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| Naji, M. |
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| Motta, Antonella |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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Wang, Zhenwei
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Publications (5/5 displayed)
- 2018Atomic-Layer-Deposited AZO Outperforms ITO in High-Efficiency Polymer Solar Cellscitations
- 2017Oxidant-Dependent Thermoelectric Properties of Undoped ZnO Films by Atomic Layer Depositioncitations
- 2017Experimental Route to Scanning Probe Hot Electron Nanoscopy (HENs) Applied to 2D Materialcitations
- 2017Atomic-Layer-Deposited SnO2 as Gate Electrode for Indium-Free Transparent Electronicscitations
- 2015Highly stable thin film transistors using multilayer channel structurecitations
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article
Atomic-Layer-Deposited AZO Outperforms ITO in High-Efficiency Polymer Solar Cells
Abstract
Tin-doped indium oxide (ITO) transparent conducting electrodes are widely used across the display industry, and are currently the cornerstone of photovoltaic device developments, taking a substantial share in the manufacturing cost of large-area modules. However, cost and supply considerations are set to limit the extensive use of indium for optoelectronic device applications and, in turn, alternative transparent conducting oxide (TCO) materials are required. In this report, we show that aluminum-doped zinc oxide (AZO) thin films grown by atomic layer deposition (ALD) are sufficiently conductive and transparent to outperform ITO as the cathode in inverted polymer solar cells. Reference polymer solar cells made with atomic-layer-deposited AZO cathodes, PCE10 as the polymer donor and PC71BM as the fullerene acceptor (model systems), reach power conversion efficiencies of ca. 10% (compared to ca. 9% with ITO-coated glass), without compromising other figures of merit. These ALD-grown AZO electrodes are promising for a wide range of optoelectronic device applications relying on TCOs.