Browsing Τμήμα Φυσικής / Department of Physics by Subject "Hydrogen"
Now showing items 1-7 of 7
-
Article
Effects of Ge concentration, boron co-doping, and hydrogenation on fiber bragg grating characteristics
(2005)In this paper, we compare photosensitivity, refractive-index modulation depth, spectral bandwidth, and excess loss through the inscription of fiber Bragg gratings in unloaded and hydrogen-loaded fibers with low- or ...
-
Article
Ellipsometry on optically thin palladium films on silicon-based substrate: Effects of low concentration of hydrogen
(2005)Optically thin palladium films evaporated on silicon substrates are investigated following exposure to low concentrations of hydrogen gas in nitrogen using spectroscopic ellipsometry. Changes in the parameters tan Ψ and Δ ...
-
Article
The nitridation of ZnO nanowires
(2012)ZnO nanowires (NWs) with diameters of 50 to 250 nm and lengths of several micrometres have been grown by reactive vapour transport via the reaction of Zn with oxygen on 1 nm Au/Si(001) at 550°C under an inert flow of Ar. ...
-
Article
Optical response of thin supported palladium films to hydrogen: Non-destructive testing for hydrogen detection
(1999)The properties of thin palladium films on silicon dioxide/silicon substrates are investigated. As the electrical properties of very thin palladium films cannot be measured, due to highly discontinuous nature of the films ...
-
Article
Optically thin palladium films on silicon-based substrates and nanostructure formation: effects of hydrogen
(2000)Optically thin palladium films evaporated on different silicon-based substrates are investigated following exposure to different concentrations of hydrogen gas in air. Laser modulated reflectance off the palladium surface ...
-
Conference Object
Photopyroelectric Pd-PVDF hydrogen sensor
(Publ by IEEE, 1989)A novel hydrogen sensor made of thin, commercially available polyvinylidene difluoride (PVDF) pyroelectric film sputter-coated with palladium (Pd) is described. An infrared laser beam, produced by an infrared (ca. 800-nm) ...
-
Article
A systematic study of the nitridation of SnO 2 nanowires grown by the vapor liquid solid mechanism
(2012)SnO 2 nanowires (NWs) with diameters of 50 nm and lengths ≥10 μm have been grown at 800 °C on 1.0 nm Au/Si(001) via the vapor liquid solid mechanism and the low pressure chemical vapor deposition. These exhibited clear ...