Browsing by Author "Ho, Kuan-Ying"

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Back-Contacted Thin-Film GaAs Solar Cells
(2016-01-01)
Hong, Chung-Yu
;
Lin, Yu-Chen
;
Ho, Kuan-Ying
;
Tsai, Jia-Ling
;
Chien, Zhan-Tien
In this work, we present a thin-film GaAs solar cell employing via contacts for forming a back-contacted solar cell to eliminate light blocking effects and enhance photon recycling at the same time. The fabrication procedure and the characterization of the fabricated devices are discussed in this paper. From our measurement, a conversion efficiency of 6.5%, open circuit voltage of 0.95 V, and a current density of 8.6mA/cm(2) under one-sun illumination were obtained in a 5x5 mm cell.
Optimization of All-Back-Contact GaAs Solar Cells
(2015)
Ho, Kuan-Ying
;
Hong, Chung-Yu
;
Yu, Peichen
;
Wu, Yuh-Renn
;
光電工程學系
The optimized condition of all-back-contact solar cells is studied to eliminate the problem of light blocking by the front contacts in conventional solar cells. The influences of layer thickness and pitch distance are studied. The optimized structure is obtained with a 2 mu m thick base layer and a 631 mu m contact pitch, and the efficiency can reach to 26.15%.