▎ 摘　　要

NOVELTY - Formation of nanopores of two-dimensional structure involves providing the two-dimensional material structure, and forming nanopores in a thickness direction with respect to the structure. USE - Formation of nanopores of two-dimensional structure such as single structure, double junction structure, and multi-junction structure (all claimed). ADVANTAGE - The surface area for excellent light absorption is increased by forming certain nanopores in a two-dimensional material using a nanopatterning technique. The shape of an indirect bandgap is changed into a shape of a direct bandgap, so that the exciton survival time is increased. The fast recombination rate is controlled due to the large exciton binding energy of the 2D material.