Journal
APPLIED NANOSCIENCE
Volume 8, Issue 3, Pages 339-346Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13204-018-0713-0
Keywords
Organic solar cells; Pyramid texture; Solar cell; Light trapping; FDTD
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Funding
- Research Grants Council of Hong Kong, China [GRF 152109/16E PolyU B-Q52T]
- Hong Kong Polytechnic University [G-YBFR, G-UA7N]
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The partial decoupling of electronic and optical properties of organic solar cells allows for realizing solar cells with increased short circuit current and energy conversion efficiency. The proposed device consists of an organic solar cell conformally prepared on the surface of an array of single and double textured pyramids. The device geometry allows for increasing the optical thickness of the organic solar cell, while the electrical thickness is equal to the nominal thickness of the solar cell. By increasing the optical thickness of the solar cell, the short circuit current is distinctly increased. The quantum efficiency and short circuit current are determined using finite-difference time-domain simulations of the 3D solar cell structure. The influence of different solar cell designs on the quantum efficiency and short circuit current is discussed and optimal device dimensions are proposed.
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