Results 161 to 170 of about 2,364 (190)

Self-intercalation in Bi2Te3〈Cu〉

Inorganic Materials, 2008
We have studied the electronic properties of Bi2Te3〈Cu〉 crystals. The results indicate that, during natural growth and subsequent self-intercalation, copper layers are formed between Te(I)-Te(I) layers in the basal plane (0001). On cleaved (0001) surfaces, quasi-two-dimensional layers with islands were found.
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Thermoelectrical properties of Bi2Te3 nanocomposites

Materials Today: Proceedings, 2019
Abstract Bi2Te3/graphite nanocomposite samples were prepared by mixing different weight percentage of graphite (x=0.0, 0.5 and 1.0) with Bi2Te3 and then subsequently ball milled. XRD results indicate the solid state insolubility of graphite phases in Bi2Te3 as no shift was observed in the peaks corresponding to Bi2Te3 in the composite samples.
V.A. Kulbashinskii, V.G. Kytin, N.V. Maslov, P. Singha, Subarna Das, A.K. Deb, A. Banerjee   +6 more
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Thermoelectric properties of Co4Sb12 with Bi2Te3 nanoinclusions.

Journal of physics. Condensed matter : an Institute of Physics journal, 2018
The figure of merit (zT) of a thermoelectric material can be enhanced by incorporation of nanoinclusions into bulk material. The presence of bismuth telluride (Bi2Te3) nanoinclusions in Co4Sb12 leads to lower phonon thermal conductivity by introducing interfaces and defects; it enhances the average zT between 300-700 K.
Ghosh, Sanyukta, Bisht, Anuj, Karati, Anirudha, Rogl, Gerda, Rogl, Peter, Murty, B S, Suwas, Satyam, Mallik, Ramesh Chandra   +7 more
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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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Properties of Bi2Se3 and Bi2Te3

2016
In this chapter I will present the fundamentals of the studied systems. I will begin by identifying the crystal structure of each system as well as their point and space group symmetries. From there I will move on to a review of measurements of the bulk vibrational structure using Raman, IR, and inelastic neutron scattering spectroscopies. Additionally,
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Properties of Bi2Te3-Bi2Se3 Alloys

Journal of Applied Physics, 1963
Lattice parameters and distribution coefficients for the Bi2Te3-Bi2Se3 pseudobinary alloy system have been determined for several compositions across the phase diagram. The c lattice constant (based on a hexagonal lattice) shows deviation from Vegard's law between 33% Bi2Se3 and pure Bi2Se3 with maximum deviation at 67% Bi2Se3.
G. R. Miller, Che-Yu Li, C. W. Spencer
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The crystal structure of Bi2Te3−xSex

Journal of Physics and Chemistry of Solids, 1963
Abstract It has been confirmed that Bi 2 Te 3 and Bi 2 Se 3 form complete solid solutions, their space group being D 5 3d - R 3 m . The unit cell dimensions for the specimens having various compositions are given. The atomic parameters are found to be u = 0.4000 and v = 0.2097 for Bi 2 Te 3 , u = 0.3958 and v = 0.2118 for Bi 2 Te 2 Se ...
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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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Bi2Te3

2008
P. Villars, K. Cenzual, J. Daams, R. Gladyshevskii, O. Shcherban, V. Dubenskyy, N. Melnichenko-Koblyuk, O. Pavlyuk, I. Savysyuk, S. Stoyko, L. Sysa   +10 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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