A new 3-D coordination polymer as a precursor for CuI-based thermoelectric composites

2018 ◽  
Vol 47 (45) ◽  
pp. 16292-16298 ◽  
Author(s):  
Shi-Qiang Bai ◽  
Ivy Hoi Ka Wong ◽  
Nan Zhang ◽  
Karen Lin Ke ◽  
Ming Lin ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Seebeck Coefficient ◽  
Room Temperature ◽  
Low Density ◽  
High Seebeck Coefficient

A room temperature stable CuI-coordination polymer was characterized and pyrolysed to form a low density, thermoelectric composite with a relatively high Seebeck coefficient (∼1308 μV K−1) below 100 °C.

A thermoelectric copper-iodide composite from the pyrolysis of a well-defined coordination polymer

2018 ◽  
Vol 47 (16) ◽  
pp. 5564-5569 ◽  
Author(s):  
Shi-Qiang Bai ◽  
Ivy Hoi Ka Wong ◽  
Ming Lin ◽  
David James Young ◽  
T. S. Andy Hor
Keyword(s):  
Coordination Polymer ◽  
Seebeck Coefficient ◽  
Room Temperature ◽  
Carbon Composite ◽  
Copper Iodide ◽  
Molecular Material ◽  
Organic Hybrid ◽  
High Seebeck Coefficient

A robust and relatively light CuI-rich carbon composite derived from an inorganic–organic hybrid molecular material demonstrates a high Seebeck coefficient from room temperature to 204 °C.

Thermoelectric Properties of Semiconducting Intermetallic Compounds: FeGa3and RuGa3

2003 ◽  
Vol 793 ◽  
Author(s):  
Y. Amagai ◽  
A. Yamamoto ◽  
C. H. Lee ◽  
H. Takazawa ◽  
T. Noguchi ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Electrical Resistivity ◽  
High Temperature ◽  
Seebeck Coefficient ◽  
Transport Properties ◽  
Figure Of Merit ◽  
Room Temperature ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
High Seebeck Coefficient

ABSTRACTWe report transport properties of polycrystalline TMGa3(TM = Fe and Ru) compounds in the temperature range 313K<T<973K. These compounds exhibit semiconductorlike behavior with relatively high Seebeck coefficient, electrical resistivity, and Hall carrier concentrations at room temperature in the range of 1017- 1018cm−3. Seebeck coefficient measurements reveal that FeGa3isn-type material, while the Seebeck coefficient of RuGa3changes signs rapidly from large positive values to large negative values around 450K. The thermal conductivity of these compounds is estimated to be 3.5Wm−1K−1at room temperature and decreased to 2.5Wm−1K−1for FeGa3and 2.0Wm−1K−1for RuGa3at high temperature. The resulting thermoelectric figure of merit,ZT, at 945K for RuGa3reaches 0.18.

scholarly journals Effect of SrTiO3 Nanoparticles in Conductive Polymer on the Thermoelectric Performance for Efficient Thermoelectrics

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 777 ◽  
Author(s):  
Dabin Park ◽  
Hyun Ju ◽  
Jooheon Kim
Keyword(s):  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Room Temperature ◽  
Conductive Polymer ◽  
Inorganic Materials ◽  
Thermoelectric Performance ◽  
One Pot ◽  
High Seebeck Coefficient ◽  
Solvothermal Methods ◽  
Pani Matrix

We present hybrid organic inorganic materials, namely, SrTiO3/polyaniline (PANI) composites, with high thermoelectric performance; samples with various SrTiO3 contents (10, 20, 30, and 50 wt.%) were prepared. The PANI component was obtained through the polymerization of aniline monomers, followed by camphosulfonic acid-doping to enhance its electrical conductivity. SrTiO3, with a high Seebeck coefficient, was used as the N-type inorganic componenet; it was synthesized via a one-pot solvothermal methods and, then, dispersed into the conductive PANI matrix. The SrTiO3 content influenced the Seebeck coefficient and electrical conductivity of the resulting composites. The variations in the thermoelectric properties of the SrTiO3/PANI composites consequently changed their power factor; at room temperature, the highest value was ~49.6 μW·m/K2, which is 17 times larger than that of pure PANI.

Investigation of Thermoelectric Properties of P-Type GaN Thin Films

2015 ◽  
Vol 1774 ◽  
pp. 13-18
Author(s):  
Bahadir Kucukgok ◽  
Babar Hussain ◽  
Chuanle Zhou ◽  
Ian T. Ferguson ◽  
Na Lu
Keyword(s):  
High Temperature ◽  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
Room Temperature ◽  
Mechanical Stability ◽  
Gradient Methods ◽  
Chemical Vapor ◽  
High Seebeck Coefficient ◽  
P Type ◽  
Bipolar Conduction

ABSTRACTGaN and its alloys are promising candidates for high temperature thermoelectric (TE) materials due to their high Seebeck coefficient and high thermal and mechanical stability. Moreover, these materials can overcome the toxicity concern of current Te-based TE materials, such as Bi2Te3 and PbTe. These materials have recently shown a higher Seebeck coefficient than that of SiGe in high temperature region because their large bandgap characteristic eliminates the bipolar conduction. In this study, we report the room temperature thermoelectric properties of p-type Mg doped GaN, grown by metalorganic chemical vapor deposition (MOCVD) on sapphire substrate with various carrier concentrations. Undoped and n-type GaN are also incorporated with p-type GaN films to make comparison. The structural, optical, electrical, and thermal properties of the samples were examined by X-ray diffraction, photoluminescence, van der Pauw hall-effect, and thermal gradient methods, respectively. The Seebeck coefficient ranging from 710-900µV/K at room temperature of Mg: GaN were observed, which further indicated their potential TE applications.

