scholarly journals Fabrication of PEDOT:PSS/Ag2Se Nanowires for Polymer-Based Thermoelectric Applications

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2932 ◽  
Author(s):  
Dabin Park ◽  
Minsu Kim ◽  
Jooheon Kim
Keyword(s):  
Composite Film ◽  
Thermoelectric Power ◽  
Power Factor ◽  
High Performance ◽  
Room Temperature ◽  
Composite Films ◽  
Casting Method ◽  
Thermoelectric Power Factor ◽  
Potential Applications ◽  
Flexible Thermoelectric

Flexible Ag2Se NW/PEDOT:PSS thermoelectric composite films with different Ag2Se contents (10, 20, 30, 50, 70, and 80 wt.%) are fabricated. The Ag2Se nanowires are first fabricated with solution mixing. After that, Ag2Se NW/PEDOT:PSS composite film was fabricated using a simple drop-casting method. To evaluate the potential applications of the Ag2Se NW/PEDOT:PSS composite, their thermoelectric properties are analyzed according to their Ag2Se contents, and strategies for maximizing the thermoelectric power factor are discussed. The maximum room-temperature power factor of composite film (178.59 μW/m·K2) is obtained with 80 wt.% Ag2Se nanowires. In addition, the composite film shows outstanding durability after 1000 repeat bending cycles. This work provides an important strategy for the fabrication of high-performance flexible thermoelectric composite films, which can be extended to other inorganic/organic composites and will certainly promote their development and thermoelectric applications.

Solution-processable flexible thermoelectric composite films based on conductive polymer/SnSe0.8S0.2 nanosheets/carbon nanotubes for wearable electronic applications

2018 ◽  
Vol 6 (14) ◽  
pp. 5627-5634 ◽  
Author(s):  
Hyun Ju ◽  
Dabin Park ◽  
Jooheon Kim
Keyword(s):  
Carbon Nanotubes ◽  
Thermoelectric Power ◽  
Power Factor ◽  
Composite Films ◽  
Conductive Polymer ◽  
Solution Processing ◽  
Thermoelectric Power Factor ◽  
Processing Procedure ◽  
Wearable Electronic ◽  
Flexible Thermoelectric

Flexible thermoelectric composite films with a high thermoelectric power factor are achieved via a solution processing procedure.

scholarly journals Conductive PEDOT: PSS-Based Organic/Inorganic Flexible Thermoelectric Films and Power Generators

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 210
Author(s):  
Dabin Park ◽  
Minsu Kim ◽  
Jooheon Kim
Keyword(s):  
Composite Film ◽  
Thermoelectric Properties ◽  
Power Factor ◽  
High Performance ◽  
Composite Films ◽  
Precursor Solution ◽  
Thermoelectric Device ◽  
Power Generators ◽  
Conductive Composite Film ◽  
Flexible Thermoelectric

We present a simple thermoelectric device that consists of a conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)-based inorganic/organic thermoelectric film with high thermoelectric performance. The PEDOT:PSS-coated Se NWs were first chemically synthesized in situ, and then mixed with an Ag precursor solution to produce the PEDOT:PSS-coated Ag2Se NWs. The PEDOT:PSS matrix was then treated with dimethyl sulfoxide (DMSO) prior to the production of flexible PEDOT:PSS-coated Ag2Se NW/PEDOT:PSS composite films with various weight fractions of Ag2Se via a simple drop-casting method. The thermoelectric properties (Seebeck coefficient, electrical conductivity, and power factor) of the composite films were then analyzed. The composite film with 50 wt.% NWs exhibited the highest power factor of 327.15 μW/m·K2 at room temperature. The excellent flexibility of this composite film was verified by bending tests, in which the thermoelectric properties were reduced by only ~5.9% after 1000 bending cycles. Finally, a simple thermoelectric device consisting of five strips of the proposed composite film was constructed and was shown to generate a voltage of 7.6 mV when the temperature difference was 20 K. Thus, the present study demonstrates that that the combination of a chalcogenide and a conductive composite film can produce a high-performance flexible thermoelectric composite film.

Thermoelectric Power Factor of Polycrystalline La0.75Sr0.25Co1-xMnxO3-δCeramics

2009 ◽  
Vol 1166 ◽  
Author(s):  
Julio E. Rodríguez ◽  
J. A. Niño
Keyword(s):  
Transport Properties ◽  
Thermoelectric Power ◽  
Power Factor ◽  
Figure Of Merit ◽  
Room Temperature ◽  
Manganese Content ◽  
Solid State Reaction Method ◽  
Measured Temperature ◽  
Thermoelectric Power Factor ◽  
Temperature Range

AbstractThermoelectric properties of polycrystalline La0.75Sr0.25Co1-xMnxO3-δ(0<x<0.08) (LSCoO-Mn) compounds have been studied. The samples were grown by solid-state reaction method; their transport properties were studied in the temperature range between 100 and 290K, as a function of temperature and the manganese content. The Seebeck coefficient (S) is positive over the measured temperature range and its magnitude increases with the manganese content up to values close to 160 μV/K. The electrical resistivity (ρ) goes from metallic to semiconducting behavior as the Mn level increases, at room temperature, ρ(T) exhibit values less than 4mΩ-cm. From S(T), ρ(T) and κ(T) data, the thermoelectric power factor and the figure of merit were determined. These performance parameters reach maximum values around 18 μW/K2-cm and 0.2, respectively. The observed behavior in the transport properties become these compounds potential thermoelectric materials, which could be used in thermoelectric applications.

