Using high haze (>90%) light-trapping film to enhance the efficiency of a-Si:H solar cells
作者： Wei-Ping Chu , Jian-Shian Lin , Tien-Chai Lin , Yu-Sheng Tsai , Chen-Wei Kuo
DOI: 10.1016/J.OPTCOM.2012.02.088
关键词:
摘要: Abstract The high haze light-trapping (LT) film offers enhanced scattering of light and is applied to a-Si:H solar cells. UV glue was spin coated on glass, then the LT pattern imprinted. Finally, a lamp used cure glass. effectively increased Haze ratio glass decreased reflectance Therefore, photon path length obtain maximum absorption by absorber layer. High able enhance short circuit current density efficiency device, as partial composite generates broader light, thereby causing shorter wave be absorbed P layer so that decreases. In case lab-made thin cells with v-shaped films, superior optoelectronic performances have been found (V oc = 0.74 V, J sc = 15.62 mA/cm 2 , F.F. = 70%, η = 8.09%). We observed ~ 35% enhancement short-circuit ~ 31% conversion efficiency.
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