Mechanism of formation of visible-absorbing excess electrons in crystalline ice near 273 K

Journal Article · Thu May 15 04:00:00 EDT 1980 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100447a036· OSTI ID:5257264

Gillis, H A; Teather, G G; Ross, C K

In pulse radiolysis experiments a strong dependence of yield of e/sub vis//sup -/ in crystalline D/sub 2/O at temperatures near 273 K on dose per pulse has been found; thus at 244 K the initial yield increased by a factor of 9 in going from 5.3 to 0.17 krd per 40-ns pulse. This dependence is interpreted in terms of competition kinetics; the precursor of e/sub vis//sup -/ can either react with another irradiation product or can drop into a vacancy present at equilibrium concentration to form e/sub vis//sup -/. The decay kinetics of e/sub ir//sup -/ were investigated between 95 and 166 K to see if this species could be the precursor of e/sub vis//sup -/, but no definite conclusion could be reached; within this temperature range e/sub ir//sup -/ appears to react with another radiation product present at a higher concentration but at temperatures above 166 K the decay is too fast for us to follow.

• Research Organization: National Research Council of Canada, Ottawa, Ontario
• OSTI ID: 5257264
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 84:10; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DATA FORMS
DECOMPOSITION
ELECTRONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
HEAVY WATER
HYDROGEN COMPOUNDS
ICE
INFORMATION
INFRARED SPECTRA
IRRADIATION
ISOLATED VALUES
KINETICS
LEPTONS
NUMERICAL DATA
OXYGEN COMPOUNDS
PULSED IRRADIATION
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
REACTION KINETICS
SPECTRA
VISIBLE SPECTRA
WATER