Journal
ORGANIC ELECTRONICS
Volume 26, Issue -, Pages 61-65Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2015.07.021
Keywords
Thin-film photovoltaics; Light trapping; Textured film; Building integrated photovoltaics; Optical simulation
Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [NRF-2015R1A2A2A01006689]
- New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry Energy [20133030000130]
- EEWS Research Project of the office of the KAIST EEWS Initiative [EEWS-2014-N01140052]
- KAIST Institute for the NanoCentury
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We design a novel light-trapping structure that can be applied to building-integrated photovoltaic systems, which inherently receive incident light asymmetrically during the whole year. The structure is optimized with respect to the asymmetric angular range of the incident light by breaking the structural symmetry. We demonstrate the effectiveness of the designed light-trapping structure for various incident-angle ranges via thorough simulation studies and experimental results using organic photovoltaic (OPV) devices. As a result, we achieved an annual energy-production enhancement of 15% in case of OPVs installed on the vertical facade of a building in Daejeon, Korea (latitude = 36.5 degrees). (C) 2015 Elsevier B.V. All rights reserved.
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