liu.seSearch for publications in DiVA
Change search
Link to record
Permanent link

Direct link
Li, Cuihong
Publications (1 of 1) Show all publications
Du, C., Li, C., Li, W., Chen, X., Bo, Z., Veit, C., . . . Zhang, F. (2011). 9-Alkylidene-9H-Fluorene-Containing Polymer for High-Efficiency Polymer Solar Cells. Macromolecules, 44(19), 7617-7624
Open this publication in new window or tab >>9-Alkylidene-9H-Fluorene-Containing Polymer for High-Efficiency Polymer Solar Cells
Show others...
2011 (English)In: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 44, no 19, p. 7617-7624Article in journal (Refereed) Published
Abstract [en]

A novel donor-acceptor copolymer containing 9-alkylidene-9H-fluorene unit in the main chain, poly[9-(1-hexylheptylidene)-2,7-fluorene-alt-5, 5-(4,7-di-2-thienyl-5,6-dialkoxy-2,1,3-benzothiadiazole)] (PAFDTBT), has been synthesized and evaluated in bulk heterojunction polymer solar cells (BHJ PSCs). The polymer possesses a low band gap of 1.84 eV, a low-lying HOMO energy level (5.32 eV), and excellent solubility in common organic solvents. PSCs based on PAFDTBT and (6,6)-phenyl-C(71)-butyric add methyl ester (PC(71)BM) demonstrate a power conversion efficiency (PCE) of 6.2% with a high fill factor (FF) of 0.70, which indicates that 9-alkylidene-9H-fluorene can be a very useful building block for constructing narrow band gap conjugated polymers for high-efficiency BHJ PSCs.

Place, publisher, year, edition, pages
American Chemical Society, 2011
National Category
Engineering and Technology
urn:nbn:se:liu:diva-71637 (URN)10.1021/ma201477b (DOI)000295487600015 ()

Funding Agencies|NSF of China|2083400650821062|973 Program|2011CB9357032009CB-623603|IC, CAS from Swedish Research Council (VR)||

Available from: 2011-10-27 Created: 2011-10-27 Last updated: 2017-12-08

Search in DiVA

Show all publications