Photoelectrochemistry in particulate systems. 7. Electron-transfer reactions of indium sulfide semiconductor colloids
Journal Article
·
· J. Phys. Chem.; (United States)
Small semiconductor colloids of In/sub 2/S/sub 3/ have been prepared in aqueous and nonaqueous media and their absorption properties characterized. A transient photobleaching and formation of S/sup .-/ and S/sub 2/H/sub 2//sup .-/ radicals have been observed upon laser pulse (355 nm) excitation of these colloids. With the aid of transient absorption spectra, the anodic corrosion process in these semiconductor colloids has been elucidated by using laser flash photolysis and pulse radiolysis techniques. With the use of a zwitterionic viologen compound, the interfacial charge-transfer process at the semiconductor surface has been studied. The quantum yield for the reduction of zwitterionic viologen was 0.07, which is similar to the value obtained with other metal chalcogenide semiconductor colloids. The microenvironment of the stabilizer (Nafion) influenced the charge-transfer process between the semiconductor and the redox decay.
- Research Organization:
- Univ. of Notre Dame, Indiana (USA)
- OSTI ID:
- 7247013
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:8; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:5814178
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400400 -- Electrochemistry
400500* -- Photochemistry
400600 -- Radiation Chemistry
ABSORPTION SPECTROSCOPY
AZINES
BIPYRIDINES
CHALCOGENIDES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COLLOIDS
DATA
DECOMPOSITION
DISPERSIONS
ELECTROCHEMICAL CELLS
ELECTRON TRANSFER
EQUIPMENT
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INDIUM COMPOUNDS
INDIUM SULFIDES
INFORMATION
LASERS
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOELECTROCHEMICAL CELLS
PHOTOLYSIS
PYRIDINES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
SEMICONDUCTOR MATERIALS
SOLAR EQUIPMENT
SPECTROSCOPY
SULFIDES
SULFUR COMPOUNDS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400400 -- Electrochemistry
400500* -- Photochemistry
400600 -- Radiation Chemistry
ABSORPTION SPECTROSCOPY
AZINES
BIPYRIDINES
CHALCOGENIDES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COLLOIDS
DATA
DECOMPOSITION
DISPERSIONS
ELECTROCHEMICAL CELLS
ELECTRON TRANSFER
EQUIPMENT
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INDIUM COMPOUNDS
INDIUM SULFIDES
INFORMATION
LASERS
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOELECTROCHEMICAL CELLS
PHOTOLYSIS
PYRIDINES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
SEMICONDUCTOR MATERIALS
SOLAR EQUIPMENT
SPECTROSCOPY
SULFIDES
SULFUR COMPOUNDS