Thermoelectric Properties and Low-Energy Carrier Filtering by Mo Microparticle Dispersion in an n-Type (CuI)0.003Bi2(Te,Se)3 Bulk Matrix

2020 ◽  
Vol 12 (34) ◽  
pp. 38076-38084 ◽  
Author(s):  
Hyunyong Cho ◽  
Song Yi Back ◽  
Jae Hyun Yun ◽  
Seokyeong Byeon ◽  
Hyungyu Jin ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Energy Carrier ◽  
Low Energy ◽  
Bulk Matrix

Low-energy carrier dynamics in graphene and other 2D materials

2018 ◽  
Author(s):  
S. Winnerl ◽  
J. C. Konig-Otto ◽  
M. Mittendorff ◽  
A. Pashkin ◽  
T. Venanzi ◽  
...  
Keyword(s):  
2D Materials ◽  
Carrier Dynamics ◽  
Energy Carrier ◽  
Low Energy

Preferential phonon scattering and low energy carrier filtering by interfaces of in situ formed InSb nanoprecipitates and GaSb nanoinclusions for enhanced thermoelectric performance of In0.2Co4Sb12

2020 ◽  
Vol 49 (44) ◽  
pp. 15883-15894
Author(s):  
Sanyukta Ghosh ◽  
Gyan Shankar ◽  
Anirudha Karati ◽  
Gerda Rogl ◽  
Peter Rogl ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Phonon Scattering ◽  
Energy Carrier ◽  
Low Energy ◽  
Thermoelectric Performance

The dispersion of GaSb and InSb nanoinclusions in In-filled Co4Sb12 results in low lattice thermal conductivity and high thermoelectric performance.

Evolution of nanostructured single-phase CoSb3 thin films by low-energy ion beam induced mixing and their thermoelectric performance

2017 ◽  
Vol 19 (36) ◽  
pp. 24886-24895 ◽  
Author(s):  
Manju Bala ◽  
Srashti Gupta ◽  
Sanjeev K. Srivastava ◽  
Sankarakumar Amrithapandian ◽  
Tripurari S. Tripathi ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thermoelectric Properties ◽  
Single Phase ◽  
Ion Beam ◽  
Low Energy ◽  
Thermoelectric Performance

We report that a nanostructured CoSb3 thin film in a single phase can be synthesized by ion beam processing of Co/Sb bilayer thin films with better thermoelectric properties.

scholarly journals Reasons of realization of low energy consuming houses on rural areas

2015 ◽  
Vol 14 (4) ◽  
pp. 055-066
Author(s):  
Mirosława Górecka
Keyword(s):  
Natural Environment ◽  
Rural Areas ◽  
Energy Carrier ◽  
Low Energy ◽  
Building Construction ◽  
Energy Sources ◽  
Family Farms ◽  
Open Area ◽  
Rural Buildings ◽  
Energy Consuming

In the introduction of the paper, the term of low energy consuming building construction and the essence of its realization on rural areas are explained. The basic reasons of building of low energy consuming houses were detailed, such as: the protection of natural environment of rural areas, among others through establishing ecological family farms, reduction of heating costs of rural buildings situated in an open area (belonging mainly to farmers’ families); the possibility of application of unconventional energy sources supporting systems which supply a conventional energy carrier, the systems being often unreliable, ineffective and expensive for the consumers.

Properties of Nanostructured One-Dimensional and Composite Thermoelectric Materials

MRS Bulletin ◽  
2006 ◽  
Vol 31 (3) ◽  
pp. 218-223 ◽  
Author(s):  
Apparao M. Rao ◽  
Xiaohua Ji ◽  
Terry M. Tritt
Keyword(s):  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Vapor Deposition ◽  
Composite Structures ◽  
Carbon Nanostructures ◽  
Chemical Vapor ◽  
One Dimensional ◽  
Bulk Matrix ◽  
Low Dimensional

AbstractOver a decade ago, Dresselhaus predicted that low-dimensional systems would one day serve as a route to enhanced thermoelectric performance.In this article, recent results in the thermoelectric properties of nanowires and nanotubes are discussed. Various synthesis techniques will be presented, including chemical vapor deposition for the growth of thermoelectric nanostructures in templated alumina.Electrical transport measurements of carbon nanostructures, such as resistivity and thermopower, have revealed some very interesting thermoelectric properties.Challenges still remain concerning the measurement of individual nanostructures such as nanowires.Much work has been performed on the thermoelectric properties of carbon nanotubes, and these results will be highlighted.In addition, routes for enhanced thermoelectric materials have focused on incorporating nanostructures within the bulk materials.The role of these “hybrid composite structures” based on nanomaterials incorporated into the bulk matrix and the potential for enhanced performance are discussed.

