A Wide-Band Gap Copolymer Donor for Efficient Fullerene-Free Solar Cells.

ABSTRACT: The performance of a wide-band gap copolymer donor PDTPO-BDTT in nonfullerene solar cells was investigated. These solar cells presented broad photoresponse and high short-circuit current density. PDTPO-BDTT:IT-4F and PDTPO-BDTT:NNFA-4F solar cells with more efficient photoluminescence quenching and better film morphology gave decent power conversion efficiencies of 10.96 and 10.04%, respectively, which are much higher than those of the previously reported PDTPO-BDTT:fullerene solar cells.

SUBMITTER: Zhu J 

PROVIDER: S-EPMC6756744 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature