Thermoelectric Properties and Magnetic Anisotropies of Magnetically Grain-Oriented Sr- or Bi-doped Ca3Co4O9 Thick Films

2007 ◽  
Vol 1044 ◽  
Author(s):  
Shigeru Horii ◽  
Yuhya Yamasaki ◽  
Masayuki Sakurai ◽  
Ryoji Funahashi ◽  
Tetsuo Uchikoshi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Anisotropy ◽  
Thermoelectric Properties ◽  
Thick Films ◽  
Thermoelectric Module ◽  
Milling Process ◽  
Type Layer ◽  
Doping Effects ◽  
Bi Doping ◽  
Average Size

AbstractWe report magnetic properties of [Ca2CoO3-δ]0.62CoO2 (Ca349) powders with various average size and the Bi- and Sr-doping effects on thermoelectric properties for the magnetically grain-aligned and densified Ca349 thick films. Magnetic anisotropy at 300 K depended on the initial average size of Ca349 powders and decreased with the decrease in the size. This presumably suggests that distortion of crystal structure was induced by a ball-milling process and led to the change of magnetic anisotropy. On the Bi- and Sr-doping effects, an obvious enhancement of thermoelectric properties did not emerge in the case of the Sr-doping, whereas the enhancement was observed for the Bi-doped Ca349 thick films. However, a drastic decrease of magnetic anisotropy was caused by the Bi-doping. For usage of the p-type layer in multilayered thermoelectric module, tuning of the Bi-doping levels in which both enhancement of thermoelectric properties and a certain level of magnetic anisotropy are achieved is required.

scholarly journals Microstructure and Thermoelectric Properties of (Bi0.48Sb1.52)Te3 Thick Films Prepared with Tape Casting Method

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 140
Author(s):  
Lichen Liu ◽  
Ziping Cao ◽  
Min Chen ◽  
Jun Jiang
Keyword(s):  
Thermoelectric Properties ◽  
Low Cost ◽  
Thick Films ◽  
Tape Casting ◽  
Casting Process ◽  
Casting Method ◽  
Glass Substrates ◽  
Conductive Films ◽  
Casting Technology

This paper reports the fabrication and characterization of (Bi0.48Sb1.52)Te3 thick films using a tape casting process on glass substrates. A slurry of thermoelectric (Bi0.48Sb1.52)Te3 was developed and cured thick films were annealed in a vacuum chamber at 500–600 °C. The microstructure of these films was analyzed, and the Seebeck coefficient and electric conductivity were tested. It was found that the subsequent annealing process must be carefully designed to achieve good thermoelectric properties of these samples. Conductive films were obtained after annealing and led to acceptable thermoelectric performance. While the properties of these initial materials are not at the level of bulk materials, this work demonstrates that the low-cost tape casting technology is promising for fabricating thermoelectric modules for energy conversion.

Role of Bi doping in thermoelectric properties of CaMnO3

2015 ◽  
Vol 628 ◽  
pp. 347-351 ◽  
Author(s):  
Rezaul Kabir ◽  
Ruoming Tian ◽  
Tianshu Zhang ◽  
Richard Donelson ◽  
Thiam Teck Tan ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Bi Doping

Enhanced thermoelectric properties of Ge 2 Sb 2 Te 5 thin films through the control of crystal structure

2017 ◽  
Vol 17 (5) ◽  
pp. 744-750 ◽  
Author(s):  
So-Hyun Kang ◽  
Venkatraju Jella ◽  
S.V.N. Pammi ◽  
Ji-Ho Eom ◽  
Jin-Seok Choi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Thin Films ◽  
Thermoelectric Properties

scholarly journals Thermodynamic, Structural and Thermoelectric Properties of AgSbTe2 Thick Films Developed by Melt Spinning

Nanomaterials ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 474 ◽  
Author(s):  
Baoli Du ◽  
Ming Liu ◽  
Jian Xu ◽  
Baofu Hu ◽  
Bingguo Liu ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Melt Spinning ◽  
Thick Films

Improvement in thermoelectric properties of CaMnO 3 by Bi doping and hot pressing

2017 ◽  
Vol 4 (5) ◽  
pp. 6289-6295 ◽  
Author(s):  
Supasit Paengson ◽  
Panida Pilasuta ◽  
Kunchit Singsoog ◽  
Wanatchaporn Namhongsa ◽  
Wairut Impho ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Hot Pressing ◽  
Bi Doping

Synthesis, crystal structure and thermoelectric properties of a new metal telluride Ba3Ag3InTe6

2017 ◽  
Vol 4 (9) ◽  
pp. 1458-1464 ◽  
Author(s):  
M.-Y. Lee ◽  
D. I. Bilc ◽  
E. Symeou ◽  
Y.-C. Lin ◽  
I.-C. Liang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Transport Properties ◽  
Valence Band ◽  
Thermoelectric Properties ◽  
Type Semiconductor ◽  
P Type

A new p-type semiconductor Ba3Ag3InTe6 with transport properties dominated by the layer [Ag3Te4]5− distributed in the valence band.

scholarly journals Crystal structure and thermoelectric properties of chimney–ladder compounds in the Ru2Si3–Mn4Si7 pseudobinary system

2009 ◽  
Vol 57 (17) ◽  
pp. 5036-5045 ◽  
Author(s):  
Norihiko L. Okamoto ◽  
Tatsuya Koyama ◽  
Kyosuke Kishida ◽  
Katsushi Tanaka ◽  
Haruyuki Inui
Keyword(s):  
Crystal Structure ◽  
Thermoelectric Properties ◽  
Pseudobinary System

Pr- and La-doping effects on the magnetic anisotropy in the antiferromagnetic phase of Kondo semiconductorCeRu2Al10

2015 ◽  
Vol 91 (23) ◽  
Author(s):  
K. Yoshida ◽  
R. Okubo ◽  
H. Tanida ◽  
T. Matsumura ◽  
M. Sera ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Antiferromagnetic Phase ◽  
La Doping ◽  
Doping Effects

DFT study on the crystal structure, optoelectronic, and thermoelectric properties of lead-free inorganic A2PdBr6 (A = K, Rb, and Cs) perovskites

2021 ◽  
pp. 103061
Author(s):  
Mohammed Alaa Bousahla ◽  
Muhammad Faizan ◽  
Taieb Seddik ◽  
Saad Bin Omran ◽  
Houari Khachai ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Thermoelectric Properties ◽  
Lead Free ◽  
Dft Study
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