Optimized orientation and enhanced thermoelectric performance in Sn0.97Na0.03Se with Te addition

2019 ◽  
Vol 7 (9) ◽  
pp. 2653-2658 ◽  
Author(s):  
Jiahua Zhang ◽  
Jingtao Xu ◽  
Xiaojian Tan ◽  
Hongxiang Wang ◽  
Guo-Qiang Liu ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Electrical Properties ◽  
Thermoelectric Materials ◽  
Thermoelectric Performance ◽  
Compaction Method

An unconventional liquid-phase compaction method was used to prepare Sn0.97Na0.03Se thermoelectric materials, leading to high oritentation with excellent electrical properties.

scholarly journals Metal phosphides as potential thermoelectric materials

2017 ◽  
Vol 5 (47) ◽  
pp. 12441-12456 ◽  
Author(s):  
Jan-Hendrik Pöhls ◽  
Alireza Faghaninia ◽  
Guido Petretto ◽  
Umut Aydemir ◽  
Francesco Ricci ◽  
...  
Keyword(s):  
Thermoelectric Materials ◽  
Thermoelectric Performance ◽  
Band Structures ◽  
Electronic Band ◽  
Metal Phosphides ◽  
Electronic Band Structures ◽  
Thermal Conductivities

Metal phosphides are predicted to have high thermoelectric performance due to enhanced electronic band structures and low thermal conductivities.

Designing high-performance n-type Mg3Sb2-based thermoelectric materials through forming solid solutions and biaxial strain

2018 ◽  
Vol 6 (41) ◽  
pp. 20454-20462 ◽  
Author(s):  
Juan Li ◽  
Shuai Zhang ◽  
Boyi Wang ◽  
Shichao Liu ◽  
Luo Yue ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Thermoelectric Materials ◽  
High Performance ◽  
Thermoelectric Performance ◽  
Biaxial Strain

Thermoelectric performance can be largely enhanced by forming solid solutions and biaxial strain.

Nanostructure controlled construction of high-performance thermoelectric materials of polymers and their composites

2018 ◽  
Vol 6 (45) ◽  
pp. 22381-22390 ◽  
Author(s):  
Yufeng Xue ◽  
Chunmei Gao ◽  
Lirong Liang ◽  
Xin Wang ◽  
Guangming Chen
Keyword(s):  
Thermoelectric Materials ◽  
High Performance ◽  
Thermoelectric Performance ◽  
Recent Advances

This review discusses recent advances in controlled fabrication of nanostructures and the enhanced thermoelectric performance of polymers and their composites.

Doping characteristics and electrical properties of Be-doped p-type AlxGa1−xAs by liquid phase epitaxy

1980 ◽  
Vol 51 (10) ◽  
pp. 5438 ◽  
Author(s):  
Shigeo Fujita ◽  
S.M. Bedair ◽  
M.A. Littlejohn ◽  
J.R. Hauser
Keyword(s):  
Liquid Phase ◽  
Electrical Properties ◽  
Liquid Phase Epitaxy ◽  
P Type

Thermoelectric Performance of Glass Microsphere Dispersed Bi-Sb Composites at Low Temperature

2013 ◽  
Vol 743-744 ◽  
pp. 120-125
Author(s):  
Zhen Chen ◽  
Ye Mao Han ◽  
Min Zhou ◽  
Rong Jin Huang ◽  
Yuan Zhou ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Thermoelectric Materials ◽  
Sem Analysis ◽  
Glass Microsphere ◽  
Thermoelectric Performance ◽  
X Ray Diffraction ◽  
X Ray ◽  
Measurement Results

In the present study, the glass microsphere dispersed Bi-Sb thermoelectric materials have been fabricated through mechanical alloying followed by pressureless sintering. The phase composition and the microstructure were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis. Electrical conductivity, Seebeck coefficient and thermal conductivity were measured in the temperature range of 77~300 K. The ZT values were calculated according to the measurement results. The results showed that the electrical conductivity, Seebeck coefficient and thermal conductivity decreased by adding glass microsphere into Bi-Sb thermoelectric materials. However, the optimum ZT value of 0.24 was obtained at 260 K, which was increased 10% than that of the Bi-Sb matrix. So it is confirmed that the thermoelectric performance of Bi-Sb-based materials can be improved by adding moderate glass microspheres.

High thermoelectric performance in low-cost SnS0.91Se0.09 crystals

Science ◽  
2019 ◽  
Vol 365 (6460) ◽  
pp. 1418-1424 ◽  
Author(s):  
Wenke He ◽  
Dongyang Wang ◽  
Haijun Wu ◽  
Yu Xiao ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Thermoelectric Materials ◽  
High Performance ◽  
Carrier Mobility ◽  
Figure Of Merit ◽  
Toxic Elements ◽  
Low Cost ◽  
Thermoelectric Performance ◽  
Tin Sulfide ◽  
Temperature Dependent ◽  
Earth Abundant

Thermoelectric technology allows conversion between heat and electricity. Many good thermoelectric materials contain rare or toxic elements, so developing low-cost and high-performance thermoelectric materials is warranted. Here, we report the temperature-dependent interplay of three separate electronic bands in hole-doped tin sulfide (SnS) crystals. This behavior leads to synergistic optimization between effective mass (m*) and carrier mobility (μ) and can be boosted through introducing selenium (Se). This enhanced the power factor from ~30 to ~53 microwatts per centimeter per square kelvin (μW cm−1 K−2 at 300 K), while lowering the thermal conductivity after Se alloying. As a result, we obtained a maximum figure of merit ZT (ZTmax) of ~1.6 at 873 K and an average ZT (ZTave) of ~1.25 at 300 to 873 K in SnS0.91Se0.09 crystals. Our strategy for band manipulation offers a different route for optimizing thermoelectric performance. The high-performance SnS crystals represent an important step toward low-cost, Earth-abundant, and environmentally friendly thermoelectrics.

scholarly journals Thermoelectric Materials: High Thermoelectric Performance in n‐Type Perylene Bisimide Induced by the Soret Effect (Adv. Mater. 45/2020)

2020 ◽  
Vol 32 (45) ◽  
pp. 2070335
Author(s):  
Qinglin Jiang ◽  
Hengda Sun ◽  
Duokai Zhao ◽  
Fengling Zhang ◽  
Dehua Hu ◽  
...  
Keyword(s):  
Thermoelectric Materials ◽  
Soret Effect ◽  
Thermoelectric Performance ◽  
Perylene Bisimide
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