Performance enhancement of thin-film silicon solar cells with nanoporous surface structure and TiO2 passivation layer based on optimal light trapping and surface recombination reducing
Journal
2014 IEEE International Nanoelectronics Conference, INEC 2014
Date Issued
2016
Author(s)
Abstract
Photovoltaic performance of a thin-film silicon solar cell based on light-trapping enhanced and surface-recombination reduced using an optimization of metal-assisted chemical etching (MACE) and TiO2 passivation was demonstrated. The silver nanoparticles were used as etched mask in MACE process to obtain a nanoporous silicon surface layer. The optical reflectance, dark and photovoltaic current-voltage, external quantum efficiency as a function of the MACE times are measured and compared. Significant improving efficiency of 38% was obtained for the cell with 10-second MACE time and 15-nm-thick TiO2 passivation. © 2014 IEEE.
Subjects
light trapping; metal-assisted chemical etching (MACE); nanoporous; passivation; surface recombination; thin-film silicon solar cell
SDGs
Other Subjects
Efficiency; Etching; Nanoelectronics; Passivation; Silicon; Silver; Solar cells; Solar power generation; Thin film solar cells; Thin films; Titanium dioxide; Light-trapping; Metal-assisted chemical etching; Nano-porous; Surface recombinations; Thin-film silicon solar cells; Silicon solar cells
Type
conference paper