Synthesis, Characterization and Properties of Novel Blue Light Emitting Discrete π-Functional Polymer Consisting of Carbazole and Anthracene Units and Their Applications in Polymer Light Emitting Diodes

Ram Gopal; Yi-Chiang Huang; Hsu-Feng Lee; Ming-Sien Chang; Wen-Yao Huang

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자료유형: 학술저널

저자정보: Ram Gopal (National Sun Yat-Sen University) Yi-Chiang Huang (National Sun Yat-Sen University) Hsu-Feng Lee (National Sun Yat-Sen University) Ming-Sien Chang (National Sun Yat-Sen University) Wen-Yao Huang (National Sun Yat-Sen University)

저널정보: 대한금속·재료학회 Electronic Materials Letters Electronic Materials Letters Vol.13 No.3

발행연도: 2017.1

수록면: 240 - 248 (9page)

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A new novel blue light emitting polymer containing carbazole andanthracene derivatives has been successfully synthesized via polycondensationchemical reaction of diol and difluoro monomers. An effort has been madeto raise the band gap of blue light emitter by lowering the conjugation extentin the backbone. The synthesized blue polymer exhibits decent solubility,good process ability, high thermal stability, high glass transition temperature(272 °C) and the decomposition temperature of 358 °C. The UV-visabsorption spectra and photoluminescence spectra depict that the lightemission lies in blue region. The solid state photoluminescence (PL) spectraof the polymer (λPL = 456 nm) shows red shift (Δλ = 37 nm) as comparedwith the corresponding solution PL spectra, presumably due to lowerintermolecular distance in solid state. The multi-layered polymer lightemitting diode was fabricated, using blue polymer with ITO/PEDOT: PSS/BP/LiF/Al architecture. The luminance-voltage (L-V) and current densityvoltage(J-V) curves show a maximum luminance of 7544 cd m−2, amaximum emission efficiency of 4.2 cd A−1, a maximum current density of453 mA cm−2 at a turn-on voltage of 4.5 V. Moreover, the PLED instigatepure blue EL emission, stable at 436 nm with outstanding CIE coordinates of(x = 0.15, y = 0.08), which is close to the pure NTSC blue coordinates of(0.14, 0.08).

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참고문헌 신청

R. H. Friend / 1999 / Nature 397:121

J. Burroughes / 1990 / Nature 347:539

M. Berggren / 1994 / Nature 372:444

J. Ye / 2013 / Chem. Mater 25:2630

L. J. Rothberg / 1996 / J. Mater. Res 11:3174

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