Title :
Enhance current density and light trapping effect in a-Si thin film solar cells by flexible textured PDMS film
Author :
Han, H.V. ; Chen, Hung Chi ; Tsai, Y.L. ; Lin, C.C. ; Kuo, H.C. ; Yu, Paul
Author_Institution :
Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The light trapping effect of a textured polydimethylsiloxane (PDMS) film on the suppression of surface reflection in a-Si:H solar cell is investigated. The angular dependence of scattered light from this PDMS film was measured and a symmetric scattering intensity peak was found at +/- 20°. The enhancement of power conversion efficiency in the a-Si:H solar cell with textured PDMS film can reach 16.37% compared to the a-Si:H solar cells without textured PDMS film. This improvement is mainly attributed to the enhanced efficiencies of light trapping and scattering. Such a design concept and fabrication process can be widely adapted to a variety of thin film solar cells.
Keywords :
amorphous semiconductors; current density; electromagnetic wave reflection; electromagnetic wave scattering; elemental semiconductors; hydrogen; semiconductor thin films; solar cells; Si:H; a-Si thin film solar cells; current density enhancement; fabrication process; flexible textured PDMS film; light scattering; light trapping effect; polydimethylsiloxane film; power conversion efficiency; scattered light angular dependence; surface reflection suppression; Conferences; Nanoelectronics;
Conference_Titel :
Nanoelectronics Conference (INEC), 2013 IEEE 5th International
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-4840-9
Electronic_ISBN :
2159-3523
DOI :
10.1109/INEC.2013.6465981
