All-solid-state heterojunction solar cell

The present invention relates to a highly efficient solar cell having a novel structure and superior stability, and which can be mass-produced from an inexpensive material for enabling the easy commercial availability thereof. More particularly, the solar cell of the present invention comprises: a porous inorganic electron-transporting layer containing metal oxide particles; a light absorber containing inorganic semiconductors; and an organic hole-transporting layer containing an organic photovoltaic material.