Low Temperature, Low Energy Carrier (LoTEC©) and Phase Change Materials (PCMs) for Biological Samples

2000 ◽  
Author(s):  
F. C. Wessling ◽  
L. S. Stodieck ◽  
A. Hoehn ◽  
S. Woodard ◽  
S. O’Brien ◽  
...  
Keyword(s):  
Low Temperature ◽  
Phase Change ◽  
Biological Samples ◽  
Phase Change Materials ◽  
Energy Carrier ◽  
Low Energy

Dissociated Σ=27 boundaries in silicon

1988 ◽  
Vol 46 ◽  
pp. 624-625
Author(s):  
A. Garg ◽  
W.A.T. Clark ◽  
J.P. Hirth
Keyword(s):  
Electron Diffraction ◽  
Local Minimum ◽  
Boundary Energy ◽  
Coincidence Site Lattice ◽  
Boundary Plane ◽  
Low Energy ◽  
Theoretical Understanding ◽  
Site Lattice ◽  
Kikuchi Pattern ◽  
Analysis Techniques

In the last twenty years, a significant amount of work has been done in the theoretical understanding of grain boundaries. The various proposed grain boundary models suggest the existence of coincidence site lattice (CSL) boundaries at specific misorientations where a periodic structure representing a local minimum of energy exists between the two crystals. In general, the boundary energy depends not only upon the density of CSL sites but also upon the boundary plane, so that different facets of the same boundary have different energy. Here we describe TEM observations of the dissociation of a Σ=27 boundary in silicon in order to reduce its surface energy and attain a low energy configuration.The boundary was identified as near CSL Σ=27 {255} having a misorientation of (38.7±0.2)°/[011] by standard Kikuchi pattern, electron diffraction and trace analysis techniques. Although the boundary appeared planar, in the TEM it was found to be dissociated in some regions into a Σ=3 {111} and a Σ=9 {122} boundary, as shown in Fig. 1.

Transfer optics for high spatial resolution electron spectroscopy

1988 ◽  
Vol 46 ◽  
pp. 666-667
Author(s):  
G. G. Hembree ◽  
Luo Chuan Hong ◽  
P.A. Bennett ◽  
J.A. Venables
Keyword(s):  
Magnetic Field ◽  
Scanning Transmission Electron Microscope ◽  
Low Energy ◽  
Objective Lens ◽  
State University ◽  
Arizona State University ◽  
Initial Field ◽  
Resolution Electron ◽  
Scanning Transmission ◽  
Low Energy Electrons

A new field emission scanning transmission electron microscope has been constructed for the NSF HREM facility at Arizona State University. The microscope is to be used for studies of surfaces, and incorporates several surface-related features, including provision for analysis of secondary and Auger electrons; these electrons are collected through the objective lens from either side of the sample, using the parallelizing action of the magnetic field. This collimates all the low energy electrons, which spiral in the high magnetic field. Given an initial field Bi∼1T, and a final (parallelizing) field Bf∼0.01T, all electrons emerge into a cone of semi-angle θf≤6°. The main practical problem in the way of using this well collimated beam of low energy (0-2keV) electrons is that it is travelling along the path of the (100keV) probing electron beam. To collect and analyze them, they must be deflected off the beam path with minimal effect on the probe position.

Computer programs for the calculation of x-ray intensities emitted by elements in multi-layer structures

1990 ◽  
Vol 48 (2) ◽  
pp. 216-217
Author(s):  
G.F. Bastin ◽  
H.J.M. Heijligers ◽  
J.M. Dijkstra
Keyword(s):  
Software Package ◽  
Light Element ◽  
Matrix Correction ◽  
Excellent Performance ◽  
Element Analysis ◽  
X Ray ◽  
Know How ◽  
Accurate Knowledge ◽  
Layer Structures ◽  
Bulk Matrix

For the calculation of X-ray intensities emitted by elements present in multi-layer systems it is vital to have an accurate knowledge of the x-ray ionization vs. mass-depth (ϕ(ρz)) curves as a function of accelerating voltage and atomic number of films and substrate. Once this knowledge is available the way is open to the analysis of thin films in which both the thicknesses as well as the compositions can usually be determined simultaneously.Our bulk matrix correction “PROZA” with its proven excellent performance for a wide variety of applications (e.g., ultra-light element analysis, extremes in accelerating voltage) has been used as the basis for the development of the software package discussed here. The PROZA program is based on our own modifications of the surface-centred Gaussian ϕ(ρz) model, originally introduced by Packwood and Brown. For its extension towards thin film applications it is required to know how the 4 Gaussian parameters α, β, γ and ϕ(o) for each element in each of the films are affected by the film thickness and the presence of other layers and the substrate.

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