A comparative study of the photoelectric properties for lithium oxide prepared by Green synthesis method

Abstract

Lithium oxide Li2O was synthesized by two green synthesis methods using two plants saffron and turmeric. Then the Li2O colloidal is deposite on p-type porous Si substrate p-PSi and n-type porous silicon substrate n-PSi to fabricate Al/Li2O/p-PSi/pSi/Al heterojunction and Al/Li2O/n-Psi/nSi/Al heterojunction. The morphological studies were measured by X-Ray Diffraction XRD getting an average crystallite size 34.7 nm for green synthesized saffron and 31.36 nm average crystallite size in case of green synthesized turmeric. Scanning Electron Microscopy SEM was about 80 nm size in case of saffron and about 55 nm. Fourier Transformation Infra-Red FT-IR was nearly the same in both cases. Optical measurement UV-visible occurred by calculating the transmittance and absorbance spectra and finally IV-in dark and IV under illumination were measured for the application of a heterojunction as a solar cell.