PROJECT TITLE :
UV–Visible Light-Trapping Structure of Loosely Packed Submicrometer Silica Sphere for Amorphous Silicon Solar Cells
We synthesized a loosely packed submicrometer silica-sphere (LPSS) monolayer at space temperature and used the LPSS monolayer because the frontside lightweight-trapping structure for n-i-p-sort amorphous Si (a-Si) solar cells (SCs) to improve photovoltaic characteristics of the cells. The frontside LPSS monolayer plays a role as a UV–visible light-weight scatter and a broadband antireflector; each can greatly improve the photoresponse of the underneath a-Si adsorbed layer. When the filling density of the LPSS layer is optimized to 65percent, the enhancement in the photocurrent and conversion potency of the a hundred and twenty $^circhboxC$ -fabricated SCs is as high as $sim$fifteen% and $sim$six.9%, respectively. Accordingly, such an LPSS lightweight-trapping structure boosts efficiency of a hundred and twenty $^circhboxC$- and a hundred and forty $^circhboxC$-fabricated cells to seven.three% and 8.5%, respectively. Since the LPSS structure contains a graded refractive index profile, it behaves sort of a nearly omnidirectional antireflector, enhancing solar potency at a very giant incident angle of illumination.
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