scholarly journals Influence of process parameters on the electrical properties of n-type and p-type Bi2Te3-based pseudo-ternary thermoelectric materials by the hot-pressing method

2005 ◽  
Vol 54 (7) ◽  
pp. 3321
Author(s):  
Lü Qiang ◽  
Rong Jian-Ying ◽  
Zhao Lei ◽  
Zhang Hong-Chen ◽  
Hu Jian-Min ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Process Parameters ◽  
Thermoelectric Materials ◽  
Hot Pressing ◽  
Influence Of Process Parameters ◽  
Pressing Method ◽  
P Type

Simple Thermoelectric Module

2008 ◽  
Vol 55-57 ◽  
pp. 813-816
Author(s):  
T. Kumpeerapun ◽  
Hubert Scherrer ◽  
V. Kosalathip ◽  
I. Sripichai
Keyword(s):  
Output Power ◽  
Thermoelectric Materials ◽  
Hot Pressing ◽  
Thermoelectric Module ◽  
Open Circuit ◽  
Time Consumption ◽  
P Type ◽  
Short Time ◽  
Power Densities ◽  
Open Circuit Voltages

The short-time-consumption melting and hot pressing processes were used to synthesize n-type and p-type Bi-Sb-Te thermoelectric materials. The synthesis materials were characterized and used for the module fabrication. The aluminium substrate was used instead of alumina substrate because it is easy to cut and to avoid fragility of the module. The performance of 20 x 20 mm2 prototype thermoelectric module consists of 7 pairs of n-type and p-type Bi-Sb-Te thermoelectric materials was investigated and then compared its performance to 40 mm x 40 mm commercial module. The output power densities as a function of temperature difference across the devices and open circuit voltages from the module are reported.

Thermoelectric Properties on SixGe1-x Containing Fullerite

2007 ◽  
Vol 280-283 ◽  
pp. 409-412 ◽  
Author(s):  
Gui Ying Xu ◽  
Xiao Feng Wu ◽  
Li Li Zhang ◽  
Chang Chun Ge
Keyword(s):  
Quantum Dot ◽  
Thermoelectric Property ◽  
Thermoelectric Properties ◽  
Thermoelectric Material ◽  
Analytical Method ◽  
Hot Pressing ◽  
Thermoelectric Generator ◽  
Pressing Method ◽  
Higher Temperature ◽  
P Type

SixGe1-x (x = 0.75 for n-type and 0.7 for p-type) is a typical thermoelectric material used at higher temperature as thermoelectric generator. Its property is dependent on the composition. SixGe1-x containing different amount of fullerite added as hollow quantum dot were fabricated by hot-pressing method. The relations among thermoelectric property, the amount of fullerite and the microstructure were investigated by normal measurement and analytical method.

Significant Influences of Selenium on the Electrical Properties of Bi2Te3 Compounds Synthesized Using Solid-State Microwave Irradiation

2012 ◽  
Vol 501 ◽  
pp. 126-128 ◽  
Author(s):  
Arej Kadhim ◽  
Arshad Hmood ◽  
Abu Hassan Haslan
Keyword(s):  
Solid State ◽  
Electrical Properties ◽  
Microwave Irradiation ◽  
Seebeck Coefficient ◽  
Thermoelectric Materials ◽  
Microwave Synthesis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Temperature Range ◽  
P Type

The thermoelectric materials based on p-type Bi2Se3xTe3 (1-x) bulk products and dispersed with x compositions of Se (x=0.0, 0.2, 0.4, 0.6, 0.8, 1.0) were fabricated using standard solid-state microwave synthesis procedures. The products were characterized by X-ray diffraction (XRD). The XRD characterizations revealed that these products are pure Bi2Te3 and Bi2Se3 with uniform structures. The electrical properties of the Bi2Te3, Bi2Se3 and Bi2Se3xTe3 (1-x) samples were measured in the temperature range of 303–523 K. The highest value of the Seebeck coefficient was 176.3 μV/ K for the Bi2Se0.6Te2.4 sample, but only 149.5 and 87.4 μV/K for the Bi2Te3 and Bi2Se3 samples, respectively.

Thermoelectric Properties on n-Type BixSb1-x /Bi2Te3 Graded Materials Containing Fullerite or Carbon Tube

2005 ◽  
Vol 475-479 ◽  
pp. 1591-1594
Author(s):  
Xiao Feng Wu ◽  
Gui Ying Xu ◽  
Si-Tong Niu ◽  
Chang Chun Ge
Keyword(s):  
Thermoelectric Property ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Analytical Method ◽  
Hot Pressing ◽  
Graded Materials ◽  
Pressing Method ◽  
Carbon Tube ◽  
Materials Used ◽  
Lower Temperature

BixSb1-x and Bi2Te3 are typical thermoelectric materials used for lower temperature. Samples of Graded materials containing different amount of fullerite or nanometer carbon tube and the were fabricated by hot pressing method. The relations about thermoelectric property, the addition of fullerite or nanometer carbon tube, and the microstructure were investigated in detail by normal measurement or analytical method.

Thermoelectric properties of p-type (Bi,Sb)2Te3 alloys fabricated by the hot pressing method

1998 ◽  
Vol 4 (1) ◽  
pp. 75-81 ◽  
Author(s):  
Hee-Jeong Kim ◽  
Hang-Chong Kim ◽  
Dow-Bin Hyun ◽  
Tae-Sung Oh
Keyword(s):  
Thermoelectric Properties ◽  
Hot Pressing ◽  
Pressing Method ◽  
P Type
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