Semiconductor electrodes. 59. Photocurrent efficiencies at p-indium phosphide electrodes in aqueous solutions
نویسندگان
چکیده
The Journal of Physical Chemistry is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Semiconductor electrodes. 59. Photocurrent efficiencies at p-indium phosphide electrodes in aqueous solutions Navin Chandra, Bob L. Wheeler, and Allen J. Bard J. Phys. Chem., 1985, 89 (23), 5037-5040 • DOI: 10.1021/j100269a030 Downloaded from http://pubs.acs.org on February 4, 2009
منابع مشابه
Semiconductor electrodes. 24. Behavior of photoelectrochemical cells based on p-type gallium arsenide in aqueous solutions
The electrochemical behavior of single-crystal p-type GaAs in aqueous solutions containing several redox couples (13-/1-, Fe(III)/Fe(II), Sn(IV)/Sn(II), Eu(III)/Eu(II)) in the dark and under irradiation is described. The observation that the difference in potential between that for the onset of photocurrent and the standard potential for the redox couple was 0.40.5 V, independent of the couple,...
متن کاملLVII. Differential Photocurrent and Second Harmonic Techniques for in situ Monitoring of Surface States on n-MoSe2 in Aqueous Solutions
Second harmonic ac impedance and differential photocurrent techniques are employed to monitor, in situ, the surface states on n-MoSes electrodes in aqueous solutions containing the Fe(CN)6 s-/4couple. These two techniques are qualitatively more sensitive to the presence of surface states on single-crystal n-MoSes than first harmonic ac techniques. Surface states on this semiconductor electrode ...
متن کاملLightly Fluorinated Graphene as a Protective Layer for n-Type Si(111) Photoanodes in Aqueous Electrolytes.
The behavior of n-Si(111) photoanodes covered by monolayer sheets of fluorinated graphene (F-Gr) was investigated under a range of chemical and electrochemical conditions. The electrochemical behavior of n-Si/F-Gr and np(+)-Si/F-Gr photoanodes was compared to hydride-terminated n-Si (n-Si-H) and np(+)-Si-H electrodes in contact with aqueous Fe(CN)6(3-/4-) and Br2/HBr electrolytes as well as in ...
متن کاملPHOTOELECTROCHEMICAL STUDIES ON THE MONOLAYER ASSEMBLIES OF CHLOROPHYLL a ON THE QUANTUM EFFICIENCY OF PHOTOCURRENT GENERATION
Characteristics and quantum efficiencies of photocurrents at monolayer, mixed monolayers, and multilayers of chlorophyll a deposited on semiconducting SnOz electrodes and/or metal electrodes were surveyed. The quantum efficiency of photocurrent depends on the surface concentration of chlorophyll a as well as the thickness of layers. The photocurrent behavior of chlorophyll a multilayers is comp...
متن کاملEfficient solar water oxidation using photovoltaic devices functionalized with earth-abundant oxygen evolving catalysts.
Indium tin oxide (ITO) surfaces of triple junction photovoltaic cells were functionalized with oxygen evolving catalysts (OECs) based on amorphous hydrous earth-abundant metal oxides (metal = Fe, Ni, Co), obtained by straightforward Successive Ionic Layer Adsorption and Reaction (SILAR) in an aqueous environment. Functionalization with Fe(iii) oxides gave the best results, leading to photoanode...
متن کامل