화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2014년 가을 (10/06 ~ 10/08, 제주 ICC)
권호 39권 2호
발표분야 분자전자 부문위원회
제목 Enhanced Charge Carrier Mobility in Field-Effect Transistors Made of Soluble π-Conjugated Polymer Achieved by Macroscopic Chain Alignment
초록 The newly synthesized PTDPP-DTTE exhibited high crystallinity in a film state following thermal treatment, with the corresponding TFT device exhibiting a high carrier mobility. In this study, we then applied two extrinsic treatments to the PTDPP-DTTE polymer, solution shearing (SS) and template-guided solution shearing (TGSS) in order to increase the anisotropy of the polymer chains in order to increase the carrier mobility in the shearing direction. Field-effect transistors composed of micro-patterned prism arrays of PTDPP-DTTE displayed the highest mobility of approximately 7.3 cm2 V-1 s-1, which is higher than that obtained from TFTs treated under the solution-shearing process. Therefore, the TGSS method is recognized as a very promising method to increase the performance of electronic devices requiring high anisotropy of the conjugated molecules and polymers.
저자 신지철1, 홍태량1, 이태완1, 김아련2, 김윤호2, 조민주1, 최동훈1
소속 1고려대, 2한국화학(연)
키워드 conjugated copolymer; field-effect transistor
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