Advanced Thermoelectric Materials and Systems for Automotive Applications in the Next Millennium

1997 ◽  
Vol 478 ◽  
Author(s):  
Donald T. Morelli
Keyword(s):  
Environmental Economic ◽  
Physical Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Experimental Results ◽  
Automotive Applications ◽  
New Materials ◽  
Thermoelectric Devices ◽  
Filled Skutterudites ◽  
Fundamental Physical

AbstractA combination of environmental, economic, and technological drivers has led to a reassessment of the potential for using thermoelectric devices in several automotive applications. In order for this technology to achieve its ultimate potential, new materials with enhanced thermoelectric properties are required. Experimental results on the fundamental physical properties of some new thermoelectric materials, including filled skutterudites and 1–1–1 intermetallic semiconductors, are presented.

Exploring Complex Chalcogenides for Thermoelectric Applications

2000 ◽  
Vol 626 ◽  
Author(s):  
Ying C. Wang ◽  
Francis J. DiSalvo
Keyword(s):  
Band Structure ◽  
Physical Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Crystal Symmetry ◽  
Synthesis And Characterization ◽  
Conduction Bands ◽  
Valence Bands ◽  
Binary Compounds

ABSTRACTOur research on ternary / quaternary chalcogenides for thermoelectric applications has lead to the identification of new interesting compounds and better understanding of the chemistry and physical properties of complex chalcogenides. The chemical, geometric, electronic diversity and flexibility has been well demonstrated in BaBiSe3 and Sr4Bi6Se13 type compounds. This presents both a challenge and more opportunity in controlling and optimizing the thermoelectric properties of these complex chalcogenides, compared with elemental and binary compounds. The importance of multivalley band structure in thermoelectric materials is emphasized. Only compounds with high crystal symmetry have the possibility of having a large number of degenerate valleys in the conduction bands or peaks in the valence bands, respectively. However, most of the complex chalcogenides crystallize in low crystal symmetry. An Edisonian method of exploratory synthesis and characterization may be the working approach to find good thermoelectric materials with ZT higher than 4.

Modeling of Biomimetic Robotic Fish Propelled by Passive Tail with Suitable Rigidity

2011 ◽  
Vol 304 ◽  
pp. 186-190
Author(s):  
Qing Song Hu ◽  
Juan Chen ◽  
Hua Zhou
Keyword(s):  
Steady State ◽  
Optimal Design ◽  
Physical Properties ◽  
Robotic Fish ◽  
Experimental Results ◽  
Model Parameters ◽  
Plastic Foil ◽  
Proposed Model ◽  
Biomimetic Robotic Fish ◽  
Fundamental Physical

This paper proposes a physics-based cruising speed model for biomimetic robotic fish propelled by the passive plastic foil actuator. Inspired by biological body and fins, a plastic foil with suitable rigidity and innovative structure are designed to acquire better propelling effect. The model captures the speed based on the analysis of the interaction between the tail and the water which considers the hydrodynamics. Experimental results have shown that the proposed model is able to predict the steady-state cruising speed of the robotic fish under a periodic actuation input. Since most of the model parameters are expressed in terms of fundamental physical properties and geometric dimensions, the model is expected to be beneficial in optimal design of the robotic fish.

Enhancement of thermoelectric properties of Yb-filled skutterudites by an Ni-Induced “core–shell” structure

2015 ◽  
Vol 3 (3) ◽  
pp. 1010-1016 ◽  
Author(s):  
Liangwei Fu ◽  
Junyou Yang ◽  
Jiangying Peng ◽  
Qinghui Jiang ◽  
Ye Xiao ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Shell Structure ◽  
Core Shell ◽  
Shell Microstructure ◽  
Ni Doping ◽  
Filled Skutterudite ◽  
Filled Skutterudites ◽  
Core Shell Structure ◽  
First Time

For the first time, we introduced a “core–shell” microstructure into Yb single-filled skutterudite thermoelectric materials by Ni doping.

