Open AccessIdeality factor of Al/nanosilver/PS/Si/Al sandwich structure
Author(s) -
Hussein M. Ali
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1058/1/012075
Subject(s) - materials science , etching (microfabrication) , absorbance , nanoparticle , band gap , transmittance , laser , analytical chemistry (journal) , laser ablation , nanotechnology , optoelectronics , optics , chemistry , physics , layer (electronics) , chromatography
In this work, n-type (p-Si) porous Si nanostructures were fabricated by photochemical etching of n-type (p-Si) chips. The etching time of 20 min and the density of current of 20 mA / cm 2 were examined to discuss their impact on nanopore array formation. Crystal size was assessed by XRD. AFM confirmed the non-metric size of porous Si showing a rough Si surface increased with etching time and increased the depth and width (diameter) of the surface etching. Colloidal silver nanoparticles were also prepared by laser ablation in liquid (LAL) with Nd: YAG laser pulses and an Ag target submerged in ethanol using laser fluorescence (1.32 J / cm 2 ). The effect of laser flux on the physical properties obtained from this study of Ag nanoparticles has been studied. The energy band gap prepared for the Ag nanoparticles was determined from the optical properties and found between (1.85 eV). Optical constants of deposit film were obtained using transmittance and absorbance spectra. Electrical properties of prepared Al/Ag/PS/p-Si/Al sandwich Solar cells are represented by I-V characteristics under dark conditions.