Publication

Abstract : Fibrous nanostructures are proposed for the application of solar cell. Irradiation of silicon surface with a few hundred femtosecond laser pulses of fluence 13 kJ/m2 at 13 MHz pulse frequency in air atmosphere results in the formation of fibrous nanostructure layer on the treated surface that leads to a significant decrease in the reflection of visible radiation. For the visible wavelength, the decreased reflection is a result of the nature of the nanostructure. The Raman peak shift in the irradiated surface confirms that the surface is changed to amorphous silicon due to fibrous nanostructure formation.