Nanotextured crystalline silicon solar cells
Journal
Physica Status Solidi (A) Applications and Materials Science
Journal Volume
208
Journal Issue
12
Pages
2926-2933
Date Issued
2011
Author(s)
Abstract
Abstract Nano‐scale textures are formed on crystalline silicon surfaces by using a two‐step electroless wet‐chemical method consisting of a treatment in an activated Na 2 S 2 O 8 (K 2 S 2 O 8 ) solution for localized oxidation/surface reaction and silver nanoparticles deposition. The oxidation/reaction products are etched in an aqueous solution of HF and H 2 O 2 assisted by the presence of silver nanoparticles. The reflectance of the nanotextured silicon wafer surfaces less than 5% in the spectral interval 300–900 nm is observed. It was found that the surface texture can withstand without significantly changing the high‐temperature solar cell processing. A weighted reflectance of 9.5% and 16.43% efficiency are obtained on nanotextured mc‐Si solar cells with an active area of 146 mm 2 prepared using the standard screen‐printing technique.
SDGs
Type
journal article