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Issue 16, 2011
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Role of photoactive layer morphology in high fill factor all-polymer bulk heterojunction solar cells

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Abstract

We report on the realization of all-polymer solar cells based on blends of poly(3-hexylthiophene-2,5-diyl) (P3HT) as a donor and poly{[N,N′-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5′-(2,2′-bithiophene)} (P(NDI2OD-T2)) as an acceptor. High fill factors are demonstrated for the first time in this class of devices suggesting high dissociation efficiency for the bounded electron–hole pairs and balanced electron and hole mobility along the thin films. The use of the high-mobility n-type P(NDI2OD-T2) polymer enables us to overcome one of the problems limiting the efficiency of all-polymer solar cells, resulting in fill factors comparable with those reported for fullerene-based devices.

Graphical abstract: Role of photoactive layer morphology in high fill factor all-polymer bulk heterojunction solar cells

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Publication details

The article was received on 09 Oct 2010, accepted on 06 Jan 2011 and first published on 03 Feb 2011


Article type: Paper
DOI: 10.1039/C0JM03405C
Citation: J. Mater. Chem., 2011,21, 5891-5896
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    Role of photoactive layer morphology in high fill factor all-polymer bulk heterojunction solar cells

    S. Fabiano, Z. Chen, S. Vahedi, A. Facchetti, B. Pignataro and M. A. Loi, J. Mater. Chem., 2011, 21, 5891
    DOI: 10.1039/C0JM03405C

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