High efficiency Bi2Te3-based materials and devices for thermoelectric power generation between 100 and 300 °C

2016 ◽  
Vol 9 (10) ◽  
pp. 3120-3127 ◽  
Author(s):  
Feng Hao ◽  
Pengfei Qiu ◽  
Yunshan Tang ◽  
Shengqiang Bai ◽  
Tong Xing ◽  
...  
Keyword(s):  
Power Generation ◽  
Temperature Gradient ◽  
Energy Conversion ◽  
Thermoelectric Power ◽  
Thermoelectric Materials ◽  
High Efficiency ◽  
Thermoelectric Power Generation ◽  
Conversion Efficiencies

High efficiency Bi2Te3-based thermoelectric materials and devices with energy conversion efficiencies of up to 6.0% under a temperature gradient of 217 K.

Metal-like electrical conductivity in LaxSr2−xTiMoO6 oxides for high temperature thermoelectric power generation

2017 ◽  
Vol 46 (18) ◽  
pp. 5872-5879 ◽  
Author(s):  
Mandvi Saxena ◽  
Tanmoy Maiti
Keyword(s):  
Power Generation ◽  
Electrical Conductivity ◽  
High Temperature ◽  
Energy Conversion ◽  
Thermoelectric Power ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Power Generators ◽  
Thermoelectric Power Generation

Increasing electrical conductivity in oxides, which are inherently insulators, can be a potential route in developing oxide-based thermoelectric power generators with higher energy conversion efficiency.

High efficiency GeTe-based materials and modules for thermoelectric power generation

2021 ◽  
Author(s):  
Tong Xing ◽  
Qingfeng Song ◽  
Pengfei Qiu ◽  
Qihao Zhang ◽  
Ming Gu ◽  
...  
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
High Efficiency ◽  
Waste Heat ◽  
Thermoelectric Performance ◽  
Thermoelectric Generators ◽  
Thermoelectric Power Generation

GeTe-based materials have a great potential to be used in thermoelectric generators for waste heat recovery due to their excellent thermoelectric performance, but their module research is greatly lagging behind...

Improved Reversibility of Liquid Lithium-Ammonia Solutions in Vacuum Tube

2014 ◽  
Vol 605 ◽  
pp. 306-309
Author(s):  
Miae Kim ◽  
Ji Beom Kim ◽  
Joon Hyeon Jeon
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Liquid Lithium ◽  
Thermoelectric Power Generation ◽  
Thermoelectric Conversion ◽  
Pressure Equilibrium ◽  
Long Time ◽  
Solution Reaction

Lithium-ammonia (Li-NH3) solutions are possible to be successfully made under the vacuum condition but there still remains a problem of undergoing stable and reliable decomposition in vacuum for high-efficiency thermoelectric power generation. This paper describes a new method, which uses a tube giving pressure equilibrium between closed ends, for improving the thermoelectric conversion efficiency of Li-NH3solutions in vacuum. Thermoelectric experimental results show that solution reaction in the tube proceeds stably and efficiently, and this potentially leads to the improved reversibility of the reaction for deriving the long-time, high-efficiency thermoelectric power.

scholarly journals Observation and Characterization of the Thermoelectric Power Generation

2017 ◽  
Vol 8 (1) ◽  
pp. 94
Author(s):  
A. J. Jin ◽  
Q. Li ◽  
D. Liu ◽  
C. An ◽  
Y. Zhang
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Alternative Energy ◽  
Response Curve ◽  
High Efficiency ◽  
Total Output ◽  
Large Power ◽  
Thermoelectric Power Generation ◽  
New Findings

Authors report methodical studies on some novel, alternative energy technologies, and produced results of a thermoelectric power generation (TEPG) system. For the sake of evaluating critical thermoelectric (TE) features, they have invented the state-of-the-art equipment that has important specification capability. The studies cover the efficiency and many aspects of TEPG features as follows. A thermoelectric module is measured in situ that includes TE efficiency, force response curve, current-voltage (I-V) and power-voltage (P-V) characterization, and power temperature (P-T) response curve. They have improved both the higher total output power and the more efficient TEPG efficiency than their comparison TE devices and systems in their studies. In addition, authors will present a series of design, construction, and characterization of a thermal electric generation system which aims to achieve a large power output and high efficiency for the energy harvesting application. Furthermore, their studies lead to important knowledge of TEPG systems in terms of multi-stack modules and of the optimization in TEPG applications. Finally, the prototypes are built for both the tabletop and other applications with new findings. Several sets of prototype TEPG are developed for experimental investigation and data analysis, followed by the summary and conclusions based on the data.

scholarly journals Thermoelectric power generation: from new materials to devices

2019 ◽  
Vol 377 (2152) ◽  
pp. 20180450 ◽  
Author(s):  
Gangjian Tan ◽  
Michihiro Ohta ◽  
Mercouri G. Kanatzidis
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Thermoelectric Materials ◽  
Direct Conversion ◽  
Low Carbon ◽  
Energy Materials ◽  
Thermoelectric Power Generation ◽  
Power Generation Technology ◽  
Key Issues ◽  
Generation Technology

Thermoelectric technology offers the opportunity of direct conversion between heat and electricity, and new and exciting materials that can enable this technology to deliver higher efficiencies have been developed in recent years. This mini-review covers the most promising advances in thermoelectric materials as they pertain to their potential in being implemented in devices and modules with an emphasis on thermoelectric power generation. Classified into three groups in terms of their operating temperature, the thermoelectric materials that are most likely to be used in future devices are briefly discussed. We summarize the state-of-the-art thermoelectric modules/devices, among which nanostructured PbTe modules are particularly highlighted. At the end, key issues and the possible strategies that can help thermoelectric power generation technology move forward are considered. This article is part of a discussion meeting issue ‘Energy materials for a low carbon future’.

