Radiation chemistry of low-temperature aqueous glasses. Part 4.—Distinguishable electron traps in neutral and alkaline glasses

Abstract

Extensive studies of the photobleaching kinetics of e^–_t in aqueous alkaline glasses show (i) that electrons are trapped in potential wells of differing depths from which they can be selectively photo-bleached, and (ii) that trapping occurs within the Coulombic field of the positive charge produced concurrently with the electron. Examination of other aqueous glasses indicates that the trapped electron is located in a “water-walled” cavity.