Abstract
In this study, the effect of incorporating of gold nanoparticles (AuNPs) on the performance of p-n+ porous silicon (p-n+ PSi) solar cell was examined. Surface morphology of p-n+ PSi was modified by incorporating AuNPs into n+ PSi layer through a simple and quick immersing process in the solution of HAuCl4 with concentrations of 10−2 M and 5 × 10-3 M diluted in 2.9 M of HF to synthesize p-n+ PSi/AuNPs hetero structures. The characteristics of p-n+ PSi and AuNPs were investigated using field emission scanning electron microscope (FE-SEM), atomic force microscope (AFM), X-ray diffraction (XRD) and energy dispersive x- ray spectroscope (EDX). Photovoltaic parameters of hetero structure solar cells are strongly depended on the shape and the size of hot spot regions and on the morphology of modified p-n+ PSi. Significant improvement was noticed in Photovoltaic parameters of bare p-n+ PSi after incorporating AuNPs due to the existing of high density of smaller gap sizes.
Published Version
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