Results 211 to 220 of about 3,551 (254)

A Study of the Surface Photovoltage of ZnO-Resin Layers

Applied Optics, 1969
The surface photovoltage of ZnO resin layer has been used as the basis for an imaging process generally known as chargeless electrophotography. This paper explores effects of the ambient air pressure and the layer temperature on the surface photovoltage of ZnO resin layers. Experiments were made by using ZnO-silicone resin layer, ZnO-alkyd resin layer,
I, Tashiro, T, Kimura, K, Endo
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The spectral dependence of the surface photovoltage in CdS

Journal of Physics D: Applied Physics, 1975
The photovoltage developed between the surface of a single crystal of photo-conducting CdS and a metal reference electrode has been measured as a function of wavelength and temperature. By comparing the photovoltage in the 1.3-1.6 mu m region with photocurrent measurements made under similar conditions it is shown that the same bulk states are involved
M A Channon, J R Maltby, C E Reed, C G Scott   +3 more
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Preparation and Surface Photovoltage Characterization of Cu2O

Rare Metal Materials and Engineering, 2015
We have synthesized two types of Cu2O samples with size about 700 nm by a facile reduction route. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) and surface photovoltage spectroscopy (SPS).
Xu Shuang, Cheng Jihang, Jiao Yang, Song Nuan, Shi Jingyuan, Li Jun   +5 more
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Surface photovoltage studies of multilayered structures

Journal of Electroanalytical Chemistry, 2003
Abstract Surface photovoltage (SPV) measurements were used to study InAs/GaAs multilayered structures. Two types of sample grown by molecular beam epitaxy were investigated: a quantum dot sample containing a fifteen-layer stack of InAs quantum dots (QD), each separated by GaAs layers, and a multi-quantum well sample.
C.F. de Souza, H.E. Ruda, S. Fafard
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Bidirectional surface photovoltage on a topological insulator

Physical Review B, 2019
Controlled extraction of spin-polarized currents from the surface of topological insulators (TIs) would be an important step to use TIs as spin-electronic device materials. One way is to utilize the surface photovoltage (SPV) effect, by which the surface current may flow upon irradiation of light.
T. Yoshikawa, K. Sumida, Y. Ishida, J. Chen, M. Nurmamat, K. Akiba, A. Miyake, M. Tokunaga, K. A. Kokh, O. E. Tereshchenko, S. Shin, A. Kimura   +11 more
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Surface photovoltage in hydrogenated amorphous silicon

Applied Physics Letters, 1984
By solving Poisson’s equation in dark and light, it is concluded that the observed surface photovoltage in hydrogenated amorphous silicon necessarily involves a transfer of charge between the surface states and the space-charge region, and does not directly give the band bending. Experimental evidence which supports this conclusion is presented.
Shailendra Kumar, S. C. Agarwal
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Surface photovoltage and photoelectron spectra of GaP

Solid State Communications, 2007
Surface photovoltage (SPV) and photoelectron spectra (PES) of crystalline n-GaP wafers have been studied at 300 K. The magnitude of the surface potential (Vs) decreases in the presence of photons with energy more than the band gap, however the magnitude of Vs increases in the presence of photons with sub band gap energy.
Shailendra Kumar, D.M. Phase, Sanjay Porwal, T.K. Sharma   +3 more
openaire   +1 more source

Electron Beam Enhanced Surface Photovoltage

Japanese Journal of Applied Physics, 1982
A SiO2-covered p-type Si wafer 76 mm in diameter was irradiated by a focused electron beam of 30 keV. The resistivity of the wafer was 1 mΩm, and the SiO2 layer formed by the wet oxidation process was 360 nm thick. Four electron dosages were used: 2×10-7, 5×10-7, 1×10-6 and 5×10-6 C/cm2.
Chusuke Munakata, Shinji Okazaki, Kunihiro Yagi   +2 more
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Highly sensitive immunosensor with a surface photovoltage technique

Applied Biochemistry and Biotechnology, 1993
An ac surface photo voltage technique was successfully applied to construct a highly sensitive immuno-sensor by reducing the ion screening effect. A low noise amplification was attained by using a phase sensitive amplification technique, which made it possible to use low-ion density electrolyte leading to suppress the ion screening effect. The response
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Surface photovoltage in quantum well structures

Journal of Applied Physics, 2002
A theoretical expression for surface photovoltage VSPV in semiconductor structures with a single or series of quantum wells in the space charge region is derived. The cases of both linear and quadratic recombination in the quantum wells are considered.
H. Ruda, A. Shik
openaire   +1 more source