scholarly journals Deposition potential controlled structural and thermoelectric behavior of electrodeposited CoSb3 thin films

RSC Advances ◽  
2017 ◽  
Vol 7 (33) ◽  
pp. 20336-20344 ◽  
Author(s):  
Suchitra Yadav ◽  
Brajesh S. Yadav ◽  
Sujeet Chaudhary ◽  
Dinesh K. Pandya
Keyword(s):  
Thin Films ◽  
Thermoelectric Power ◽  
Power Factor ◽  
Room Temperature ◽  
Deposition Potential ◽  
Micro Structure ◽  
Thermoelectric Power Factor

Deposition potential controlled evolution of (420) textured CoSb3 phase and micro structure correlated to enhancement in near room temperature thermoelectric power-factor.

PHONON-DRAG EFFECT OF ULTRA-THIN FeSi2 AND MnSi1.7/FeSi2 FILMS

2011 ◽  
Vol 25 (22) ◽  
pp. 1829-1838 ◽  
Author(s):  
Q. R. HOU ◽  
B. F. GU ◽  
Y. B. CHEN ◽  
Y. J. HE
Keyword(s):  
Electrical Resistivity ◽  
Seebeck Coefficient ◽  
Single Crystals ◽  
Thermoelectric Power ◽  
Power Factor ◽  
Low Temperatures ◽  
Room Temperature ◽  
Phonon Drag ◽  
Drag Effect ◽  
Thermoelectric Power Factor

Phonon-drag effect usually occurs in single crystals at very low temperatures (10–200 K). Strong phonon-drag effect is observed in ultra-thin β- FeSi 2 films at around room temperature. The Seebeck coefficient of a 23 nm-thick β- FeSi 2 film can reach -1.375 mV/K at 343 K. However, the thermoelectric power factor of the film is still small, only 0.42×10-3 W/m-K2, due to its large electrical resistivity. When a 27 nm-thick MnSi 1.7 film with low electrical resistivity is grown on it, the thermoelectric power factor of the MnSi 1.7 film can reach 1.5×10-3 W/m-K2 at around room temperature. This value is larger than that of bulk MnSi 1.7 material in the same temperature range.

scholarly journals Enormous thermoelectric power factor of ZrTe2/SrTiO3 heterostructure

2021 ◽  
Author(s):  
Chun Hung Suen ◽  
Songhua Cai ◽  
Hui Li ◽  
Xiaodan Tang ◽  
Huichao Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thermoelectric Power ◽  
Power Factor ◽  
High Performance ◽  
Transition Metal Dichalcogenides ◽  
Thermoelectric Device ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Thermoelectric Power Factor ◽  
Dimensional Electron Gas

Abstract Achieving high thermoelectric power factor in thin film heterostructures is essential for integrated and miniaturized thermoelectric device applications. In this work, we demonstrate a mechanism to enhance thermoelectric power factor through coupling the interfacial confined two-dimensional electron gas (2DEG) with thin film conductivity in a transition metal dichalcogenides-SrTiO3 heterostructure. Owing to the formed conductive interface with two-dimensional electron confinement effect and the elevated conductivity, the ZrTe2/SrTiO3 (STO) heterostructure presents enormous thermoelectric power factor as high as 4×10^5 μW cm^(-1) K^(-2) at 20 K and 4800 μW cm^(-1) K^(-2) at room temperature. Interfacial reaction induced degradation of Ti cations valence number from Ti4+ to Ti3+ is attributed to be responsible for the formation of the quasi-two-dimensional electrons at the interface which results in very large Seebeck coefficient; and the enhanced electrical conductivity is suggested to be originated from the charge transfer induced doping in the ZrTe2. By taking the thermal conductivity of STO substrate as a reference, the effective zT value of this heterostructure can reach 15 at 300 K. This superior thermoelectric property makes this heterostructure a promising candidate for future thermoelectric device, and more importantly, paves a new pathway to design promising high-performance thermoelectric systems.

Flexible thermoelectric fabrics based on self-assembled tellurium nanorods with a large power factor

2015 ◽  
Vol 17 (14) ◽  
pp. 8591-8595 ◽  
Author(s):  
Chaochao Dun ◽  
Corey A. Hewitt ◽  
Huihui Huang ◽  
David S. Montgomery ◽  
Junwei Xu ◽  
...  
Keyword(s):  
Power Factor ◽  
High Performance ◽  
Room Temperature ◽  
Large Power ◽  
Self Assembled ◽  
Flexible Thermoelectric

High performance thermoelectric fabrics with a room temperature power factor of 45.8 μW m−1 K−2 were fabricated based on self-assembled Te nanorods.

High Thermoelectric Power Factor Near Room Temperature in Full-Heusler Alloys

2009 ◽  
Vol 38 (7) ◽  
pp. 1221-1223 ◽  
Author(s):  
Eric J. Skoug ◽  
Chen Zhou ◽  
Yanzhong Pei ◽  
Donald T. Morelli
Keyword(s):  
Thermoelectric Power ◽  
Power Factor ◽  
Room Temperature ◽  
Heusler Alloys ◽  
Thermoelectric Power Factor ◽  
Full Heusler ◽  
Full Heusler Alloys
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