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International Journal of Photoenergy
Volume 2013, Article ID 579453, 6 pages
Research Article

Reuse of the Reflective Light and the Recycle Heat Energy in Concentrated Photovoltaic System

1Department of Electronic Engineering and Green Technology Research Center, Chang-Gung University, No. 259, Winhwa 1st Road, Gueisan, Taoyuan County, Township 333, Taiwan
2Department of Computer & Communication, Army Accident, No. 750, Londong Road, Taoyuan County, Jungli City 320, Taiwan
3Department of Physics, Central Florida University, 4000 Central Florida Blvd/Building 121 PS 430 Orlando, FL 32816-2385, USA

Received 23 December 2012; Accepted 11 March 2013

Academic Editor: Man Shing Wong

Copyright © 2013 Hsin-Chien Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A complex solar unit with microcrystalline silicon solar cells placed around the centered GaAs triple junction solar cell has been proposed and carried out. With the same illumination area and intensity, the total resultant power shows that the excess microcrystalline silicon solar cells increase the total output power by 13.2% by absorbing the reflective light from the surface of optical collimators. Furthermore, reusing the residual heat energy generated from the above-mentioned mechanism helps to increase the output power by around 14.1%. This mechanism provides a simple method to enhance the utility rate of concentrated photovoltaic (CPV) system. Such concept can be further applied to the aerospace industry and the development of more efficient CPV solar energy applications.