    2013-05-29
    Online Publication Date
    2013-05-29
    Print Publication Date
    2013
    Permanent link to this record
    http://hdl.handle.net/10754/575898
    
    Metadata
    Show full item record
    Abstract
    We report efficient organic light emitting devices employing an ultrathin phosphor emissive layer. The electroluminescent spectra of these devices can be tuned by introducing a low-energy emitting phosphor layer into the emission zone. Devices with the emissive layer consisting of multiple platinum-complex/spacer layer cells show a peak external quantum efficiency of 18.1%, which is among the best EQE values for platinum-complex based light emitting devices. Devices with an ultrathin phosphor emissive layer show stronger luminance decay with the operating time compared to the counterpart devices having a host-guest emissive layer.
    Citation
    Yang, X., & Jabbour, G. E. (2013). Efficient light emitting devices based on phosphorescent partially doped emissive layers. Journal of Materials Chemistry C, 1(31), 4663. doi:10.1039/c3tc30721b
    Sponsors
    The authors are indebted to Dr Zixing Wang and Prof. Jian Li in School of Materials, Arizona State University for providing some chemicals. Financial support from the National Natural Science Foundation of China (Grant no. 61177030), the Chinese Ministry of Education under the program for New Century Excellent Talents in Universities (Grant no. NCET-11-0705), the start-up Grant (SWU111057) from Southwest University, KAUST, FiDiPro program, Academy of Finland, is acknowledged.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Journal of Materials Chemistry C
    DOI
    10.1039/c3tc30721b
    ae974a485f413a2113503eed53cd6c53
    10.1039/c3tc30721b
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; KAUST Solar Center (KSC)

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