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제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Properties of Alternating Copolymers Based on Fluorinated Phenazine

2019년 8월 20일 11시 14분 35초
POLY.P-11 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 18일 (금요일) 11:00~12:30
Polymer Chemistry
저자 및
JoungJin Im, Won Ki Lee1, Youngeup Jin2,*
Industry chemistry, Pukyong National University, Korea
1Department of Polymer?Engineering, Pukyong National University, Korea
2Engineering Chemistry, Pukyong National University, Korea
Recently, there are many research of renewable energy. PSC(polymer solar cell) having remarkable advantage including flexible, large area application and facile tuning by substituting functional group is one of them. In the active layer material for high efficiency, to obtain proper HOMO(highest occupied molecular orbital) and LUMO(lowest unoccupied molecular orbital) energy level and high charge carrier mobility of polymers, D-A alternating structure was introduced. Benzodithiophene was used as donor unit, And diflourinated phenazine(DFPz) was used as accepter unit. Phenazine unit can be fine materials for the PSC because it has C=N bond (strong electronegativity) and extended π conjugated structure for high hole mobility. To check the effect of alkyl side chain, either linear alkyl chain or bulky alkyl chain was introduced to the resulting copolymers. As a result, PBDT-DT_DoDFPz was red-shifted than PBDT-DT-DHDFPz. This can be attributed to that the polymer with linear alkyl chain was better packed in film than polymer with a branched alkyl side chain. Finally, the polymer with linear alkyl chain (PBDT-DT-DoFPz) achieved 3.41% of PCE.