Energy-specific equilibrium in nanowires for efficient thermoelectric power generation

2005 ◽  
Vol 886 ◽  
Author(s):  
Heiner Linke ◽  
Tammy Humphrey ◽  
Mark O'Dwyer
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Room Temperature ◽  
High Efficiency ◽  
Power Conversion ◽  
Electric Energy ◽  
Recent Theory ◽  
Electronic Density ◽  
Thermoelectric Power Generation ◽  
Efficient Power

ABSTRACTThere is great scientific, economic and environmental interest in the development of thermoelectric materials capable of direct thermal-to-electric energy conversion with high efficiency. Recent theory predicts that in materials with a fine-tuned electronic density of states, electrons can be placed in energy-specific equilibrium, and the efficiency of thermoelectric power generation can approach the fundamental Carnot limit. Here we review the relevant theory of energy-specific equilibrium. We describe a concept for a proof-of principle demonstration of near-Carnot efficient power conversion involving a single, ballistic nanowire at low temperatures, and we discuss the potential for room-temperature applications in diffusive materials.

High‐Efficiency Thermoelectric Power Generation Enabled by Homogeneous Incorporation of MXene in (Bi,Sb) 2 Te 3 Matrix

2019 ◽  
Vol 10 (2) ◽  
pp. 1902986 ◽  
Author(s):  
Xiaofang Lu ◽  
Qihao Zhang ◽  
Jincheng Liao ◽  
Hongyi Chen ◽  
Yuchi Fan ◽  
...  
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
High Efficiency ◽  
Thermoelectric Power Generation

Flexible thermoelectrics: from silver chalcogenides to full-inorganic devices

2019 ◽  
Vol 12 (10) ◽  
pp. 2983-2990 ◽  
Author(s):  
Jiasheng Liang ◽  
Tuo Wang ◽  
Pengfei Qiu ◽  
Shiqi Yang ◽  
Chen Ming ◽  
...  
Keyword(s):  
Power Generation ◽  
Energy Conversion ◽  
Thermoelectric Power ◽  
Flexible Electronics ◽  
Thermoelectric Power Generation ◽  
Thermoelectric Energy Conversion ◽  
Thermoelectric Energy ◽  
Silver Chalcogenides

Flexible thermoelectrics is a synergy of flexible electronics and thermoelectric energy conversion. In this work, we fabricated flexible full-inorganic thermoelectric power generation modules based on doped silver chalcogenides.

scholarly journals Review of Development Status of Bi2Te3-Based Semiconductor Thermoelectric Power Generation

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Yan Chen ◽  
Xiangnan Hou ◽  
Chunyan Ma ◽  
Yinke Dou ◽  
Wentao Wu
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Thermoelectric Materials ◽  
Electrical Energy ◽  
Basic Principles ◽  
Environment Friendly ◽  
Thermoelectric Power Generation ◽  
Research Status ◽  
Power Generation Technology ◽  
New Type

Semiconductor thermoelectric power generation is a new type of energy-saving and environment-friendly power generation technology, which directly converts heat energy into electrical energy by using the characteristics of semiconductor thermoelectric materials and has broad application prospects. This paper introduces the basic principles of thermoelectric materials and semiconductor thermoelectric power generation. The research status and progress of Bi2Te3-based semiconductor materials and thermoelectric generators in recent years are also introduced, respectively. Then, the paper emphasizes the research status of low temperature difference semiconductor power generation and points out the future development directions.

Fabrication And Characterization of Thermoelectric Generators From SiGe Thin Films

2008 ◽  
Vol 1102 ◽  
Author(s):  
S. Budak ◽  
S. Guner ◽  
T. Hill ◽  
M. Black ◽  
S. B. Judah ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Power Generation ◽  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Thermoelectric Power ◽  
Thermoelectric Materials ◽  
Thermoelectric Generator ◽  
Ion Beam ◽  
Thermoelectric Power Generation ◽  
The Cross

AbstractThermoelectric materials are being important due to their application in both thermoelectric power generation and microelectronic cooling. The thermoelectric power generations convert the heat change to electricity. The waste of heat could be useful if the thermoelectric power generation is applied. Effective thermoelectric materials have a low thermal conductivity and a high electrical conductivity. A high thermal conductivity causes too much heat leakage through heat conduction. The performance of the thermoelectric materials and devices is shown by a dimensionless figure of merit, ZT = S2σT/K, where S is the Seebeck coefficient, σ is the electrical conductivity, T is the absolute temperature and K is the thermal conductivity. ZT can be increased by increasing S, increasing σ, or decreasing K. In this study, we prepared thermoelectric generator devices of SiGe at the thickness of 112 nm using the ion beam assisted deposition (IBAD) system. Rutherford Backscattering Spectrometry (RBS) analysis was used for the elemental analysis. The 5 MeV Si ion bombardment was performed using the AAMU Pelletron ion beam accelerator to make quantum clusters in the film to decrease the cross plane thermal conductivity, increase the cross plane Seebeck coefficient and electrical conductivity. To characterize the thermoelectric generator devices before and after Si ion bombardment we measured the cross plane Seebeck coefficient, electrical conductivity by Van der Pauw method, and thermal conductivity by 3w method for different fluences.

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