The disinfection of bacteria by thermally excited pyroelectric materials in aqueous environments provides opportunities for the development of new means of sanitization. However, little is known about the formation of reactive oxygen species (ROS) at the surface of the thermally excited pyroelectric materials. To investigate the pyroelectrically driven ROS generation we performed OH radical spe...

The possibility of optical readout has been studied for the detectors based on MgB4O7:Dy,Na. It is shown that due to release electrons from traps instead holes under illumination by light, optically stimulated luminescence not observed, despite effective erasing thermally glow curves light. By analogy with MgB4O7:Tm, a model processes occurring during thermoluminescence presented.

Thick oxides deposited on 4H-SiC epilayers to form Metal-Oxide-Semiconductor capacitors have been studied by Capacitance-Voltage (C-V) and Thermally Stimulated Ionic Current (TSIC) measurements. The very negative flatband voltage VFB in regards the theoretical value indicates presence oxide of a large number positive charges. Positive mobile charges are responsible for part this unusual VFB, as...

Films of α-Ga2O3 grown by Halide Vapor Phase Epitaxy (HVPE) were irradiated with protons at energies 330, 400, and 460 keV fluences 6 × 1015 cm−2 7 MeV C4+ ions a fluence 1.3 1013 characterized suite measurements, including Photoinduced Transient Current Spectroscopy (PICTS), Thermally Stimulated (TSC), Microcathodoluminescence (MCL), Capacitance–frequency (C–f), photocapacitance Admittance (AS...

Photovoltaic effects on Franz–Keldysh oscillations in photoreflectance spectra: Application to determination of surface Fermi level and surface recombination velocity in undoped Ga As ∕ n-type GaAs epitaxial layer structures Detection of surface states in GaAs and InP by thermally stimulated exoelectron emission spectroscopy Temperature dependence of photoluminescence spectra in InAs/GaAs quant...

The gain of erbium-doped fiber amplifiers is damaged by irradiation partly because of creation of color centers responsible of excess absorption at pump and signal wavelengths. Based on the combination of thermally stimulated luminescence and spectrophotometry, this Letter demonstrates that a part of the gain loss should be associated with the reduction of the density of Er3+ ions by irradiation.

This paper implements a simultaneous solar and thermal energy harvesting system, as hybrid (HEH) to convert ambient light into electrical through photovoltaic (PV) cells heat absorbed in the body of PV cells. Indeed, panel equipped with serially connected thermoelectric generators not only converts incoming electricity but also takes advantage emanating from light. In conventional HEH diode blo...