New 1,7‐Disubstituted Perylenediimides as Molecular Acceptors for Organic Solar Cells

Bulletin of the Korean Chemical Society

Mi‐¹  Nam Kang¹  Jong Baek Park¹  Hoon Hwang²  Ung Chan Yoon³  Hea Jung Park⁴  Jeong Kim⁴  In‐⁴  Do‐⁵ 

[1] 735 Republic of Korea;743 Republic of Korea;Department of Chemistry The Catholic University of Korea Gyeonggi‐Department of Chemistry and Chemistry Institute for Functional Materials Pusan National University Busan 609‐do 420‐

关键词: Perylenediimides;    Electron acceptor;    Organic photovoltaic cell;   

DOI  :  10.1002/bkcs.11118

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Two perylenediimides (PDIs), PT and PT2, functionalized with thiophene heterocycles on the 1,7‐positions of the bay region were synthesized and utilized in inverted bulk‐heterojunction (BHJ) polymer solar cells as acceptors in the photoactive layer. The synthesized PDIs were thermally stable up to 453°C and soluble in chlorinated solvents such as dichloromethane and chloroform. PT or PT2 was blended with poly[4,8‐bis(5‐(2‐ethylhexyl)thiophen‐2‐yl)benzo[1,2‐b4,5‐b′]bithiophene‐co‐3‐fluorothieno[3,4‐b]thiophene‐2‐carboxylate] (PCE‐10) as a donor material. The inverted BHJ solar cell fabricated using the PCE‐10PT photoactive layer showed the highest power conversion efficiency (PCE) of 2.06%. Film morphology studies of PCE‐10PDI blends revealed a relationship between the film nanostructure and device performance.

【 授权许可】

Unknown