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Now showing items 11-20 of 27
Investigation of surface energy states on Si by photoacoustic spectroscopy
(IEEE Computer Society, 2002)
The spectral and dynamic characteristics of surface energy states on Si wafer are investigated by photoacoustic (PA) spectroscopy. The PA spectra were measured as a function of the wavelength and modulation frequency of ...
Influence of carrier diffusion on the response of a resonant-cavity enhanced detector
(IEEE Journal of Quantum Electronics, 2002)
We have investigated the effects of carrier diffusion on the impulse response of a resonant-cavity enhanced photodetector using our analytic expression for a short-circuit current. Our theoretical results indicate that ...
Photo-pyro-piezo-electric elastic bending method: Investigation of metalsemiconductor structure
(IEEE Computer Society, 2002)
The metal-semiconductor (MS) junction is investigated by new method based on two techniques: the acphotovoltage and pyro-piezo-electric technique. The sample with metal-semiconductor-metal configuration was attached to the ...
Silicon resonant cavity enhanced UV flame detector
(IEEE Computer Society, 2002)
The need for selectively sensitive UV photodetectors poses a requirement both for novel detector structures and for new materials and technologies to produce them. In this paper we consider, for the first time, a possibility ...
A novel analytical model of a SiC MOSFET
(IEEE Computer Society, 2002)
This paper presents a novel analytical model for simulation of characteristics of a n-channel MOSFET based on silicon-carbide (SiC). Using known experimental results, a semiempirical relation for carrier mobility (/spl ...
Influence of adsorption-desorption process on resonant frequency and noise of micro-and nanocantilevers
(IEEE Computer Society, 2002)
Scientists in the field of NEMS today are focused on the problem of achieving the lowest detectable mass of the atomic force microscope and molecular microscope probes. This paper deals with this problem starting from the ...
Ambient-temperature operation of nonequilibrium magnetoconcentration infrared detectors in InSb and HgCdTe
(IEEE Computer Society, 2002)
We present a theoretical and experimental consideration of magnetoconcentration-based long-wavelength infrared photodetectors with nonequilibrium Auger-process suppression, designed for room-temperature operation. Our ...
A novel lectin from the sponge Haliclona cratera: isolation, characterization and biological activity
(Elsevier Science Inc, New York, 2002)
A lectin from the Adriatic sponge Haliclona cratera was purified by ion-exchange and gel chromatography The molecular mass of the lectin is approximately 29 kDa. Purified lectin is rich in hydrophobic and basic amino acids ...
Methanol electrooxidation on supported Pt and Pt-Ru catalysts in acid and alkaline solutions
(Elsevier, 2002)
The kinetics of methanol oxidation on supported 47.5 wt.% Pt and 54 wt.% PtRu (with nominal Pt:Ru ratios of 2:3) catalysts are measured in 0.5 M H2SO4 and 0.1 NaOH at 295 and 333 K using thin-film rotating disk electrode ...
The retention behaviour of some cholic acid derivatives on different adsorbents
(Research Inst Medicinal Plants, Budakalasz, 2002)
The thin-layer chromatographic behavior of cholic acid and fourteen of its synthetic derivatives has been studied in six reversed-phase and three normal-phase systems. Four significantly different adsorbents were used - ...