Indium-free multilayer semi-transparent electrodes for polymer solar cells
Indium-free multilayer semi-transparent electrodes for polymer solar cells
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DOI:
10.1016/j.solmat.2015.10.010
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发表时间:
2016-01-01
影响因子:
6.9
通讯作者:
Lidzey, David G.
中科院分区:
文献类型:
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作者:
Barrows, Alexander T.;Masters, Rob;Lidzey, David G.
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/).