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학술지 A New Poly(thienylenevinylene) Derivative with High Mobility and Oxidative Stability for Organic Thin-Film Transistors and Solar Cells
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저자
임보규, 백강준, 정형구, 조장, 김형수, 박정우, 노용영, 박두진, 박정호, 박지웅, 김동유
발행일
200907
출처
Advanced Materials, v.21 no.27, pp.2808-2814
ISSN
0935-9648
출판사
WILEY-VCH Verlag GmbH & Co. KGaA
DOI
https://dx.doi.org/10.1002/adma.200803700
협약과제
08MC4100, 개별물품 단위 응용을 위한 차세대 RFID 기술 개발, 채종석
초록
A study was conducted to demonstrate a high-performance organic thin-film transistor (OTFT) with a dithienyylethylene-containing alkyl thiophene copolymer, poly(1,2-(E)-bis[2-(5-bromo-3-dodecyl-2-thienyl)-5-thienyl]ethene) (PEVT12T). An unsubstituted dithienyylethylene unit was symmetrically inserted between dodecylthiophenes to conduct the investigations. It was also demonstrated that the introduction of alkyl groups as electron-releasing groups decreased the oxidation potential of the thiophene ring by approximately 0.20 V. PETV12T-based OTFTs showed a high charge-carrier mobility of 0.15 cm 2 V-1 s-1 with a relatively high oxidative stability. The thermal properties of PETV12T were also investigated using differential scanning calorimetry (DSC) with a scan rate of 10 °C min -1. It was observed that thermal behavior of PETV12T was similar to that of the high-performance liquid-crystalline conjugated polymers pBTTT and PQT.
KSP 제안 키워드
Conjugated polymer(PFO-co-MEH-PPV), Differential scanning calorimetry(photo-DSC), Differential scanning calorimetry (dsc), First Stokes(S1), High Mobility, High performance, Organic thin-film transistors, Solar Cells, Thin-Film Transistor(TFT), alkyl thiophene(Poly), high charge-carrier mobility