Buscar
Mostrando ítems 1-10 de 340
Photoconductivity for silver nitrate in nanostructured sol-gel materials
(Journal of Nanoscience and Nanotechnology, 2013-01-16)
Photoconductivity excitation spectrum for stretch-oriented PPV
(Elsevier B.V., 2005-09-22)
We have obtained the photoconductivity (PC) excitation spectrum for a stretch-oriented poly(paraphenylene vinylene) film over a wide spectral range (up to 5 eV). The measurements were performed in the surface cell configuration ...
Photoconductivity excitation spectrum for stretch-oriented PPV
(Elsevier B.V., 2005-09-22)
We have obtained the photoconductivity (PC) excitation spectrum for a stretch-oriented poly(paraphenylene vinylene) film over a wide spectral range (up to 5 eV). The measurements were performed in the surface cell configuration ...
Light-intensity dependence of the steady-state photoconductivity used to estimate the density of states in the gap of intrinsic semiconductors
(Elsevier Science Sa, 2005-09)
We present a method to obtain the density of states of photoconductive semiconductors based on the light-intensity dependence of the steadystate photoconductivity. A simple expression—relating the density of states at the ...
Influence of the band bending on the photoconductivity of Li-doped ZnO microwires
(Pergamon-Elsevier Science Ltd, 2017-05)
Combining photoconductivity and photoluminescence measurements we have studied the band bending behavior with the Li-doping content in ZnO microwires. Our results reveal the presence of in-gap acceptor levels with energies ...
Determination of the hydrogenated amorphous silicon density of states parameters from photoconductivity measurements
(Natl Inst Optoelectronics, 2009-12)
In this paper, after a short recall of the information that can be extracted from different experiments based on the photoconductivity properties of a semiconductor, we present experimental results obtained on a thin film ...
Role of defects and their complexes on the dependence of photoconductivity on dark resistivity of single ZnO microwires
(American Institute of Physics, 2017-02)
We have studied the correlation between the photoconductivity and the dark resistivity of single ZnO microwires. We found that as-grown microwires with higher dark resistivities have higher photoconductivities. However, ...
Oxygen related defects excitation and photoconductivity dependence of SnO2 sol-gel films with several light sources
(1999-12-01)
Since oxygen vacancies act as donors in SnO2, the electrical properties are related to deviation from stoichiometric composition. Depending on stoichiometry SnO2 can be highly insulating or may exhibit fairly high n-type ...
Oxygen related defects excitation and photoconductivity dependence of SnO2 sol-gel films with several light sources
(1999-12-01)
Since oxygen vacancies act as donors in SnO2, the electrical properties are related to deviation from stoichiometric composition. Depending on stoichiometry SnO2 can be highly insulating or may exhibit fairly high n-type ...