Snu Rdb Foundation

Hyeong Suk Yoo

Young Su Kim

Seung Ki Joo

Nam Kyu Song

Disclosed herein is a method of forming a light-absorbing layer of a polycrystalline silicon solar cell, including: forming a polycrystalline silicon layer on a back electrode; forming an intrinsic amorphous silicon layer on the polycrystalline silicon layer; and heat-treating the transparent insulating substrate to vertically crystallize the intrinsic amorphous silicon layer using the polycrystalline silicon layer as a seed for crystallization through a metal induced vertical crystallization (MIVC) process to form the intrinsic amorphous silicon layer into a light-absorbing layer made of polycrystalline silicon, and is a method of fabricating a high-efficiency polycrystalline silicon solar cell using the light-absorbing layer.

Polycrystalline silicon solar cell having high efficiency and method for fabricating the same

Disclosed herein is a polycrystalline silicon solar cell, including: a back electrode formed on a transparent insulating substrate; an N-type polycrystalline silicon layer in which amorphous silicon is crystallized through MIC process, and in which electrons are accumulated; a light-absorbing layer which is formed by vertically crystallizing an intrinsic amorphous silicon layer using the polycrystalline silicon layer as a seed for crystallization through MIVC process, in which pairs of electrons and holes are generated in response to incident light, and which has a vertical column grain structure in which grains are arranged in the direction in which electrons and holes move; a P-type polycrystalline silicon layer which has the vertical column grain structure, and in which holes are accumulated; a transparent electrode layer; front electrodes; and an antireflection coating film, and is a method of fabricating the same.

Growing community of inventors

Gyeonggi-do, South Korea

Hyeong Suk Yoo