Trap-assisted conductivity in anodic oxide on InSb
Journal Title: Semiconductor Physics, Quantum Electronics and Optoelectronics - Year 2017, Vol 20, Issue 4
Abstract
The direct current conductivity of anodic oxide of InSb has been investigated as a function of applied bias and temperature. Proposed in this work is a model of conductivity that includes ohmic, trap-assisted tunneling and Poole–Frenkel conduction processes. Two defect states were found in the energy gap of the anodic oxide, which can be attributed to bulk traps. The asymmetry in the current-voltage characteristics is analyzed in terms of comparative distribution of the applied bias voltage between the anodic oxide and the depletion region in InSb.
Authors and Affiliations
G. V. Beketov, A. V. Sukach, V. V. Tetyorkin, S. P. Trotsenko
Effective lifetime of minority carriers in black silicon nano-textured by cones and pyramids
We calculated the dependence of effective lifetime of minority carriers in black silicon nano-textured by cones and pyramids on the diameter of the cone base, the side of the pyramid base, the height of cone and pyramid....
The role of magnetic component of a strong light field in electrostrictive effect
Electrostriction forces during laser ablation have been studied both theoretically and experimentally. The components of electroctrostriction force for inhomogeneous electromagnetic field near a substrate were proposed t...
Nanograin boundaries and silicon carbide photoluminescence
The luminescence spectra of SiC crystals and films with grain boundaries (GB) on the atomic level were observed. The GB spectra are associated with luminescence centers localized in areas of specific structural abnormali...
Performance limits of terahertz zero biased rectifying detectors for direct detection
Performance limits of uncooled unbiased field effect transistors (FETs) and Schottky-barrier diodes (SBDs) as direct detection rectifying terahertz (THz) detectors operating in the broadband regime have been considered i...
Macroscopic versus microscopic photovoltaic response of heterojunctions based on mechanochemically prepared nanopowders of kesterite and n-type semiconductors
Mechanochemically prepared nanopowder of selenium-free kesterite Cu2ZnSnS4 (CZTS) in combination with n-type semiconductors, i.e., CdS, ZnO and TiO2, was tested in planar and bulk-heterojunction solar cells. The samples...