▎ 摘　　要

NOVELTY - Formation of MXene (two dimensional material) layer on a metal layer involves forming the metal layer on a substrate, and forming the MXene layer containing a metal nitride and/or carbide on the metal layer by supplying a gas containing carbon and/or nitrogen on the metal layer. USE - Formation of MXene layer on metal layer. ADVANTAGE - The method enables to form MXene on metal layer in a simple manner. DETAILED DESCRIPTION - Formation of MXene (two dimensional material) layer on a metal layer involves forming the metal layer on a substrate, and forming the MXene layer containing a metal nitride and/or carbide of formula: Mn+1Xn, where M is a metal, X is carbon and/or nitrogen and n is a natural number on the metal layer by supplying a gas containing carbon and/or nitrogen on the metal layer.