The effect of a MoOx hole-extracting layer on the performance of organic photovoltaic cells based on small molecule planar heterojunctions
| Autor: | Ian Hancox, Tim Jones, Nicola Beaumont, Luke A. Rochford, K. V. Chauhan, Paul J. Sullivan, Ross A. Hatton |
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| Rok vydání: | 2010 |
| Předmět: |
Organic electronics
Organic solar cell Open-circuit voltage business.industry Nanotechnology General Chemistry Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Biomaterials Pentacene chemistry.chemical_compound chemistry law Solar cell Materials Chemistry Phthalocyanine Optoelectronics Quantum efficiency Electrical and Electronic Engineering business Layer (electronics) |
| Zdroj: | Organic Electronics. 11:2019-2025 |
| ISSN: | 1566-1199 |
| DOI: | 10.1016/j.orgel.2010.09.014 |
| Popis: | We report a significant increase in the open circuit voltage (V-oc) and power conversion efficiency in both chloroaluminium phthalocyanine (ClAlPc)/fullerene (C-60) and boron subphthalocyanine chloride (SubPc)/C-60 organic photovoltaic (OPV) cells with the insertion of a thin molybdenum oxide (MoOx) hole-extracting layer. This improvement was not seen with copper phthalocyanine (CuPc)/C-60, and the addition of the MoOx layer leads to reduced device performance for pentacene/C-60 cells. Cells containing the MoOx layer demonstrated significantly improved stability compared to the cells deposited on bare indium-tin oxide (ITO). External quantum efficiency (EQE) measurements taken before and after constant AM1.5G illumination for 60 min showed reduced current losses for all cells containing the MoOx layer, especially in spectral regions where the donor layer contributes. We attribute this improvement to the increased stability at the MoOx/donor interface. (C) 2010 Elsevier B. V. All rights reserved. |
| Databáze: | OpenAIRE |
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