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Effect of using thienothiophene spacers of phenazine based polymers
김효열 , 최민희 , 한용운 , 문두경
UCI I410-ECN-0102-2021-500-001042345
이 자료는 4페이지 이하의 자료입니다.
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Bulk-heterojunction(BHJ) organic photovoltaics (OPVs) have attracted tremendous attention due to their unique advantages including low cost, light weight, and potential uses in flexible and large-area devices. We designed and synthesized D-π-A copolymers based on BDP donor unit and phenazine (Phz) acceptor unit bridged thienothiophene. BDP, which is a very important donor unit in high-performance D-A copolymer photovoltaic materials, has a symmetric and planar conjugated structure, and hence tight and regular stacking can be expected for the conjugated polymers. Thienothiophene bridge is propitious to enhance both hole mobility and photovoltaic performance of the D-π-A copolymers. In this study, we designed and synthesized a new thieno[3,2-b] thiophene bridged D-π-A copolymer, PBDP-DttPhz. The synthesized polymer is showed physical, optical, electrochemical and photovoltaic properties.

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