Photovoltage and stability of an n-type silicon semiconductor coated with metal or metal-free phthalocyanine thin films in aqueous redox solutions
Journal Article
·
· J. Phys. Chem.; (United States)
An n-type silicon (n-Si) semiconductor coated with an evaporated thin film of metal phthalocyanine (MPc) or metal-free phthalocyanine (H/sub 2/Pc) worked as a fairly stable photoanode in aqueous redox solutions. The photovoltage observed for a photocell, (n-Si/CuPc/Fe/sup 3 +//Fe/sup 2 +/ aqueous solution (pH 4.2) /Pt), was 0.50 V, only slightly less than that for a p-n junction Si photocell (approx. 0.6 V). The action spectrum was similar to that of a bare n-Si electrode, except for a depression caused by photoabsorption by the CuPc film in the red region. The above wet photocell has current-voltage characteristics better than those for a solid photocell, (n-Si/CuPc/Pd).
- Research Organization:
- Osaka Univ., Toyonaka, Japan
- OSTI ID:
- 6216514
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 85:12; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
ANODES
AQUEOUS SOLUTIONS
CATIONS
CHARGED PARTICLES
COPPER COMPOUNDS
DISPERSIONS
DYES
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
EQUIPMENT
FILMS
HETEROCYCLIC COMPOUNDS
IONS
IRON
MATERIALS
METALS
MIXTURES
N-TYPE CONDUCTORS
ORGANIC COMPOUNDS
PERFORMANCE
PHOTOANODES
PHOTOELECTROCHEMICAL CELLS
PHTHALOCYANINES
PHYSICAL PROPERTIES
SEMICONDUCTOR MATERIALS
SEMIMETALS
SILICON
SOLAR EQUIPMENT
SOLUTIONS
STABILITY
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
ANODES
AQUEOUS SOLUTIONS
CATIONS
CHARGED PARTICLES
COPPER COMPOUNDS
DISPERSIONS
DYES
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
EQUIPMENT
FILMS
HETEROCYCLIC COMPOUNDS
IONS
IRON
MATERIALS
METALS
MIXTURES
N-TYPE CONDUCTORS
ORGANIC COMPOUNDS
PERFORMANCE
PHOTOANODES
PHOTOELECTROCHEMICAL CELLS
PHTHALOCYANINES
PHYSICAL PROPERTIES
SEMICONDUCTOR MATERIALS
SEMIMETALS
SILICON
SOLAR EQUIPMENT
SOLUTIONS
STABILITY
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS