Photoelectron spectroscopy is a surface-sensitive method of measuring the chemical composition of materials. We have been utilizing this feature to study nanocarbon materials and two-dimensional materials, including graphene and hexagonal boron nitride (h-BN). In this paper, I will introduce our research results using photoelectron spectroscopy, which has revealed the band diagram of graphene/h-BN stacked structures and the gas barrier property of graphene,.
https://ror.org/01dq60k83 
