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제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 A Series of Novel Conjugated Polymers Based on Fluorene and Fluorinated Quinoxaline for OPVs

등록일
2018년 8월 23일 11시 00분 10초
접수번호
1327
발표코드
POLY.P-21 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 18일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Polymer Chemistry
저자 및
공동저자
Jihyeon Kwon, Youngeup Jin1,*
Industrial Chemistry, Pukyong National University, Korea
1Engineering Chemistry, Pukyong National University, Korea
The novel copolymers using fluorene and fluorinated quinoxaline were synthesized by Suzuki and Stille coupling reactions. The polymers had good solubility in organic solvent such as benzene derivative (toluene, chlorobenzene and o-dichlorobenzene). The absorption spectra in solution had maximum peak at 442 to 498 nm and in solid film had maximum peaks at 448 to 543 nm. These polymer have improved π–π interchain interactions in the film state compared to those in solution. These polymer observed a narrow bandgap 1.93 to 2.14eV. A highest occupied molecular orbital (HOMO) energy level showed at -5.59 to -5.67 eV and lowest unoccupied molecular orbital (LUMO) energy of -3.51 to –3.72 eV. PSCs made from copolymer:PC70BM (1:1.5 wt%) + 3vol% DIO blends showed maximum power conversion effiencies (PCE) values of (3.98, 2.91 , 3.33, 3.55 and 3.07%), respectively.

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