scholarly journals Crystallinity-Dependent Thermoelectric Properties of a Two-Dimensional Coordination Polymer: Ni3(2,3,6,7,10,11-hexaiminotriphenylene)2

Polymers ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 962 ◽  
Author(s):  
Yoshiyuki Nonoguchi ◽  
Dai Sato ◽  
Tsuyoshi Kawai

The evaluation of thermoelectric properties has recently become a standard method for revealing the electronic properties of conducting polymers. Herein we report on the thermoelectric properties of a two-dimensional coordination polymer pellets. The pellets of Ni3(2,3,6,7,10,11-hexaiminotriphenylene)2, which has recently been developed, show n-type thermoelectric transport, dependent on crystallinity. The present results provide systematic feedback to the guideline for high-performance molecular thermoelectric materials.

2020 ◽  
Vol 22 (4) ◽  
pp. 1911-1922
Author(s):  
Kunpeng Yuan ◽  
Zhehao Sun ◽  
Xiaoliang Zhang ◽  
Xiaojing Gong ◽  
Dawei Tang

This work offers insights into the thermoelectric transport properties in rhombohedral GeSe by first-principles calculations and demonstrates that both p-type and n-type GeSe are potential high-performance thermoelectric materials.


Author(s):  
Qianglin Wei ◽  
Xueliang Zhu ◽  
Peng-Fei Liu ◽  
Yiyuan Wu ◽  
Jiangjiang Ma ◽  
...  

Through first-principles calculations, we report the thermoelectric properties of two-dimensional (2D) hexagonal group-IV tellurides XTe (X= Ge, Sn and Pb), with quadruple layers (QL) in Te-X-X-Te stackting sequence, as promising...


2007 ◽  
Vol 1044 ◽  
Author(s):  
Shinsuke Yamanaka ◽  
Ken Kurosaki ◽  
Anek Charoenphakdee ◽  
Hideaki Mastumoto ◽  
Hiroaki Muta

AbstractWith the goal of developing high-performance bulk thermoelectric materials, we have characterized ternary silver thallium tellurides. The ternary silver thallium tellurides exhibit extremely low thermal conductivity (<0.5 Wm−1K−1) and consequently their thermoelectric performance is excellent. Although the extremely low thermal conductivity materials, as typified by the ternary silver thallium tellurides, would be a new class of next-generation thermoelectric materials, thallium compounds are unsuitable for practical application because of their toxicity. Against such a background, we are currently exploring thallium-free thermoelectric materials with extremely low thermal conductivity. In this paper, we will briefly summarize the thermoelectric properties of ternary thallium tellurides obtained in our group. Further experiments aimed at improving the ZT of these materials will be presented. Finally, we will propose two candidates: Ag8GeTe6 and Ga2Te3 as thallium-free low thermal conductivity materials.


2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Haihua HUANG ◽  
Xiaofeng FAN

Thermoelectric technologies have caught our intense attention due to their ability of heat conversion into electricity. The considerable efforts have been taken to develop and enhance thermoelectric properties of materials over the past several decades. Recently, two-dimensional layered materials are making the promise for potential applications of thermoelectric devices because of the excellent physical and structural properties. Here, a comprehensive coverage about recent progresses in thermoelectric properties of typical two dimensional (2D) layered materials, including the theoretical and experimental results, is provided. Moreover, the potential applications of 2D thermoelectric materials are also involved. These results indicate that the development of 2D thermoelectric materials take a key role in the flexible electronic devices with thermoelectric technologies.


RSC Advances ◽  
2019 ◽  
Vol 9 (22) ◽  
pp. 12394-12403 ◽  
Author(s):  
Peng Yan ◽  
Guo-ying Gao ◽  
Guang-qian Ding ◽  
Dan Qin

Motivated by experimental synthesis of two-dimensional MSe2 (M = Zr, Hf) thin films, we investigate the thermoelectric transport properties of MSe2 (M = Zr, Hf) bilayers by using first-principles calculations and Boltzmann transport theory.


2015 ◽  
Vol 3 (13) ◽  
pp. 3189-3197 ◽  
Author(s):  
Zhen-Kun Tang ◽  
Xi-Bo Li ◽  
Deng-Yu Zhang ◽  
Yan-Ning Zhang ◽  
Li-Min Liu

In order to design the high-performance spintronics, it is rather critical to develop new materials, which can easily regulate the magnetism of nanostructures.


Author(s):  
Baojuan Dong ◽  
Zhenhai Wang ◽  
Nguyen T. Hung ◽  
Artem R. Oganov ◽  
Teng Yang ◽  
...  

2015 ◽  
Vol 3 (12) ◽  
pp. 6526-6533 ◽  
Author(s):  
Dohyuk Yoo ◽  
Jeonghun Kim ◽  
Seung Hwan Lee ◽  
Wonseok Cho ◽  
Hyang Hee Choi ◽  
...  

Synergic effects of conducting polymers, carbon nanotubes, and graphene result in the enhanced thermoelectric properties of nanocomposites.


2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Delong Li ◽  
Youning Gong ◽  
Yuexing Chen ◽  
Jiamei Lin ◽  
Qasim Khan ◽  
...  

AbstractThermoelectric generators have attracted a wide research interest owing to their ability to directly convert heat into electrical power. Moreover, the thermoelectric properties of traditional inorganic and organic materials have been significantly improved over the past few decades. Among these compounds, layered two-dimensional (2D) materials, such as graphene, black phosphorus, transition metal dichalcogenides, IVA–VIA compounds, and MXenes, have generated a large research attention as a group of potentially high-performance thermoelectric materials. Due to their unique electronic, mechanical, thermal, and optoelectronic properties, thermoelectric devices based on such materials can be applied in a variety of applications. Herein, a comprehensive review on the development of 2D materials for thermoelectric applications, as well as theoretical simulations and experimental preparation, is presented. In addition, nanodevice and new applications of 2D thermoelectric materials are also introduced. At last, current challenges are discussed and several prospects in this field are proposed.


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