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Organic photovoltaics with high stability sustained for 100 days without encapsulation fabricated using atomic layer deposition |
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| Authors: | Sun‐Young Park Hyun Ook Seo Kwang‐Dae Kim Jung Eun Lee Jung‐Dae Kwon Young Dok Kim Dong Chan Lim |
| Institution: | 1. Photocatalytic Synthesis Group, MESA+ Institute for Nanotechnology, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands;2. Department of Chemistry, Sungkyunkwan University, Suwon 440‐746, South Korea;3. Materials Processing Division, Korea Institute of Materials Science, Changwon 641‐010, South Korea |
| Abstract: | ZnO thin films with a rippled surface structure were used as electron‐collecting layers of inverted organic photovoltaics (OPVs). Using additional ultrathin layers of ZnO and TiO2 fabricated using atomic layer deposition (ALD), not only the power‐conversion efficiency of the OPVs could be increased (up to 3.5%), but also the photovoltaic performance became nearly constant within 100 days without any additional encapsulations of the solar cells under ambient conditions.  |
| Keywords: | organic photovoltaics atomic layer deposition TiO2 ZnO |