ALCHEMI of B2-Ordered Fe50Al45Me5 alloys

1996 ◽  
Vol 54 ◽  
pp. 548-549
Author(s):  
Ian M. Anderson
Keyword(s):  
Room Temperature ◽  
Iron Aluminide ◽  
Low Density ◽  
Intermetallic Alloys ◽  
Practical Applications ◽  
Alloying Additions ◽  
Site Distribution ◽  
Good Corrosion Resistance ◽  
Room Temperature Ductility ◽  
The Matrix

B2-ordered iron aluminide intermetallic alloys exhibit a combination of attractive properties such as low density and good corrosion resistance. However, the practical applications of these alloys are limited by their poor fracture toughness and low room temperature ductility. One current strategy for overcoming these undesirable properties is to attempt to modify the basic chemistry of the materials with alloying additions. These changes in the chemistry of the material cannot be fully understood without a knowledge of the site-distribution of the alloying elements. In this paper, the site-distributions of a series of 3d-transition metal alloying additions in B2-ordered iron aluminides are studied with ALCHEMI.A series of seven alloys of stoichiometry Fe50AL45Me5, with Me = {Ti, V, Cr, Mn, Co, Ni, Cu}, were prepared with identical heating cycles. Microalloying additions of 0.2% B and 0.1% Zr were also incorporated to strengthen the grain boundaries, but these alloying additions have little influence on the matrix chemistry and are incidental to this study.

The Influence of Silicon Dopant and Processing on Thermoelectric Properties of B4C Ceramics

1998 ◽  
Vol 545 ◽  
Author(s):  
Ke-Feng Cai ◽  
Ce-Wen Nan ◽  
Xin-Min Min
Keyword(s):  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
Hot Pressing ◽  
Figure Of Merit ◽  
Room Temperature ◽  
A Value ◽  
Si Doped

AbstractB4C ceramics doped with various content of Si (0 to 2.03 at%) are prepared via hot pressing. The composition and microstructure of the ceramics are characterized by means of XRD and EPMA. Their electrical conductivity and Seebeck coefficient of the samples are measured from room temperature up to 1500K. The electrical conductivity increases with temperature, and more rapidly after 1300K; the Seebeck coefficient of the ceramics also increases with temperature and rises to a value of about 320μVK−1. The value of the figure of merit of Si-doped B4C rises to about 4 × 10−4K−1 at 1500K.

Molecule-Based Magnets—An Overview

MRS Bulletin ◽  
2000 ◽  
Vol 25 (11) ◽  
pp. 21-30 ◽  
Author(s):  
Joel S. Miller ◽  
Arthur J. Epstein
Keyword(s):  
Low Temperature ◽  
Vapor Deposition ◽  
Room Temperature ◽  
Chemical Vapor ◽  
Magnetic Ordering ◽  
Low Density ◽  
Materials Properties ◽  
The Common ◽  
New Processing ◽  
Very High

Molecule-based magnets are a broad, emerging class of magnetic materials that expand the materials properties typically associated with magnets to include low density, transparency, electrical insulation, and low-temperature fabrication, as well as combine magnetic ordering with other properties such as photoresponsiveness. Essentially all of the common magnetic phenomena associated with conventional transition-metal and rare-earth-based magnets can be found in molecule-based magnets. Although discovered less than two decades ago, magnets with ordering temperatures exceeding room temperature, very high (∼27.0 kOe or 2.16 MA/m) and very low (several Oe or less) coercivities, and substantial remanent and saturation magnetizations have been achieved. In addition, exotic phenomena including photoresponsiveness have been reported. The advent of molecule-based magnets offers new processing opportunities. For example, thin-film magnets can be prepared by means of low-temperature chemical vapor deposition and electrodeposition methods.

Temperature-dependent hard X-ray photoemission spectra of ternary Tl compounds with high Seebeck coefficient

2009 ◽  
Vol 6 (5) ◽  
pp. 993-996 ◽  
Author(s):  
Kojiro Mimura ◽  
Takahiko Ishizu ◽  
Kazuya Yamamoto ◽  
Junta Takasu ◽  
Yuri Yonehira ◽  
...  
Keyword(s):  
Seebeck Coefficient ◽  
Temperature Dependent ◽  
X Ray ◽  
High Seebeck Coefficient
Sign in / Sign up

Export Citation Format

Share Document