High performance thermoelectric materials and devices based on GeTe

2016 ◽  
Vol 4 (32) ◽  
pp. 7520-7536 ◽  
Author(s):  
Suresh Perumal ◽  
Subhajit Roychowdhury ◽  
Kanishka Biswas
Keyword(s):  
Thermal Stability ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
High Performance ◽  
Thermoelectric Devices ◽  
The Past ◽  
Recent Developments ◽  
Thermal Stability Of

This review summarizes the past and recent developments in the thermoelectric properties, nano/microstructure modulations, and mechanical and thermal stability of GeTe based materials and thermoelectric devices based on GeTe.

scholarly journals Thermoelectric Materials: Thermoelectric Properties of Novel Semimetals: A Case Study of YbMnSb 2 (Adv. Mater. 7/2021)

2021 ◽  
Vol 33 (7) ◽  
pp. 2170051
Author(s):  
Yu Pan ◽  
Feng‐Ren Fan ◽  
Xiaochen Hong ◽  
Bin He ◽  
Congcong Le ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Thermoelectric Materials

SnSe, the rising star thermoelectric material: a new paradigm in atomic blocks, building intriguing physical properties

2021 ◽  
Author(s):  
Lin Xie ◽  
Dongsheng He ◽  
Jiaqing He
Keyword(s):  
Physical Properties ◽  
Energy Conversion ◽  
Thermoelectric Material ◽  
Thermoelectric Materials ◽  
Waste Heat ◽  
New Paradigm ◽  
Direct Energy Conversion ◽  
Structures And Properties ◽  
Direct Energy

Thermoelectric materials, which enable direct energy conversion between waste heat and electricity, are witnessing exciting developments due to innovative breakthroughs both in materials and the synergistic optimization of structures and properties.

scholarly journals Structural and physical properties of 99 complex bulk chalcogenides crystals using first-principles calculations

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sahib Hasan ◽  
Khagendra Baral ◽  
Neng Li ◽  
Wai-Yim Ching
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
First Principles ◽  
Experimental Studies ◽  
First Principles Calculations ◽  
Chalcogenide Semiconductors ◽  
Optical And Mechanical Properties ◽  
Very Large Database ◽  
Unique Composition ◽  
Fundamental Physical

AbstractChalcogenide semiconductors and glasses have many applications in the civil and military fields, especially in relation to their electronic, optical and mechanical properties for energy conversion and in enviormental materials. However, they are much less systemically studied and their fundamental physical properties for a large class chalcogenide semiconductors are rather scattered and incomplete. Here, we present a detailed study using well defined first-principles calculations on the electronic structure, interatomic bonding, optical, and mechanical properties for 99 bulk chalcogenides including thirteen of these crytals which have never been calculated. Due to their unique composition and structures, these 99 bulk chalcogenides are divided into two main groups. The first group contains 54 quaternary crystals with the structure composition (A2BCQ4) (A = Ag, Cu; B = Zn, Cd, Hg, Mg, Sr, Ba; C = Si, Ge, Sn; Q = S, Se, Te), while the second group contains scattered ternary and quaternary chalcogenide crystals with a more diverse composition (AxByCzQn) (A = Ag, Cu, Ba, Cs, Li, Tl, K, Lu, Sr; B = Zn, Cd, Hg, Al, Ga, In, P, As, La, Lu, Pb, Cu, Ag; C = Si, Ge, Sn, As, Sb, Bi, Zr, Hf, Ga, In; Q = S, Se, Te; $$\hbox {x} = 1$$ x = 1 , 2, 3; $$\hbox {y} = 0$$ y = 0 , 1, 2, 5; $$\hbox {z} = 0$$ z = 0 , 1, 2 and $$\hbox {n} = 3$$ n = 3 , 4, 5, 6, 9). Moreover, the total bond order density (TBOD) is used as a single quantum mechanical metric to characterize the internal cohesion of these crystals enabling us to correlate them with the calculated properties, especially their mechanical properties. This work provides a very large database for bulk chalcogenides crucial for the future theoretical and experimental studies, opening opportunities for study the properties and potential application of a wide variety of chalcogenides.

Effect of Electron-Phonon Coupling on Transport Properties of Monolayers of ZrS2, BiI3 and PbI2: A thermoelectric Perspective

2021 ◽  
Author(s):  
Gautam Sharma ◽  
Vineet Kumar Pandey ◽  
Shouvik Datta ◽  
Prasenjit Ghosh
Keyword(s):  
Relaxation Time ◽  
Band Structure ◽  
Transport Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Waste Heat ◽  
Transport Coefficients ◽  
Electrical Energy ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

Thermoelectric materials are used for conversion of waste heat to electrical energy. The transport coefficients that determine their thermoelectric properties depend on the band structure and the relaxation time of...

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