Picosecond measurements of geminate charge pair recombination in photoionized liquids
Open Access
- 1 January 1985
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 63 (1) , 228-231
- https://doi.org/10.1139/v85-037
Abstract
The recombination dynamics of geminate cation–electron pairs in liquid hexane is studied by combining picosecond photoionization and infrared-stimulated charge dissociation measurements. The observed yield of free charge is determined by the product of the charge pair survival probability and the probability for infrared-stimulated charge dissociation. Experimental results are compared with transient solutions of the Smoluchowski equation governing diffusive recombination in a Coulomb well. Reasonable agreement with experiment can be reached by allowing for a radial distribution of initial pair separations. However, the stimulated dissociation yield exhibits a functional dependence on pair separation which complicates the analysis. A simple model of geminate charge pair dissociation by infrared stimulation is presented and its implications for these experiments are discussed.Keywords
This publication has 0 references indexed in Scilit: