Morphology-dependent stimulated Raman scattering imaging. II. Experimental studies of solvent structure in the diffuse electric double layer

Zhang, Jian-Xiang; Moortgat, Philip A.; Aker, Pamela M.
November 1996
Journal of Chemical Physics;11/1/1996, Vol. 105 Issue 17, p7276
Academic Journal
Experimental confirmation that morphology-dependent stimulated Raman scattering can be used as an optical imaging technique is given. The water structure variations present at a charged water/air interface have been mapped. The measured structure variations track precisely that given by the Gouy–Chapman theory. We present, to our knowledge, the first experimental investigations of water solvent response in the diffuse part of the electric double layer. Imaging experiments on droplets charged to both positive and negative values have enabled us to determine the neutral water/air interface potential. © 1996 American Institute of Physics.


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