Engineering a material's work function is of central importance for many technologies and in particular electron emitters used high-power vacuum electronics thermionic energy converters. A low surface typically achieved through unstable functional species, especially high power emitter applications. Discovering engineering new materials with intrinsic, stable functions obtainable without volati...

Injection from metallic electrodes serves as a main channel of charge generation in organic semiconducting devices and the quantum effect is normally regarded essential. We develop dynamic approach based upon surface-hopping (SH) algorithm classical device modeling, by which both tunneling thermionic emission charge-carrier injection at metal-organic interfaces are concurrently investigated. Th...

AbstructThe history, application options, and ideal basic performance of the thermionic energy converter are outlined. The basic plasma types associated with various modes of converter operation are described, with emphasis on identification and semi-quantitative characterization of the dominant physical processes and utility of each plasma type. The frontier plasma science issues in thermionic...

The 2H molybdenum telluride (MoTe2) photodetector structures were made with inserting 1T-MoTe2 interlayer contacts. optical response properties such as photoconductivity (PC) spectroscopy, illumination intensity dependent photoresponsivity, frequency photocurrent, and time-resolved photoresponse carried out in this study. In PC spectra, a much higher photoresponsivity of 2H-MoTe2 observed by co...

The benefits of thermionic emission from negatively biased electrodes for perpendicular electric field control in a magnetized plasma are examined through its combined effects on the sheath and potential variation along magnetic lines. By increasing radial current flowing is confirmed to improve over at edge compared case cold electrode. Conversely, shown be responsible an increase drop lines q...

Abstract The present paper focuses on the properties of p–Si/ ZnS x Se 1−x (0 ≤ 1) heterojunctions in photodetector applications. heterostructures were fabricated by depositing ZnSSe Si wafer using thermal co-evaporation technique with and ZnSe powders. GIXRD study showed that films cubic phase, prominent peak was shifted composition x. maximum crystallite size found for = 0.8. presence point d...

We report measurements of the azimuthal emission nonuniformity of a gyrotron's thermionic cathode as determined from two experiments, one which determines the total emission and one which scans the emitted beam using a rotating probe. In the total emission experiment, which measured the total collector current over a range of voltages, the cathode's total work function spread was found to be 0....