Semiconductor photophysics. 5. Charge carrier trapping in ultrasmall silver iodide particles and kinetics of formation of silver atom clusters

Journal Article · Thu Feb 01 00:00:00 EST 1990 · Langmuir; (USA)

DOI:https://doi.org/10.1021/la00092a032· OSTI ID:6613324

Micic, O I ^[1]; Meglic, M; Lawless, D; Sharma, D K; Serpone, N ^[2]

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1. Boris Kidric Institute of Nuclear Sciences, Belgrade (Yugoslavia)
2. Concordia Univ., Montreal, Quebec (Canada)

Reactions of reducing species from acetonitrile media with silver iodide particles ({approximately}25-{angstrom} diameter) have been investigated by pulse radiolysis techniques. Injection of electrons into these ultrasmall particles leads to transient bleaching of the adsorption of AgI at wavelengths close to the onset of absorption ({approximately}400 nm) with the concomitant reduction of AgI to metallic silver. The reduction of Ag{sup +} ions and formation of silver atoms and/or dimeric Ag{sub 2} molecules on three different size AgI particles ({approximately}100, 35, and {approximately}25 {angstrom}) have also been examined by picosecond laser spectroscopy.

• OSTI ID: 6613324
• Journal Information: Langmuir; (USA), Vol. 6:2; ISSN 0743-7463
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHARGE CARRIERS
TRAPPING
SEMICONDUCTOR MATERIALS
RADIOLYSIS
DATA ANALYSIS
ELECTRONS
EXPERIMENTAL DATA
KINETICS
MEASURING INSTRUMENTS
MEASURING METHODS
SILVER IODIDES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
ELEMENTARY PARTICLES
FERMIONS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IODIDES
IODINE COMPOUNDS
LEPTONS
MATERIALS
NUMERICAL DATA
RADIATION CHEMISTRY
RADIATION EFFECTS
SILVER COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360605* - Materials- Radiation Effects