2 papers
physics.chem-ph2019
Intrinsic pH of water/vapor interface revealed by ion-induced water alignment
Kuo-Yang Chiang, Laetitia Dalstein, Yu-Chieh Wen
Protons at the water/vapor interface are relevant for atmospheric and environmental processes, yet to characterize their surface affinity on the quantitative level is still challen…
physics.chem-ph2019
Direct Quantification of Water Surface Charge by Phase-Sensitive Second Harmonic Spectroscopy
Laetitia Dalstein, Kuo-Yang Chiang, Yu-Chieh Wen
We develop and verify a phase-sensitive second harmonic generation spectroscopic scheme that allows for direct determination of the absolute surface charge density and surface pote…