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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 751 to 760 of 3801 (0.036 seconds)Spelling suggestions: "subject:" solidstate"" "subject:" solidstate""
| 751 |
The deposition of titanium dioxide on silica surfacesWong, W. K. January 1982 (has links)
No description available.
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| 752 |
Aspects of the chemistry of metal oxide semiconductor gas sensorsBarrett, Edward Patrick Stephen January 1991 (has links)
No description available.
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| 753 |
Electrical and optical properties of some metal/SiOâ†x thin film systemsZaidi, Syed Zulfiqar Ali January 1996 (has links)
No description available.
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| 754 |
Optical properties and electrical conduction mechanisms of electron beam evaporated Cu-GeO2 thin cermet filmsRahman, M. Habibur January 1995 (has links)
Optical, DC, and Hall effect measurements were performed on a number of Cu-GeO2 thin cermet films with the aim of obtaining information about DC conduction mechanism. Optical absorption studies showed that incorporation of Cu in the matrix of GeO2 introduces defect states leading to a reduction in the optical energy gap. The DC conductivity results revealed that above a certain temperature Tc, conductivity increases sharply with activation energy lying in the range 0.66 to 0.77 eV. Below Tc, the conductivity is weakly activated with activation energy lying in the range 0.10 to 0.25 eV. A sign reversal in Hall mobility was observed for all the samples. Furthermore, the Hall mobility showed a maximum at a critical temperature (Tc) identical to that of the DC conductivity. This suggests that the DC conductivity is dominated by a mixed conduction process and the small polaron model best describes the conduction mechanism. From the combined knowledge of optical absorption, DC conductivity and Hall effect results a room-temperature band diagram (for 30 at.wt% Cu films) is proposed in which the mobility gap is calculated to be 3.78 eV. Above Tc, the mobility gap reduces to 2.62 eV. The frequency response of dielectric loss and the AC conductivity showed striking minima around a cut-off frequency (fm≈10⁵ Hz) indicating that a single universal power-law cannot describe the conduction mechanism for the entire frequency range. Instead, a two power-law hypothesis is advanced. Below 10⁵ Hz, the small polaron tunnelling model best describes the conduction mechanism, while above 10⁵ Hz, the conductivity is identified with photon-activated resonant processes.
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| 755 |
A study of the characteristics of probe-coils used for eddy current testingHajian, N. H. January 1984 (has links)
No description available.
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| 756 |
Experimental studies of novel MIM structures based on mixed dielectric oxidesAl-Ramadhan, F. A. S. January 1985 (has links)
No description available.
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| 757 |
Vibrational spectroscopy at high pressures using incoherent inelastic neutron scatteringAdams, Mark Anthony January 1998 (has links)
No description available.
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| 758 |
Electronic properties of co-evaporated SiOâ†x/SnO and Vâ†2Oâ†5/Bâ†2Oâ†3 thin filmsKhan, Ghazanfar Ali January 1990 (has links)
No description available.
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| 759 |
Composition of liquid ion exchangersMorabbi, M. H. January 1980 (has links)
No description available.
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| 760 |
Electric birefringence studies on lyotropic liquid crystalsNeeson, P. G. January 1982 (has links)
No description available.
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