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학술발표회초록보기

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  • 02월 26일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제115회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Direct C-H arylation synthesis of (DAD`A`) constituted alternating polymers with low bandgaps and their photovoltaic performance

등록일
2015년 2월 26일 10시 31분 59초
접수번호
1381
발표코드
KCS2.O-6 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 10시 : 30분
발표형식
구두발표
발표분야
Oral Presentation for Young International Chemists
저자 및
공동저자
MOHAMED MOHAMED SHAKERABDEL W, 이재석1,*
광주과학기술원(GIST) 나노바이오재료전자공학과, Korea
1광주과학기술원(GIST) 신소재공학과, Korea

A series of new constituted (DAD`A`)-conjugated polymers were synthesized via C-H arylation with the aid of a Pd(OAc)2/Bu4NBr catalytic system and were based on 4,7-bis(4-hexylthiophen-2-yl)- 2,1,3-benzothiadiazole (HT.BT.HT), which alternated with 3,4-ethylenedioxythiophene (EDOT) as a second donor and a lactam- and/or imide-containing material as a second acceptor. The synthesis methodology avoided the drawbacks of Stille and Suzuki coupling and obtained high yields. All of the new polymers possessed broader absorption windows with low energy bandgaps (1.34-1.64 eV), as well as low-lying HOMO energy levels. The prescreening of these polymers as an active material in bulk heterojunction solar cells was investigated and power conversion efficiency of 2.36% was achieved.


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