Gas Adsorption Mechanism on 2D Materials: The Hyperpolarizability Evolution Analyzed by Nonlinear Optics

• Published in: Advanced functional materials Vol. 34; no. 42
• Main Authors: Yen, Ting‐Yu, Hung, Yang‐Hao, Lee, Yu‐Zen, Ho, Yen‐Teng, Lan, Yann‐Wen, Wu, Chiu‐Hsien, Hung, Kuan‐Ming, Lo, Kuang Yao
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc 01.10.2024
• Subjects: 2D material gas sensor; Adsorption; Ammonia; Boltzmann distribution; competitive adsorption; Competitive materials; Density functional theory; DFT calculation; Electric dipoles; Electric fields; Gas sensors; Gases; hyperpolarizability evolution; Materials selection; Nonlinear optics; Second harmonic generation; Two dimensional analysis; Two dimensional materials; Water chemistry; Water vapor

While understanding the competitive adsorption behavior of gas sensor is important, it is yet to be unraveled. Especially for the influence of water molecules to the gas adsorbed on 2D materials. This study explores the potential of layered 2D materials as a candidate material for gas sensing, emplo...