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dc.contributor.authorYan, Feien
dc.contributor.authorChen, Ruien
dc.contributor.authorSun, Handongen
dc.contributor.authorSun, Xiao Weien
dc.identifier.citationYan, F., Chen, R., Sun, H., & Wei Sun, X. (2014). Organic light-emitting diodes with a spacer enhanced exciplex emission. Applied Physics Letters, 104(15), 153302-.en
dc.description.abstractBy introducing a spacer molecule into the blended exciplex emissive layer, the performance of the bulk heterojunction exciplex organic light-emitting diodes (OLEDs) was improved dramatically; the maximum luminous efficiency was enhanced by about 22% from 7.9 cd/A to 9.7 cd/A, and the luminous efficiency drop was reduced by 28% at 400 mA/cm2. Besides the suppressed annihilation of exciton, the time-resolved photoluminescence measurements indicated that the spacer enhanced the delayed fluorescence through increasing the backward intersystem crossing rate from the triplet to singlet exciplex state. This method is useful for developing high performance exciplex OLEDs.en
dc.relation.ispartofseriesApplied physics lettersen
dc.rights© 2014 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC. The paper can be found at the following official DOI: [].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectDRNTU::Engineering::Electrical and electronic engineering::Molecular electronicsen
dc.titleOrganic light-emitting diodes with a spacer enhanced exciplex emissionen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.description.versionPublished versionen
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