Novel solid state solar cell made from n-cu2o using granular active carbon as upper - electrode

Abstract

Coir is a natural vegetable fibre obtained from the coconut tree. In this research, alkaline-bio scoured bristle coir fibres powders were subjected to alkaline activation method. Potassium Hydroxide (0.1M) was used to treat the carbon powder subjecting it to activation. The coir carbon powder was fed into a tube furnace with a constant heating rate of 20Co min-1 until the temperature reached different temperatures between 380 oC to 450 oC. At a selected temperature between 380Co to 450Co the samples were kept inside the tube furnace for 15 min in a nitrogen flow. Subsequently they were cooled up to room temperature. Then determine iodine number. Copper plate was fabricated by thin film of Cu2O .which is formed by well boil (5*10-3M) solution of copper sulphate and make in n-Cu2O solar cell. n- Cu2O band gap was about 2.2eV.Coir active carbon powder (GAC) act as an upper electrode of this specific photo electrode. The diffused reflectance spectra and the X-ray diffraction peak (XRD) and SEM the cell were measured to determine the effectiveness of the solid state thin film solar cell. A significant variation in photo current occurred by stability of GAC is clearly observed in the upper electrode with the thin film and conductive glass plate solar cell