Jump to main content
Jump to site search


Significantly improving the efficiency of polymer solar cells through incorporating noncovalent conformational locks

Author affiliations

Abstract

Noncovalent conformational locks have been widely employed to construct highly planar and rigid conjugated systems for organic electronics. In this paper, two conjugated polymers (PDTffBT–TVT and PDTffBT–TVTOEt) were synthesized through the Stille coupling of 4,7-di(thien-2-yl)-5,6-difluoro-2,1,3-benzothiadiazole (DTffBT) with (E)-2-(2-(thiophen-2-yl)vinyl)thiophene (TVT) and (E)-1,2-diethoxy-1,2-di(thiophen-2-yl)ethane (TVTOEt), respectively, to investigate the effect of incorporation of the S⋯O noncovalent conformational locks on the performance of the polymer based bulk heterojunction solar cells. The physicochemical properties and photovoltaic characteristics of the conjugated polymers were fully investigated with different characterization techniques, which demonstrated that incorporation of the noncovalent conformational locks improved the rigidity of the backbone, leading to enhanced charge transport mobilities, and thus higher Jsc and FF. As a result, the efficiencies of the solar cells were significantly improved from 2.59% (PDTffBT–TVT) to 6.16% (PDTffBT–TVTOEt).

Graphical abstract: Significantly improving the efficiency of polymer solar cells through incorporating noncovalent conformational locks

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 05 Nov 2016, accepted on 25 Jan 2017, published on 06 Feb 2017 and first published online on 06 Feb 2017


Article type: Research Article
DOI: 10.1039/C6QM00296J
Citation: Mater. Chem. Front., 2017, Advance Article
  •   Request permissions

    Significantly improving the efficiency of polymer solar cells through incorporating noncovalent conformational locks

    L. Lv, X. Wang, T. Dong, X. Wang, X. Wu, L. Yang and H. Huang, Mater. Chem. Front., 2017, Advance Article , DOI: 10.1039/C6QM00296J

Search articles by author