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Issue 79, 2015
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Facile synthesis and photovoltaic applications of a new alkylated bismethano fullerene as electron acceptor for high open circuit voltage solar cells

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Abstract

It is crucial to control the lowest unoccupied molecular orbital (LUMO) of electron accepting materials for producing efficient charge transfer in bulk heterojunction (BHJ) solar cells. Due to their high LUMO level, soluble bis-adducts of C60 are of high interest for improving the Voc in BHJ solar cells. In this work, we have developed a novel bis-4-propylpentyl[6,6]methanofullerene bis-adduct, NCBA, using a alkyl solubilizing group. The optoelectronic, electrochemical and photovoltaic properties of this bis-product are investigated. NCBA is successfully applied as the electron acceptor with poly(3-hexylthiophene) (P3HT) in a BHJ solar cell showing a high Voc of 0.73 V.

Graphical abstract: Facile synthesis and photovoltaic applications of a new alkylated bismethano fullerene as electron acceptor for high open circuit voltage solar cells

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Publication details

The article was received on 28 May 2015, accepted on 21 Jul 2015 and first published on 21 Jul 2015


Article type: Paper
DOI: 10.1039/C5RA10089E
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Citation: RSC Adv., 2015,5, 64724-64730
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    Facile synthesis and photovoltaic applications of a new alkylated bismethano fullerene as electron acceptor for high open circuit voltage solar cells

    D. Baran, S. Erten-Ela, A. Kratzer, T. Ameri, C. J. Brabec and A. Hirsch, RSC Adv., 2015, 5, 64724
    DOI: 10.1039/C5RA10089E

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