Surface charge pattern: impact on vibrational spectroscopy and physics of charged interfaces
Chemical Physics
2025-04-07 v1
Abstract
Surface specific vibrational spectroscopies revolutionized the study of charged interfaces, by sensitively probing water's response in the electric double layer (EDL) and correlating it with surface charge via models like Gouy Chapmann Stern. The assumed one to one relationship between water's spectroscopic response and surface charge has been widely accepted without question. We hereby propose a theoretical experiment to evaluate this assumption. Interestingly, our findings reveal a non one to one relationship between surface charge and spectroscopic response, exhibiting a fascinating dependence on surface topology.
Cite
@article{arxiv.2504.02954,
title = {Surface charge pattern: impact on vibrational spectroscopy and physics of charged interfaces},
author = {Wanlin Chen and Marie-Pierre Gaigeot and Simone Pezzotti},
journal= {arXiv preprint arXiv:2504.02954},
year = {2025}
}