Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 110, Issue -, Pages 43-48Publisher
ELSEVIER
DOI: 10.1016/j.solmat.2012.11.015
Keywords
Morphology; OPV; Nanoparticle; Solar paint
Funding
- University of Newcastle
- Australian Solar Institute
- Indonesian Directorate General of Higher Education (DIKTI)
- Commonwealth of Australia through the Access to Major Research Facilities Programme
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
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Poly(3-hexylthiophene) (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blends are the most studied organic photovoltaic materials system and conventionally are processed into thin films via organic solvent based routes. Recently, the fabrication of OPV devices from water-dispersed nanoparticulate materials (solar paint) has attracted increasing interest since it offers the potential of morphological control coupled with device processing in the absence of an organic solvent. However, to date the reported efficiencies of nanoparticulate organic photovoltaic (NP-OPV) devices have been disappointingly low, reflecting a lack of understanding of the structural motif. In this letter, we probe directly the structural motif of P3HT:PCBM NP-OPV devices and show how NP morphology determines device function. (C) 2012 Elsevier B.V. All rights reserved.
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