Results 191 to 200 of about 14,384 (217)

Synthesis of polycrystalline nanotubular Bi2Te3

Materials Chemistry and Physics, 2009
Polycrystalline nanotubular Bi2Te3 could be prepared via a high-temperature solution process using nanoscale tellurium, decomposed from trioctylphosphine oxide (TOPO) extracted tellurium species (Te-TOPO), as sacrificial template. The formation of such tubular structure is believed to be the result of outward diffusion of Te during the alloying process.
Zhanli Chai, Zeping Peng, Cheng Wang, Hongjie Zhang   +3 more
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Heterodiffusion of selenium in Bi2Te3

Physics Letters A, 1988
Abstract We present results for the anisotropic diffusion coefficient of selenium, isoelectronic impurity, in Bi2Te3 along the solidus. The experimental conditions permitted us to obtain a definite stoichiometric deviation, and diffusion profiles were obtained by SIMS.
H. Scherrer, B. Hammou, J.P. Fleurial, S. Scherrer   +3 more
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The quasibinary system In2Te3-Bi2Te3

Journal of the Less Common Metals, 1968
Abstract The In 2 Te 3 -Bi 2 Te 3 isopleth has been investigated by using a combination of thermal analysis, X-ray and micrographic techniques. A eutectic, melting at 571 °C, occurs at 66 ± 0.5% Bi 2 Te 3 . The solid-solubility of Bi 2 Te 3 in In 2 Te 3 is immeasurably small; Bi 2 Te 3 dissolves 20% In 2 Te 3 at the eutectic temperature and 5 ...
L.R. Scherpereel, P.L. Palumbo, E.A. Peretti   +2 more
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Polyol Synthesis of Nano-Bi2Te3

Journal of Electronic Materials, 2014
In this work, a simple and easily scalable wet-chemical synthesis of nanoscale Bi2Te3 has been developed. Bi2Te3 nanoparticles were produced via a polyol method by reaction of Na2Te in solution with a selection of bismuth(III) salts in boiling ethylene glycol. Depending on the reaction temperature and time, particles with size ranging between 20 nm and
Kaspar, Katrin, Pelz, Uwe Martin, Hillebrecht, Harald   +2 more
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ChemInform Abstract: SYSTEM IN2SE3‐BI2TE3

Chemischer Informationsdienst, 1974
AbstractDas Zustandsdiagramm des Titelsystems wird durch thermische und röntgenographische Analyse ermittelt.
D. P. BELOTSKII, L. V. LEGETA
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Tetradymites: Bi2Te3-Related Materials

2016
As early as 1954, Goldsmid and Douglas [1] identied the materials that are now the most commonly used in the thermoelectric industry for either Peltier cooling or thermoelectric power generation. These materials belong to the class of tetradymite-type semiconductorsCONTENTS2.1 Introduction 39 2.2 Structure 42 2.3 Electronic Band Structures ...
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Physical Properties of Bi2Te3 Nanolayers

2014
The properties of very thin Bi2Te3 (nano-) layers of different thickness prepared by pulsed laser deposition at different fluences are presented. Thermoelectric properties such as the thermal conductivity, the in-plain electrical conductivity, the Seebeck coefficient and also crystallinity, composition and morphology are presented.
R. Zeipl, M. Jelínek, M. Vlček, T. Kocourek, J. Vaniš, J. Remsa   +5 more
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ИССЛЕДОВАНИЕ СИСТЕМЫ Bi2Te3-Pr2Te3

Перспективные исследования в технических и естественных науках: сборник статей международной научной конференции (Великий Новгород, Декабрь 2023)
Методами физико-химического анализа изучено фазообразование в тройной системе Pr-Bi-Te. Построена диаграмма состояния разреза системы: Bi2Te3-Pr2Te3,. В системе обнаружена новое тройное фазы с составом PrBiTe3 и области твердого раствора ~3-5 мол% при 300К.
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ИССЛЕДОВАНИЕ СИСТЕМЫ Bi2Te3-Er2Te3

"Вектор научной мысли"
Методами дифференциально – термического, рентгенофазового и микроструктурного анализов и также измерением микротвердости и плотности исследовано разреза Bi2Te3-Er2Te3тройной системы Er- Bi- Te. В системе образуются тройное соединение состава ErBiTe3кристаллизующееся в гексагональной решетке с параметрами: a=4,20; c= 31,11Å (c/a=7,1).
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Properties of Bi2Te3-Sb2Te3 Alloys

Journal of Applied Physics, 1962
The phase diagram for the Bi2Te3–Sb2Te3 pseudo-binary system is of the solid-solution type, where the distribution coefficient k is equal to unity at 33.3 and 66.7 mole % Sb2Te3. The c lat tice parameter remains essentially constant across the diagram at 30.49 Å for both slowly crystallized and quenched alloys.
Mac J. Smith, R. J. Knight, C. W. Spencer   +2 more
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