Structure–Property Relations in Polymer:Fullerene Blends for Organic Solar Cells
Keywords:Charge generation, Charge transport, Microstructure, Organic solar cells, Ultrafast spectroscopy
AbstractOrganic solar cells consist of thin films combining an electron donor (often a conjugated polymer) with an electron acceptor (often a fullerene derivative), in a blend commonly referred to as bulk heterojunction material. Charge separation between the donor and the acceptor leads to the generation of carriers, which can be extracted from photovoltaic devices in the form of photocurrent. The generation mechanism of free, extractable charges has caused a lot of controversial discussion in literature. Our research has shown that all the steps involved in charge generation are strongly dependent on the arrangement of the donor and the acceptor (i.e. the structure) of the bulk heterojunction.
How to Cite
N. Banerji, Chimia 2016, 70, 512, DOI: 10.2533/chimia.2016.512.
Copyright (c) 2016 Swiss Chemical Society
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