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Kim, Byeong-Su
Soft and Hybrid Nanomaterials Lab
Research Interests
  • Carbon materials, polymer, Layer-by-Layer (LbL) assembly, hyperbranched polymer, polyglycerol (PG), bio-applications


Highly efficient inverted polymer light-emitting diodes using surface modifications of ​ZnO layer

DC Field Value Language Lee, Bo Ram ko Jung, Eui Dae ko Park, Ji Sun ko Nam, Yun Seok ko Min, Sa Hoon ko Kim, Byeong-Su ko Lee, Kyung-Min ko Jeong, Jong-Ryul ko Friend, Richard H. ko Kim, Ji-Seon ko Kim, Sang Ouk ko Song, Myoung Hoon ko 2014-11-11T00:12:06Z - 2014-10-14 ko 2014-09 ko
dc.identifier.citation NATURE COMMUNICATIONS, v.5, pp.4840 ko
dc.identifier.issn 2041-1723 ko
dc.identifier.uri -
dc.description.abstract Organic light-emitting diodes have been recently focused for flexible display and solid-state lighting applications and so much effort has been devoted to achieve highly efficient organic light-emitting diodes. Here, we improve the efficiency of inverted polymer light-emitting diodes by introducing a spontaneously formed ripple-shaped nanostructure of ​ZnO and applying an amine-based polar solvent treatment to the nanostructure of ​ZnO. The nanostructure of the ​ZnO layer improves the extraction of the waveguide modes inside the device structure, and a ​2-ME+​EA interlayer enhances the electron injection and hole blocking in addition to reducing exciton quenching between the polar-solvent-treated ​ZnO and the emissive layer. Therefore, our optimized inverted polymer light-emitting diodes have a luminous efficiency of 61.6 cd A−1 and an external quantum efficiency of 17.8%, which are the highest efficiency values among polymer-based fluorescent light-emitting diodes that contain a single emissive layer. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.title Highly efficient inverted polymer light-emitting diodes using surface modifications of ​ZnO layer ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84923363483 ko
dc.identifier.wosid 000342983000005 ko
dc.type.rims ART ko
dc.description.wostc 0 * 2015-05-06 *
dc.identifier.doi 10.1038/ncomms5840 ko
dc.identifier.url ko
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