Jump to main content
Jump to site search

Issue 19, 2011
Previous Article Next Article

Diketopyrrolopyrrole-based acceptor polymers for photovoltaic application

Author affiliations

Abstract

Developing new acceptor materials as alternatives to fullerene acceptors remains a challenge in the field of organic photovoltaics. We report on the synthesis and optoelectronic properties of three acceptor polymers bearing diketopyrrolopyrrole units in the main chain (PA, PB and PC). Their performance as the acceptor material in bulk heterojunction solar cells using P3HT as the donor material has been tested. The solar cells show relatively high open-circuit voltages (≥0.9 V) but low fill factors and short-circuit current densities limit the photovoltaic device performance. Formation of free charge carriers and low electron mobility are identified as the major obstacles. In blends of P3HT with PA or PB charge formation is limited, while for the P3HT:PC blend photogenerated charges recombine into the PC triplet state before they can separate, unless assisted by a reverse electric field.

Graphical abstract: Diketopyrrolopyrrole-based acceptor polymers for photovoltaic application

Back to tab navigation

Supplementary files

Publication details

The article was received on 05 Feb 2011, accepted on 07 Mar 2011 and first published on 01 Apr 2011


Article type: Paper
DOI: 10.1039/C1CP20313D
Citation: Phys. Chem. Chem. Phys., 2011,13, 8931-8939

  •   Request permissions

    Diketopyrrolopyrrole-based acceptor polymers for photovoltaic application

    M. Falzon, A. P. Zoombelt, M. M. Wienk and R. A. J. Janssen, Phys. Chem. Chem. Phys., 2011, 13, 8931
    DOI: 10.1039/C1CP20313D

Search articles by author

Spotlight

Advertisements