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Design optimization of highly efficient spectrum-splitting and beam-concentrating diffractive optical element for lateral multijunction solar cells |
Wang Jin-Ze (王进泽)a b, Ye Jia-Sheng (叶佳声)c, Huang Qing-Li (黄庆礼)a b, Xu Xin (许信)a b, Li Dong-Mei (李冬梅)a b, Meng Qing-Bo (孟庆波)a b, Yang Guo-Zhen (杨国桢)d |
a Key Laboratory for Renewable Energy (CAS), Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
b Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
c Department of Physics, Capital Normal University; Beijing Key Laboratory for THz Spectroscopy and Imaging,Key Laboratory of THz Optoelectronics, Ministry of Education, Beijing 100048, China;
d Laboratory of Optical Physics, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract Two improved algorithms are proposed to extend a diffractive optical element (DOE) to work under the broad spectrum of sunlight. An optimum design has been found for the DOE, with a weighted average optical efficiency of about 6.8% better than that of the previous design. The optimization of designing high optical efficiency DOEs will pave the way for future designs of high-efficiency, low-cost lateral multijunction solar cells based on such a DOE.
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Received: 12 November 2013
Revised: 17 December 2013
Accepted manuscript online:
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PACS:
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42.15.Eq
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(Optical system design)
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42.25.Fx
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(Diffraction and scattering)
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42.79.Ek
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(Solar collectors and concentrators)
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Fund: Project supported by the National Natural Science Foundation of China (Grants Nos. 91233202, 21173260, and 51072221) and the National Basic Research Program of China (Grant No. 2012CB932903. |
Corresponding Authors:
Meng Qing-Bo, Yang Guo-Zhen
E-mail: qbmeng@iphy.ac.cn;yanggz@iphy.ac.cn
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About author: 42.15.Eq; 42.25.Fx; 42.79.Ek |
Cite this article:
Wang Jin-Ze (王进泽), Ye Jia-Sheng (叶佳声), Huang Qing-Li (黄庆礼), Xu Xin (许信), Li Dong-Mei (李冬梅), Meng Qing-Bo (孟庆波), Yang Guo-Zhen (杨国桢) Design optimization of highly efficient spectrum-splitting and beam-concentrating diffractive optical element for lateral multijunction solar cells 2014 Chin. Phys. B 23 044211
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