Results 171 to 180 of about 5,747 (199)

Photoelectrochemistry of metallochlorophylls

Coordination Chemistry Reviews, 1985
Abstract Photoinduced electron transfer from eleven metallochlorophyll a (MChl a) monolayers to a SnO2 substrate was investigated photoelectrochemically. Six MChl as [M = Pd(II), Cu(II), Hg(II), H2(II), Mg(II), and Zn(II)] gave measurable photoeffects. For the latter three pigments, two-dimensional dilution of the monolayer led to an enhancement of
T. Watanabe, K. Machida, H. Suzuki, M. Kobayashi, K. Honda   +4 more
openaire   +1 more source

Photoelectrochemistry of Culn11S17

Journal of Materials Science, 1990
Polycrystalline samples of Culn11S17 have been prepared by the homogeneous precipitation technique. The electron probe microanalyses (EPMA) have shown the presence of excess sulphur with as-precipitated samples, which has been considerably reduced by subsequent annealing. From the reflectance measurements, the band gap has been determined to be 1.45eV.
K. Basavaswaran, Y. Ueno, T. Sugiura, H. Minoura   +3 more
openaire   +1 more source

Photoelectrochemistry at bipolar semiconductor electrodes

Journal de Chimie Physique, 1996
Photoelectrochemistry may be performed on semiconductor wafers without application of metal contacts, using a cell in which the semiconductor sample is clamped between two suitable electrolytic solutions. Electrochemical control is obtained by applying a potential difference between two metal electrodes inserted in the solutions.
Cattarin S, Musiani M
openaire   +3 more sources

Photoelectrochemistry: Introductory concepts

Journal of Chemical Education, 1983
The authors discuss some simple concepts of solid state physics in order to more accurately describe photoelectrochemistry and semiconductor electrodes. From State-of-the-Art Symposium: Electrochemistry, ACS meeting, Kansas City, 1982.
openaire   +1 more source

The photoelectrochemistry of galena

International Journal of Mineral Processing, 1994
Abstract The photoresponse of galena to chopped illumination has been studied to elucidate the surface oxidation of this mineral relevant to flotation. The results substantiated previous findings that sulfur remains in the mineral lattice during the initial stages of oxidation.
P.E. Richardson, R.-H. Yoon, R. Woods, A.N. Buckley   +3 more
openaire   +1 more source

Photoelectrochemistry for Biosensors

ECS Meeting Abstracts, 2016
Photoelectrochemical biosensing is a new kind of sensor technique, which is developed on the combination of photoelectrochemical process and electrochemical analysis technology. As an ideal sensor technique, photoelectrochemical biosensing has attracted considerable research interests.
Jun-Jie Zhu, Gao-Chao Fan, Jian-Rong Zhang   +2 more
openaire   +1 more source

Single Nanosheet Photoelectrochemistry

ECS Meeting Abstracts, 2018
Nanoflake thin films made of layered semiconducting transition metal dichalcogenides such as MoSe2 are promising large-area electrodes for photoelectrochemical solar energy conversion applications. However, their energy conversion efficiencies are typically much lower than bulk electrodes.
openaire   +1 more source

Dynamic aspects of semiconductor photoelectrochemistry

Chemical Reviews, 1988
This chapter reviews the mechanism of photocurrent generation at the illuminated semiconductor/electrolyte interface and develops a simplified description of the kinetics of minority carrier reactions (including surface recombination) which can be solved for the non steady-state case. Pulsed, chopped and sinusoidally modulated optical perturbations are
openaire   +1 more source

Photoelectrochemistry and Applications

2010
In this section, we will be concerned with applications of photoelectrochemical cells (PEC). The term “photoelectrochemical” refers to any situation wherein light is used to augment an electrochemical process; the prefix photo implies in particular radiation of some kind, typically visible light of a continuous frequency range (e.g., solar) or of a ...
openaire   +1 more source

Photoelectrochemistry of Polyaniline

1987
@@ This structure has recently been confirmed by a step-wise synthesis of the polymer (2). Reduction of the polymer ultimately results in the formation of the pale yellow 1eucoemeraldine oxidation state (y = 1); oxidation results ultimately in the formation of the unstable intense violet perni-graniline oxidation state (y = 0).
Mei Xiang Wan, A. G. MacDiarmid, A. J. Epstein   +2 more
openaire   +1 more source