Photovoltage and stability of an n-type silicon semiconductor coated with metal or metal-free phthalocyanine thin films in aqueous redox solutions

Journal Article · Thu Jun 11 00:00:00 EDT 1981 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j150612a014· OSTI ID:6216514

Nakato, Y; Shioji, M; Tsubomura, H

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), Vol. 85:12
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
PHOTOANODES
PERFORMANCE
PHOTOELECTROCHEMICAL CELLS
AQUEOUS SOLUTIONS
CATIONS
COPPER COMPOUNDS
ELECTRICAL PROPERTIES
ELECTRODES
FILMS
IRON
N-TYPE CONDUCTORS
PHTHALOCYANINES
SEMICONDUCTOR MATERIALS
SILICON
STABILITY
ANODES
CHARGED PARTICLES
DISPERSIONS
DYES
ELECTROCHEMICAL CELLS
ELEMENTS
EQUIPMENT
HETEROCYCLIC COMPOUNDS
IONS
MATERIALS
METALS
MIXTURES
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
SEMIMETALS
SOLAR EQUIPMENT
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
140505* - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)