Impact of dye end groups on acceptor–donor–acceptor type molecules for solution-processed photovoltaic cells

Content Provider	Semantic Scholar
Author	He, Guangrui Wan, Xiangjian Liu, Yongsheng Zhou, Jiaoyan Long, Guankui Zhang, Mingtao Chen, Yongsheng
Copyright Year	2012
Abstract	Two new oligothiophene derivatives of the acceptor–donor–acceptor type, incorporating double rhodanine or 1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione units as the terminal acceptor groups, D2R(8 + 2)7T and DTDMP7T, have been designed and synthesized for solution-processable small molecule BHJ solar cells. The impacts of these different end dye moieties on their optical, electrochemical properties, morphology, mobility and solar cell performance were studied. Both compounds exhibit broad and highly efficient solar absorption with low bandgaps of 1.70 and 1.62 eV for D2R(8 + 2)7T and DTDMP7T, respectively. The D2R(8 + 2)7T and DTDMP7T based BHJ solar cell devices achieved a PCE of 2.46% and 4.05%, respectively, under the illumination of AM.1.5, 100 mW cm−2.
Starting Page	9173
Ending Page	9180
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1039/C2JM30194F
Volume Number	22
Alternate Webpage(s)	http://www.rsc.org/suppdata/jm/c2/c2jm30194f/c2jm30194f.pdf
Alternate Webpage(s)	http://nanocenter.nankai.edu.cn/dowmload/2012/2012-7.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C2JM30194F
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article