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Author : Patrick Kenneth Schelling
Release : 1999
Genre : Electron-electron interactions
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Theoretical Modelling of the Semiconductor-electrolyte Interface by : Patrick Kenneth Schelling
Download or read book Theoretical Modelling of the Semiconductor-electrolyte Interface written by Patrick Kenneth Schelling. This book was released on 1999. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pavel P. Konorov
Release : 2021-01-12
Genre : Technology & Engineering
Kind : eBook
Book Rating : 726/5 ( reviews)
Book Synopsis Field Effect in Semiconductor-Electrolyte Interfaces by : Pavel P. Konorov
Download or read book Field Effect in Semiconductor-Electrolyte Interfaces written by Pavel P. Konorov. This book was released on 2021-01-12. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a state-of-the-art understanding of semiconductor-electrolyte interfaces. It provides a detailed study of semiconductor-electrolyte interfacial effects, focusing on the physical and electrochemical foundations that affect surface charge, capacitance, conductance, quantum effects, and other properties, both from the point of view of theoretical modeling and metrology. The wet-dry interface, where solid-state devices may be in contact with electrolyte solutions, is of growing interest and importance. This is because such interfaces will be a key part of hydrogen energy and solar cells, and of sensors that would have wide applications in medicine, genomics, environmental science, and bioterrorism prevention. The field effect presented here by Pavel Konorov, Adil Yafyasov, and Vladislav Bogevolnov is a new method, one that allows investigation of the physical properties of semiconductor and superconductor surfaces. Before the development of this method, it was impossible to test these surfaces at room temperature. The behavior of electrodes in electrolytes under such realistic conduction conditions has been a major problem for the technical realization of systems that perform measurements in wet environments. This book also describes some material properties that were unknown before the development of the field effect method. This book will be of great interest to students and engineers working in semiconductor surface physics, electrochemistry, and micro- and nanoelectronics.
Author : Stefan Birner
Release : 2011
Genre :
Kind : eBook
Book Rating : 350/5 ( reviews)
Book Synopsis Modeling of Semiconductor Nanostructures and Semiconductor-electrolyte Interfaces by : Stefan Birner
Download or read book Modeling of Semiconductor Nanostructures and Semiconductor-electrolyte Interfaces written by Stefan Birner. This book was released on 2011. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Mantz
Release : 2010-04
Genre : Science
Kind : eBook
Book Rating : 174/5 ( reviews)
Book Synopsis Semiconductor Electrolyte Interface and Photoelectrochemistry by : R. Mantz
Download or read book Semiconductor Electrolyte Interface and Photoelectrochemistry written by R. Mantz. This book was released on 2010-04. Available in PDF, EPUB and Kindle. Book excerpt: The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Semiconductor Electrolyte Interface and Photoelectrochemistry¿, held during the 216th meeting of The Electrochemical Society, in Vienna, Austria from October 4 to 9, 2009.
Author : Huanfeng Zhu
Release : 2010
Genre : Electrochemistry
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Experimental and Theoretical Aspects of Electrode Electrolyte Interfaces by : Huanfeng Zhu
Download or read book Experimental and Theoretical Aspects of Electrode Electrolyte Interfaces written by Huanfeng Zhu. This book was released on 2010. Available in PDF, EPUB and Kindle. Book excerpt: In-situ Raman spectra of solution phase electrogenerated species were recorded in a channel flow cell. A microscope objective aligned normal to the direction of flow downstream from the edge of the working electrode was used to focus the excitation laser beam near the metal-electrode electrolyte interface and also to collect the Raman scattered light from electrogenerated species under maximum detection sensitivity. Linear correlations were found between both the gain and the loss of the integrated Raman intensity attributed to the active redox species, and the current measured at the working electrode as a function of potential. Light-activated microelectrodes in redox electrolytes were modeled theoretically using COMSOL under strict axisymmetric geometry. Dimensioned and dimensionless steady state profiles for solid state and solution phase species were predicted by solving self-consistently the transport equations and the electrostatic potential within the semiconductor phase subject to the appropriate boundary conditions. The local flux at the interface in the direction normal to the semiconductor surface was calculated as a function of photon flux intensity and bias potential. The predicted limited currents were proportional to the photon flux intensity under high bias potential, the simulation results showed that photo-generated holes in an n-type semiconductor would escape beyond the edge of the illuminated disk, thereby increasing the effective area of the light-activated microelectrode. The effect of the shape on properties of electrocatalytically active nanoparticles supported on inactive planar substrates was modeled theoretically. The results indicated very minor differences between the diffusion limited currents, ilim, for reaction on a hemisphere and full sphere with the same area. However, for prolate spheroids large enhancements were predicted as the aspect ratio was increased. Analyses of the predicted behavior of active microdisks dispersed on both planar and spherical inactive substrates suggested that currents very close to ilim could be achieved for coverage on the order of 1%. This effect might explain experimental observations for the onset potential for the oxygen reduction well ahead of the onset of the reduction of iron porphyrins adsorbed on carbon surfaces associated with the conversion from the inactive to the active form of the macrocycle.
