▎ 摘　　要

NOVELTY - The battery has a main body provided with a back electrode, a gallium arsenide wafer, a window layer, a heavily doped gallium arsenide cap layer and a front electrode. The heavily-doped gallium arsenide cap layer is provided with a hollow-out area corresponding to position of a positive electrode grid line. A graphene layer is provided with another hollow-out area. The window layer is arranged on the graphene layer. The graphene layer is provided with an anti-reflecting layer i.e. transparent film that is placed away from a surface of the window layer. USE - Graphene/gallium arsenide solar battery. ADVANTAGE - The battery adopts the graphene as transparent conductive material so as to improve power conversion efficiency higher than a Schottky junction solar cell, and is inexpensive, simple to prepare and convenient to apply in industrial application. DETAILED DESCRIPTION - The gallium arsenide epitaxial wafer is single-junction gallium arsenide, double-junction gallium indium phosphor/gallium arsenide and three-junction gallium indium phosphor/gallium arsenide/germanium. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a graphene/gallium arsenide solar battery.