scholarly journals Simultaneously optimizing the interdependent thermoelectric parameters inCe(Ni1−xCux)2Al3

2009 ◽  
Vol 80 (19) ◽  
Author(s):  
Peijie Sun ◽  
Tsuyoshi Ikeno ◽  
Toshio Mizushima ◽  
Yosikazu Isikawa
Keyword(s):  
Thermoelectric Parameters

scholarly journals Application of ZnO Nanoparticles in Sn99Ag0.3 Cu0.7-Based Composite Solder Alloys

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1545
Author(s):  
Agata Skwarek ◽  
Olivér Krammer ◽  
Tamás Hurtony ◽  
Przemysław Ptak ◽  
Krzysztof Górecki ◽  
...  
Keyword(s):  
Solder Alloy ◽  
Zno Nanoparticles ◽  
Composite Solder ◽  
Void Formation ◽  
Particle Sizes ◽  
Solder Paste ◽  
Solder Alloys ◽  
Ion Microscopy ◽  
Zno Ceramics ◽  
Thermoelectric Parameters

The properties of Sn99Ag0.3Cu0.7 (SACX0307) solder alloy reinforced with ZnO nanoparticles were investigated. The primary ZnO particle sizes were 50, 100, and 200 nm. They were added to a solder paste at a ratio of 1.0 wt %. The wettability, the void formation, the mechanical strength, and the thermoelectric parameters of the composite solder alloys/joints were investigated. Furthermore, microstructural evaluations were performed using scanning electron and ion microscopy. ZnO nanoparticles decreased the composite solder alloys’ wettability, which yielded increased void formation. Nonetheless, the shear strength and the thermoelectric parameters of the composite solder alloy were the same as those of the SACX0307 reference. This could be explained by the refinement effects of ZnO ceramics both on the Sn grains and on the Ag3Sn and Cu6Sn5 intermetallic grains. This could compensate for the adverse impact of lower wettability. After improving the wettability, using more active fluxes, ZnO composite solder alloys are promising for high-power applications.

Rationally optimized carrier effective mass and carrier density lead to high average ZT value in n-type PbSe

2021 ◽  
Author(s):  
Yu Xiao ◽  
Wei Liu ◽  
Yang Zhang ◽  
Dongyang Wang ◽  
Haonan Shi ◽  
...  
Keyword(s):  
Transport Properties ◽  
Effective Mass ◽  
Electrical Transport ◽  
Carrier Density ◽  
Electrical Transport Properties ◽  
Carrier Effective Mass ◽  
Thermoelectric Parameters

Among these intricately coupled thermoelectric parameters, the carrier effective mass (m*) and carrier density (n) are two key parameters to determine the electrical transport properties. To enhance the broad-temperature thermoelectric...

Revisit of Thermoelectric Efficiency and Figure-of-Merit

2014 ◽  
Vol 787 ◽  
pp. 195-197
Author(s):  
Chun Lei Wang ◽  
Yuan Hu Zhu ◽  
Wen Bin Su ◽  
Jian Liu ◽  
Ji Chao Li
Keyword(s):  
Power Generation ◽  
Power Factor ◽  
Power Output ◽  
Figure Of Merit ◽  
Maximum Output Power ◽  
Load Resistance ◽  
Maximum Output ◽  
Thermoelectric Efficiency ◽  
Physical Boundary ◽  
Thermoelectric Parameters

Thermoelectric efficiency power generation represented based on the transportation equations obtained under different physical boundary conditions in the present investigation. The figure-of-merit and power factor derived from optimizing thermoelectric efficiency and maximizing power output. It is interesting to note that the maximum output power reached when the load resistance was the thermoelectric adiabatic resistance, while the optimized thermoelectric efficiency responded the isothermal resistance. The possible approach to characterizing these thermoelectric parameters proposed in the present investigation.

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