Abstract
The present research concerns the manufacture of porous silicon (PSi) by means of electrochemical etching method at (10 mA.cm−2)current density and approximately 10 minute etching time. The porous silicone layer was investigated by XRD, AFM and FTIR, and then Li2O nanoparticles (NPs) were prepared by a simple chemical method. And freshly embedding three drops of (Li2O) solution using the drop casting technique on the 40°C porous silicon(n-Psi) method to produce the heterojunction Al / Li2O / PSi / Al. The results of current-voltage ( I-V) test showed that the solar cell’s maximum power conversion efficiency ( PCE) was 2.49% and thus the fill factor was 66.12%. A diffusion of Li2O NPs on PSi solar cell characteristics assures an improvement on their properties.
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