Wide Band-Gap 3,4-Difluorothiophene-Based Polymer with 7% Solar Cell Efficiency: an Alternative to P3HT
Name:
acs2Echemmater2E5b01520.pdf
Size:
1.415Mb
Format:
PDF
Description:
Accepted Manuscript
Type
ArticleKAUST Department
Chemical Science ProgramKAUST Solar Center (KSC)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2015-06-12Online Publication Date
2015-06-12Print Publication Date
2015-06-23Permanent link to this record
http://hdl.handle.net/10754/556079
Metadata
Show full item recordAbstract
We report on a wide band-gap polymer donor composed of benzo[1,2-b:4,5-b']dithiophene (BDT) and 3,4-difluorothiophene ([2F]T) units (Eopt ~2.1 eV), and show that the fluorinated analog PBDT[2F]T performs significantly better than its non-fluorinated counterpart PBDT[2H]T in BHJ solar cells with PC71BM. While control P3HT- and PBDT[2H]T-based devices yield PCEs of ca. 4% and 3% (Max.) respectively, PBDT[2F]T-based devices reach PCEs of ca. 7%, combining a large Voc of ca. 0.9 V and short-circuit current values (ca. 10.7 mA/cm2) comparable to those of the best P3HT-based control devices.Citation
Wide Band-Gap 3,4-Difluorothiophene-Based Polymer with 7% Solar Cell Efficiency: an Alternative to P3HT 2015:150527144544009 Chemistry of MaterialsPublisher
American Chemical Society (ACS)Journal
Chemistry of MaterialsAdditional Links
http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.5b01520ae974a485f413a2113503eed53cd6c53
10.1021/acs.chemmater.5b01520