Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2014-07-31

Journal: JOURNAL OF PHYSICAL CHEMISTRY C

Included Journals: Scopus、EI、SCIE

Volume: 118

Issue: 30,SI

Page Number: 16851-16855

ISSN: 1932-7447

Abstract: A D-pi-A type small molecule PTZ1 and an A-pi-D-pi-A type small molecule PTZ2 with phenothiazine as the central building block and dicyanovinyl as the electron-withdrawing end-group have been designed and synthesized. Compared with D-pi-A type donor material PTZ1, the donor material PTZ2 with A-pi-D-pi-A configuration shows much wider response to solar light. The donor material PTZ1 possesses more positive highest occupied molecular orbital level, and higher V obtained for devices with PTZ1/PC71BM blend as the active layer. An improved efficiency of 3.25% was obtained for the PTZ2/PC71BM based solar cells.