Idda AhmedAyat, LailaDaoudi, MebarkaBenslimane, Hassane2019-05-272019-05-272018-12-10http://dspace.univ-eloued.dz/handle/123456789/1729International Symposium on Mechatronics and Renewable Energies El-Oued 10- 11 December 2018the influence of the absorber layer (i-layer) properties on the amorphous solar cells parameters has been an object of research since the 1980s. In this study, a numerical simulation was carried out to study the influence of the intrinsic layer by using a novel technique based on graded band gap for amorphous single junction solar cells. In this context, we use the software called AMPS-1D. The optimized properties of the different layers of a-Si:H solar cell, especially intrinsic layer, were suggested to obtain the maximum conversion efficiency. Indeed, the use of intrinsic multilayer can control the spectral overlap by employing band-gap grading which the potential initial conversion efficiency of single-junction solar cell reach to 11.52%.enHydrogenated amorphous silicon, Absorber layer, graded band gap, Solar cells.Other