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...

Highly efficient functional GexPb1−xTe based thermoelectric alloys

2014 ◽  
Vol 16 (37) ◽  
pp. 20120-20126 ◽  
Author(s):  
Yaniv Gelbstein ◽  
Joseph Davidow
Keyword(s):  
Energy Conversion ◽  
Fuel Consumption ◽  
Conversion Efficiency ◽  
Thermoelectric Materials ◽  
Waste Heat ◽  
Electrical Power ◽  
Electrical Energy ◽  
Energy Conversion Efficiency ◽  
Efficient Implementation ◽  
Thermoelectric Devices

Methods for enhancement of the direct thermal to electrical energy conversion efficiency, upon development of advanced thermoelectric materials, are constantly investigated mainly for an efficient implementation of thermoelectric devices in automotive vehicles, for utilizing the waste heat generated in such engines into useful electrical power and thereby reduction of the fuel consumption and CO2 emission levels.

Ternary Copper-Based Diamond-Like Semiconductors for Thermoelectric Applications

2009 ◽  
Vol 1166 ◽  
Author(s):  
Donald T Morelli ◽  
Eric J. Skoug
Keyword(s):  
Thermoelectric Materials ◽  
Waste Heat Recovery ◽  
High Efficiency ◽  
Waste Heat ◽  
Low Cost ◽  
Electrical Energy ◽  
Clean Energy ◽  
Direct Conversion ◽  
Thermoelectric Device ◽  
Climate Control

AbstractThermoelectric materials can provide sources of clean energy and increase the efficiency of existing processes. Solar energy, waste heat recovery, and climate control are examples of applications that could benefit from the direct conversion between thermal and electrical energy provided by a thermoelectric device. The widespread use of thermoelectric devices has been prevented by their lack of efficiency, and thus the search for high-efficiency thermoelectric materials is ongoing. Here we describe our initial efforts studying copper-containing ternary compounds for use as high-efficiency thermoelectric materials that could provide low-cost alternatives to their silver-containing counterparts. The compounds of interest are semiconductors that crystallize in structures that are variants of binary zincblende structure compounds. Two examples are the compounds Cu2SnSe3 and Cu3SbSe4, for which we present here preliminary thermoelectric characterization data.

Penta-PdX2 (X = S, Se, Te) monolayers: promising anisotropic thermoelectric materials

2019 ◽  
Vol 7 (18) ◽  
pp. 11134-11142 ◽  
Author(s):  
Yang-Shun Lan ◽  
Xiang-Rong Chen ◽  
Cui-E Hu ◽  
Yan Cheng ◽  
Qi-Feng Chen
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Thermoelectric Materials ◽  
Waste Heat ◽  
Electrical Energy ◽  
Gas Emissions

Thermoelectric materials can be used to convert waste heat into electrical energy, which is considered to be a cleaner form of energy that reduces carbon dioxide and greenhouse gas emissions.

scholarly journals Effects of Y, GdCu, and Al Addition on the Thermoelectric Behavior of CoCrFeNi High Entropy Alloys

Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 781 ◽  
Author(s):  
Wanqing Dong ◽  
Zheng Zhou ◽  
Lijun Zhang ◽  
Mengdi Zhang ◽  
Peter Liaw ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Alternative Energy ◽  
Phonon Scattering ◽  
Waste Heat ◽  
Second Phase ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Alternative Energy Sources ◽  
The Future

Thermoelectric (TE) materials can interconvert waste heat into electricity, which will become alternative energy sources in the future. The high-entropy alloys (HEAs) as a new class of materials are well-known for some excellent properties, such as high friction toughness, excellent fatigue resistance, and corrosion resistance. Here, we present a series of HEAs to be potential candidates for the thermoelectric materials. The thermoelectric properties of YxCoCrFeNi, GdxCoCrFeNiCu, and annealed Al0.3CoCrFeNi were investigated. The effects of grain size and formation of the second phase on thermoelectric properties were revealed. In HEAs, we can reduce the thermal conductivity by controlling the phonon scattering due to the considerable complexity of the alloys. The Y, Gd-doped HEAs are competitive candidate thermoelectric materials for energy conversion in the future.

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