Temperature Dependence of Photoelectrical Properties of Single Selenium Nanowires
نویسندگان
چکیده
Influence of temperature on photoconductivity of single Se nanowires has been studied. Time response of photocurrent at both room temperature and low temperature suggests that the trap states play an important role in the photoelectrical process. Further investigations about light intensity dependence on photocurrent at different temperatures reveal that the trap states significantly affect the carrier generation and recombination. This work may be valuable for improving the device optoelectronic performances by understanding the photoelectrical properties.
منابع مشابه
The study of humidity effect on carbon dioxide gas sensing properties of zinc oxide nanowires assisted by polyvinyl alcohol network at room temperature
In this research, Zinc oxide (ZnO) nanostructures were synthesized by low cost hydrothermal method. The grown ZnO nanostructures had a dispersed distribution with nanowire morphology and the specific surface area of about 7 m2.gr-1 which they have crystalized in hexagonal wurtzite structure. ZnO nanowires/polyvinyl alcohol network (ZP) on the epoxy glass substrate with cu-interdigited electrods...
متن کاملHigh-yield synthesis of selenium nanowires in water at room temperature.
High-quality t-Se nanowires were obtained in high yield via a facile and environmentally benign route in water at room temperature by using ascorbic acid as the reducing agent under the assistance of beta-cyclodextrin.
متن کاملMagnetotransport properties of polycrystalline and epitaxial chromium dioxide nanowires
Temperature dependent magnetotransport measurements were performed on polycrystalline and epitaxial chromium dioxide CrO2 nanowires fabricated using the selective-area growth technique. Polycrystalline nanowires showed a negative temperature coefficient of resistivity at low temperatures because of strong grain boundary scattering. The magnetoresistance MR value exhibited a width dependence, re...
متن کاملInvestigations of Magnetic Properties Through Electrodeposition Current and Controlled Cu Content in Pulse Electrodeposited CoFeCu Nanowires
CoFeCu nanowires were deposited by pulsed electrodeposition technique into the porous alumina templates by a two-step mild anodization technique, using the single-bath method. The electrodeposition was performed in a constant electrolyte while Cu constant was controlled by electrodeposition current. The electrodeposition current was 3.5, 4.25, 5 and 6 mA. The effect of electrodeposition current...
متن کاملImproving Gas Sensing Properties of Tin Oxide Nanowires Palladium-Coated Using a Low Cost Technique
Thin films of SnO2 nanowires were successfully prepared by using chemical vapor deposition (CVD) process on quartz substrates. Afterwards, a thin layer of palladium (Pd) as a catalyst was coated on top of nanowires. For the deposition of Pd, a simple and low cost technique of spray pyrolysis was employed, which caused an intensive enhancement on the sensing response of fabricated sensors...
متن کامل