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High-efficiency concentrated optical module


  • Lee, Chung-Jui
  • Lin, Jen-Fin


A high-efficiency optical module that comprises a parabolic reflector, a parabolic second optical element (SOE), and a Fresnel/aspheric concentrating lens is proposed. It is fabricated by high-precision machine tools based on an optimum design obtained using ray-tracing software simulations. The actual profiles of the reflector and SOE before coating the thin film are compared to the designed profiles to investigate the dimension errors and their influence on optical performance. The total flux, the optical efficiency, and the minimum, maximum, and mean irradiances are evaluated for various ray sources using ray-tracing simulations of the ASTM G173-03 spectrum. The optical module achieves good optical performance and its light irradiance distribution on the chip surface is uniform. The peak value of the irradiance spectrum is over three times that obtained without using the collection module. The concentrating lens thus improves the optical efficiency of the module and irradiance uniformity. The optical efficiency of the optical module with a concentrating lens is as high as 91% and the total flux exceeds 3 W. This efficiency is higher than those reported in the literature.

Suggested Citation

  • Lee, Chung-Jui & Lin, Jen-Fin, 2012. "High-efficiency concentrated optical module," Energy, Elsevier, vol. 44(1), pages 593-603.
  • Handle: RePEc:eee:energy:v:44:y:2012:i:1:p:593-603
    DOI: 10.1016/

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    References listed on IDEAS

    1. Salas, V. & Olias, E., 2009. "Overview of the photovoltaic technology status and perspective in Spain," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(5), pages 1049-1057, June.
    2. Dadouche, F. & Béthoux, O. & Kleider, J.-P., 2011. "New silicon thin-film technology associated with original DC–DC converter: An economic alternative way to improve photovoltaic systems efficiencies," Energy, Elsevier, vol. 36(3), pages 1749-1757.
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    1. Guiqiang, Li & Gang, Pei & Yuehong, Su & Jie, Ji & Riffat, Saffa B., 2013. "Experiment and simulation study on the flux distribution of lens-walled compound parabolic concentrator compared with mirror compound parabolic concentrator," Energy, Elsevier, vol. 58(C), pages 398-403.
    2. Xu, Jintao & Chen, Fei & Xia, Entong & Gao, Chong & Deng, Chenggang, 2020. "An optimization design method and optical performance analysis on multi-sectioned compound parabolic concentrator with cylindrical absorber," Energy, Elsevier, vol. 197(C).
    3. García-Domingo, B. & Aguilera, J. & de la Casa, J. & Fuentes, M., 2014. "Modelling the influence of atmospheric conditions on the outdoor real performance of a CPV (Concentrated Photovoltaic) module," Energy, Elsevier, vol. 70(C), pages 239-250.
    4. Renzi, Massimiliano & Cioccolanti, Luca & Barazza, Giorgio & Egidi, Lorenzo & Comodi, Gabriele, 2017. "Design and experimental test of refractive secondary optics on the electrical performance of a 3-junction cell used in CPV systems," Applied Energy, Elsevier, vol. 185(P1), pages 233-243.
    5. Li, Guiqiang & Xuan, Qingdong & Pei, Gang & Su, Yuehong & Ji, Jie, 2018. "Effect of non-uniform illumination and temperature distribution on concentrating solar cell - A review," Energy, Elsevier, vol. 144(C), pages 1119-1136.
    6. Renzi, M. & Egidi, L. & Comodi, G., 2015. "Performance analysis of two 3.5kWp CPV systems under real operating conditions," Applied Energy, Elsevier, vol. 160(C), pages 687-696.

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