Electron tunneling at the semiconductor-insulator-electrolyte interface. Photocurrent studies of the n-InP-alkanethiol-ferrocyanide system
Article Abstract:
Electronic tunneling through self-assembled monolayer films on n-InP semiconductor electrodes has been studied. The research delves on the dependence of the photocurrent on control parameters of the photoelectrochemical cell. The photocurrent is determined by the electron-transfer rate constant, the concentration of the redox couple and the concentration of photogenerated holes at the electrode surface. Results indicate that the photocurrent is a linear function at low concentrations of an equimolar mixture of ferricyanide and ferrocyanide. The reaction becomes zero order in the redox concentration.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Thermodynamic analysis of phase coexistence and stability in textured amphiphilic monolayers at the air/water interface
Article Abstract:
The equilibrium behavior of surfactant monolayers in the liquid-expanded/liquid-condensed coexistence region is analyzed. To understand the trends examined in the phase equilibria in an amphiphilic monolayer, a formulation of the monolayer free energy is necessary at a mesoscopic level particularly, the calculation of the exact nature of the free energy of mixing, Gmix, which involves a 2D equation of state for the film. The results are discussed.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Monolayers and 3D films of cholesteryl derivatives at the air-water interface
Article Abstract:
Cholestrol and its derivatives have been studied at the air-water (A-W) interface. The assembly of molecules in the different phases of the A-W interface for the cholesteryl derivatives with respect to their packaging in the bulk and the onset of smetic liquid - crystalline phases are discussed.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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