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Continuous-time photoelectron spectroscopy (PES) and continuous-time core-level photon-stimulated desorption (PSD) spectroscopy were used to study the monochromatic soft X-ray-induced reactions of CCl 2 F 2 molecules adsorbed on Si(111)-7×7 at 30K (CCl 2 F 2 dose=2.0×10 14 molecules/cm 2 , ~0.75 monolayer) near the Si(2p) core level. Evolution of adsorbed...
Soil degradation and retrogression have been widely concerned in China in the last several decades due to inadequate utilization, application of various agrochemicals and pesticides, soil pollution, rapid urbanization, and frequent human activities. Degradation of agricultural soils may not only result in some health risks to soil ecosystems, but also affect food quality and safety. This study was...
Applications of high frequency radiation, in the ranges of 30-300 GHz (millimeter-wave) and 300-1000 GHz (terahertz), require the development of specialized components, specifically low-loss waveguides and antennas. Conventional waveguide antennas must be flared in both lateral dimensions requiring a large space and are challenging to fabricate. Previous work has shown the promise of tapered dielectric...
A series of all perovskite oxide p-n heterojunctions (PNHs) as well as perovskite oxide and Si PNHs have been fabricated by a laser molecular-beam epitaxy. The surfaces and interfaces of the PNHs are atomically smooth. The good nonlinear and rectifying I-V characteristics in the PNHs, unusual and high sensitivity of positive magnetoresistance in low magnetic field in SrNbxTi1-xO3/La1-ySry MnO3 and...
Two-dimensional location control of large Si grains by, so-called, μ-Czochralski process with excimer-laser crystallization enables formation of thin-film transistors inside a grain; single-grain Si TFTs. In this study, the effect was studied of remaining defects inside the location-controlled grains on the electrical performance of single-grain Si TFTs. From electron backscattering diffraction analysis,...
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