Characterization of Ag-TiO 2 ( CORE-SHELL ) Thin Film Solar Cell

Silver particles were synthesized by using an aqueous-based reduction method. Silver thin film (core) was synthesized in form of finely silver films. The TIO coated glass was used as substrate for chemical bath deposition (CBD) at 120 C for 2 h. Shell material (TiO2 solution) was coated onto Ag thin film by spin coating technique. The grain size of the Ag particles, Ag thin film and Ag-TiO2 thin film were studied by scanning electron microscope (SEM). Optical properties of silver thin film were determined from transmittance spectrum with SHIMADZU UV-1800 spectrophotometer. Ag-TiO2 thin film was prepared by spin coating method. The electrical properties were investigated by leakage current versus voltage (I-V) measurements. The reverse bias characteristics and the forward bias characteristics of the Schottky barrier of the Ag-TiO2 thin film were also determined. Photovoltaic parameters: conversion efficiency (ŋcon) 4.83% and fill factor (FF) 0.27 are also determined.