Cyclic Voltammetry of Semiconductor Photoelectrodes III: A Comparison of Experiment and Theory for n-Si and p-Si Electrodes

Autor:	Patrick G. Santangelo, D. Marya Lieberman, Nathan S. Lewis
Rok vydání:	1998
Předmět:	business.industry Chemistry Analytical chemistry Capacitance Surfaces Coatings and Films Semiconductor Metallic electrode Electrode Materials Chemistry Physical and Theoretical Chemistry Cyclic voltammetry business Voltammetry Diode Voltage
Zdroj:	The Journal of Physical Chemistry B. 102:4731-4738
ISSN:	1520-5207 1520-6106
Popis:	Cyclic voltammograms have been obtained under a variety of conditions using a semiconducting photoelectrode or a circuit containing a diode in series with a metallic electrode. Simulations of the voltammetry of both types of systems were performed using a model circuit in which electrode nonideality, double-layer capacitance, and parallel resistance effects were accounted for quantitatively. The simulated voltammograms were in excellent agreement with the experimental data for a diode/electrode circuit, yielding a reliable description of the shapes of the voltammograms as well as of the voltage dropped across the diode element as a function of the total potential dropped across the circuit. The digital simulations were in good agreement with the voltammetry of p-Si/CH3OH−CoCp2+/0 contacts at high light intensities, but could not quantitatively describe the shapes of the voltammograms at low light intensities.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e25d733b6b8d474d86fa45933376796b https://doi.org/10.1021/jp980073t Zobrazit plný text záznamu