scholarly journals Non-equilibrium synthesis and characterization of n-type Bi2Te2.7Se0.3 thermoelectric material prepared by rapid laser melting and solidification

RSC Advances ◽  
2017 ◽  
Vol 7 (35) ◽  
pp. 21439-21445 ◽  
Author(s):  
Yu Mao ◽  
Yonggao Yan ◽  
Keping Wu ◽  
Hongyao Xie ◽  
Zekun Xiu ◽  
...  
Keyword(s):  
3D Printing ◽  
Thermoelectric Properties ◽  
Thermoelectric Material ◽  
Synthesis And Characterization ◽  
Laser Melting ◽  
Melting And Solidification ◽  
Non Equilibrium

N-type Bi2Te2.7Se0.3 material fabricated by non-equilibrium laser 3D printing exhibits comparable thermoelectric properties to that of the commercially available material.

Synthesis and characterization of Mg2Si/Si nanocomposites prepared from MgH2 and silicon, and their thermoelectric properties

2012 ◽  
Vol 22 (47) ◽  
pp. 24805 ◽  
Author(s):  
Tanghong Yi ◽  
Shaoping Chen ◽  
Shawn Li ◽  
Hao Yang ◽  
Sabah Bux ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Synthesis And Characterization

Synthesis and Characterization of Polythiophene/Bi2Te3 Nanocomposite Thermoelectric Material

2011 ◽  
Vol 40 (9) ◽  
pp. 2027-2032 ◽  
Author(s):  
W. Q. Ao ◽  
L. Wang ◽  
J. Q. Li ◽  
Fred Pan ◽  
C. N. Wu
Keyword(s):  
Thermoelectric Material ◽  
Synthesis And Characterization

Non-Equilibrium Two-Dimensional Model of Excimer-Laser Melting and Solidification of Thin Si Films on SiO2

1995 ◽  
Vol 397 ◽  
Author(s):  
Vikas V. Gupta ◽  
H. Jin Song ◽  
James S. Im
Keyword(s):  
Excimer Laser ◽  
Oxide Surface ◽  
Solidification Velocity ◽  
Lateral Growth ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Laser Melting ◽  
Growth Phenomenon ◽  
Melting And Solidification ◽  
Non Equilibrium

ABSTRACTWe have developed a two-dimensional numerical model of excimer-laser melting and solidification that properly takes into account the non-equilibrium and transient nature of the process. The model incorporates a novel explicit finite difference scheme for efficiently solving the heat conduction equation and an algorithm that incorporates the interface response function for properly simulating the evolution of phase domains. The model provides space- and time-resolved information regarding the thermal profile and phase domains from which nearly all of the important solidification details can be extracted (e.g., interface location, solidification velocity, interfacial undercooling, etc.). For the simple partial-melting-and-vertical-regrowth scenario, results from the model converge with the results from the well-established one-dimensional model. As a result of its two-dimensional and non-equilibrium formulation, which also respects the amorphous and inert nature of the underlying oxide surface, the model is unique in its capability for properly simulating those solidification scenarios that involve extensive lateral growth of solids, as for example those behind the super-lateral growth phenomenon and various artificially controlled super-lateral growth processes.

Investigations Of Solid Solutions Of CsBi4Te6

2000 ◽  
Vol 626 ◽  
Author(s):  
Duck-Young Chung ◽  
Tim P. Hogan ◽  
Nishant Ghelani ◽  
Paul W. Brazis ◽  
Melissa A. Lane ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Solid Solutions ◽  
Synthesis And Characterization ◽  
Structural Investigations ◽  
X Ray ◽  
As Doping

ABSTRACTResults on the synthesis and characterization of the solid solutions CsBi4-xSbxTe6, CsBi4Te6-ySey, as well as doping experiments on CsBi4Te6 are reported. We report X-ray structural investigations showing that the Sb or Se atoms in these compounds are not uniformly distributed in the lattice but show preferential occupation of specific crystallographic sites. Thermoelectric properties of selected systems are presented.

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