A crystalline silicon photovoltaic module, comprising a first backsheet, a first encapsulant layer, a plurality of crystalline silicon solar cells, a second encapsulant layer and a transparent substrate sequentially stacked, characterized in that the crystalline silicon photovoltaic module further comprising:
- an encapsulant material with porous structure disposed between the backsheet and the transparent substrate, so as to collect light passing through a gap between the crystalline silicon solar cells and to increase power conversion efficiency of the crystalline silicon photovoltaic module.