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  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

대한화학회 제124회 학술발표회 및 총회 Single-Crystal Poly[4-(4,4-dihexadecyl-4H-cyclopenta[1,2-b:5,4- b′]dithiophen-2-yl)-alt-[1,2,5]thiadiazolo[3,4‑c]pyridine] Nanowires with Ultrahigh Mobility

등록일
2019년 9월 20일 11시 19분 47초
접수번호
3204
발표코드
KCS.O-11 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 11시 : 05분
발표형식
구두발표
발표분야
KCS - Oral Presentation for 2019 DOW Korea Award
저자 및
공동저자
Yoonkyoung Park, Jin Won Jung, Hungu Kang, Jhumur Seth, Youngjong Kang, Myong Mo Sung*
Department of Chemistry, Hanyang University, Korea
We fabricated single-crystal poly[4-(4,4-dihexadecyl-4H-cyclopenta[1,2-b:5,4-b′]-dithiophen-2-yl)-alt-[1,2,5]thiadiazolo-[3,4-c]pyridine] (PCDTPT) nanowires with ultrahigh mobility using a liquid-bridge-mediated nanotransfer molding method. The structural analysis of the singlecrystal PCDTPT nanowires reveals that PCDTPT crystals have a triclinic structure, and the nanowires grow parallel to PCDTPT backbone chains, which provide important insights into its intrinsic charge transport. The single-crystal PCDTPT nanowire exhibits a superior charge carrier mobility of 72.94 ± 18.02 cm2 V−1 s−1 (maximum mobility up to 92.64 cm2 V−1 s−1), which is a record high value among conjugated polymers to date. In the single-crystal PCDTPT nanowire, the backbone chains in the linear structure along the nanowire growth axis lead to strong backbone delocalization, resulting in highly conductive polymer backbones and a drastic increase in charge carrier mobility. In addition, the single-crystal PCDTPT nanowire shows good environmental stability under air conditions compared to small-molecule organic semiconductors.

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