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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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Alternating Copolymers of N-(2-Ethylhexyl)-Carbazole Derivatives with Aniline Units: Synthesis and Properties

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Title
Alternating Copolymers of N-(2-Ethylhexyl)-Carbazole Derivatives with Aniline Units: Synthesis and Properties
Author
Park, Lee SoonWang, HuiRyu, Jeong TakKim, Dae HwanChoi, Byeong DaeKwon, Young HwanHan, Yoon Soo
Keywords
alternating copolymer, carbazole, palladium-catalyzed polycondensation, triarylamine
Issue Date
2007-01
Publisher
TAYLOR & FRANCIS LTD
Citation
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.459, no., pp.85 - 94
Abstract
Alternating copolymers such as P(3,6-EHCZ-alt-Al), P(Bis-EHCZ-alt-Al) and P(2,7-EHCZ-alt-Al), based on blue-emitting carbazole and hole-transporting triarylamine units in the polymer backbone, were successfully synthesized by using palladium- catalyzed polycondensation reaction. P(Bis-EHCZ-alt-Al) exhibited blue shift both in UV-Vis absorption and PL emission, while P(2,7-EHCZ-alt-Al) showed red shift in UV-Vis absorption and blue shift in PL emission, compared to P(3,6-EHCZ-alt-Al). It was observed from the optical and electrochemical characterization that band gap energy (2.91 3.07 eV) and HOMO (5.25 5.11 eV) levels of the copolymers could be fine-tuned by the carbazole content in the repeating unit and different reaction linkage on the carbazole ring.
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DOI
http://www.tandfonline.com/doi/abs/10.1080/15421400600932272
ISSN
1542-1406
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MSE_Journal Papers
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