Analysis of the current-voltage characteristics of photoelectrolysis cells

Journal Article · Thu Oct 01 04:00:00 EDT 1981 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2127201· OSTI ID:5489278

Ahlgren, W L

A theoretical analysis of the current-voltage characteristics of photoelectrolysis cells is presented. The results are used to analyze experimental data for cells using n-type titanium or tungsten oxide semiconductor electrodes in acid electrolyte with platinum counterelectrode. From the I-V characteristics the quantum yield, optimum cell voltage, and maximum electrode efficiency can be derived, as well as the kinetic parameters of the semiconductor electrode (valence and conduction band transfer coefficients and exchange current densities). The theory highlights certain parameters, such as minority carrier exchange current density and diffusion length, which have an important effect on electrode efficiency. 11 refs.

• Research Organization: Univ of South Calif, Los Angeles, USA
• OSTI ID: 5489278
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 128:10; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
25 ENERGY STORAGE
250902 -- Energy Storage-- Batteries-- Performance & Testing
CHALCOGENIDES
CURRENT DENSITY
DIFFUSION LENGTH
DIMENSIONS
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTIC CELLS
EQUIPMENT
LENGTH
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTROCHEMICAL CELLS
PHOTOELECTROLYTIC CELLS
PHYSICAL PROPERTIES
SOLAR EQUIPMENT
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES