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Park, Lee Soon
School of Materials Science and Engineering
Research Interests
  • Flexible OLED new materials, process and fabrication
  • Touch Screen Panel(TSP) new materials and process new materials and process
  • Nano-materials synthesis and application (Ag nano-wire and metal mesh electrode)

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Synthesis and electroluminescence properties of heterocyclic conjugated copolymers and blends

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Title
Synthesis and electroluminescence properties of heterocyclic conjugated copolymers and blends
Author
Park, Lee SoonRyu, Hyeon SoolSeo, Hyeon JinKim, Woo SikLee, Dong HoMin, Kyung EunSeo, Kwan HoKang, Inn Kyu
Keywords
Heterocyclic conjugated copolymer; Horner-Emmons condensation; Light emitting layers; Light-emitting diode
Issue Date
2002-05
Publisher
TAYLOR & FRANCIS LTD
Citation
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.377, no., pp.37 - 40
Abstract
Improved electroluminescent efficiencies in polymer light-emitting diodes(LEDs) have been reported to be obtained either by constructing multi-layer devices or by using polymer blends in a light emitting layer. In this work, conjugated copolymers, poly((PZV-PV)-co-(CZV-PV)) containing (N-2-ethylhexyl)-3,6-phenothiazinylene vinylene(PZV) unit and (N-2-ethylhexyl)-3,6-carbazolylene vinylene(CZV) unit in different ratio were synthesized by Homer-Emmons reaction utilizing potassium t-butoxide. Homopolymers, poly(PZV-PV) and poly(CZV-PV) were also synthesized. Polymer LED's fabricated with poly(PZV-PV) and poly(CZV-PV) homopolymers as light emitting layers exhibited EL maximum at 570nm and 500nm, respectively. LED's made with poly((PZV-PV)-co-(CZV-PV)) copolymers, however, showed EL maxima shifted to longer wavelengths
URI
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DOI
10.1080/10587250290088483
ISSN
1542-1406
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MSE_Journal Papers
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