[We-P] 2D materials

[We-P-51] Verifying the influence of water molecules on gas adsorption in 2D materials using nonlinear optical methods

〇Kuang Yao Lo¹, Ting-Yu Yen¹, Yang-Hao Hung¹, Yann-Wen Lan², Chiu-Hsin Wu³, Kuan-Ming Hung⁴ (1. National Cheng Kung Univ. (Taiwan), 2. National Taiwan Normal Univ. (Taiwan), 3. National Chung Hsing Univer. (Taiwan), 4. National Kaohsiung Univ. of Science and Technology (Taiwan))

We provide non-destructive second harmonic generation methods and related theoretical calculation to study the influence of water molecules to the gas adsorbed on WS2. In terms of hyperpolarizability, water molecules clearly dominate the adsorption competition in 2D materials.