Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 95, Issue 4, Pages 1238-1242Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2010.12.050
Keywords
Organic solar cell; SU-8; Passivation; UV; Polymer film
Funding
- Ministry of Knowledge Economy (MKE)
- Korea Institute of Industrial Technology Evaluation and Planning (ITEP)
- Korea government (MEST) [2010-0001882]
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This paper investigates passivation films for organic solar cells (OSCs) in terms of the ultraviolet (UV) rays that the SU-8 film employs. An SU-8 film was deposited on the back side of an OSC sample, and the performance of the OSC was measured in terms of the UV intensity variation. The UV intensity was 10 and 30 mW/cm(2) at 365 nm. When 30 mW/cm(2) of UV was irradiated for 5 min, the V-oc and FF of the OSC without SU-8 film significantly decreased to 70% and 74%, respectively, from the pristine condition: leading to an efficiency decrease of approximately 48%. However, the V, and FF of OSC with passivation film slightly decreased to 93% and 98%, respectively. (C) 2011 Elsevier B.V. All rights reserved.
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