期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 144, 期 -, 页码 600-607出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2015.10.010
关键词
Organic solar cell; Transparent electrode; ITO free electrode
资金
- EPSRC via the E-Futures Doctoral Training Centre in Interdisciplinary Energy Research [EP/G037477/1]
- UK EPSRC [EP/J017361/1, EP/I028641/1]
- EPSRC [EP/I028641/1, EP/N008065/1, EP/J017361/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [1247551, EP/I028641/1, EP/J017361/1, EP/N008065/1] Funding Source: researchfish
We have explored the fabrication of indium-free electrodes for use in a PCDTBT:PC70BM organic photovoltaic (OPV) device, and compare different multilayer electrodes as the device anode. Two oxide/metal/oxide structures were investigated that consisted of MoO3/Ag/MoO3 (MAM) and TeO2/Ag/MoO3 (TAM) multilayers. Using scanning electron microscopy measurements, we find that the electrode utilising a TeO2 seed layer encouraged the growth of a more continuous silver layer at low film thickness relative to an MoO3 seed layer, and thus combines enhanced optical transmission (by around 7%) with low sheet resistance (14 Omega/square). This enhanced optical transmittance results in an increased short-circuit current in photovoltaic cells, with TAM-based devices having a power conversion efficiency around 6% higher than those fabricated using a comparable MAM electrode. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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