Methodology of teasting thermoelectric properties of low-dimensional nanomaterials

Wei, Jiangtao; Liang-Liang, Yang; Yuanhao, Qin; Song, Peng; Zhang, Mingliang; Yang, Fuhua; Wang, Xiaodong

doi:10.7498/aps.70.20201175

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To further improve the voltage output of TGCs, connecting p-type and n-type cells in series is capable of dramatically increasing the potential difference. ,− However, very limited redox pairs were reported to generate an outstanding thermopower. Meanwhile, it is relatively difficult to find and fabricate new redox couples for TGCs. − Alternatively, n–p or p–n conversion for expanding redox couples is highly promising to resolve the challenge for TGCs. ,, For solid semiconductive thermoelectrics, doping with electron-deficient or electron-rich elements is able to convert the energy carrier with the simultaneous n–p or p–n conversion . However, a straightforward and efficient strategy for n–p or p–n conversion of TGCs is rarely achieved, significantly hindering the development and applications of TGCs.…”

Section: Introductionmentioning

confidence: 99%

“…18−20 Alternatively, n−p or p−n conversion for expanding redox couples is highly promising to resolve the challenge for TGCs. 17,21,22 For solid semiconductive thermoelectrics, doping with electron-deficient or electron-rich elements is able to convert the energy carrier with the simultaneous n−p or p−n conversion. 23 prominent advantage of using easily prepared and scalable thermoresponsive diblock copolymers.…”

mentioning

confidence: 99%

See 1 more Smart Citation

p–n Conversion of Thermogalvanic Cells by Harnessing the Micellization of Thermoresponsive Diblock Copolymers

Shen,

Wu,

Hua

et al. 2023

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Thermoelectric energy conversion based on the Seebeck effect holds great potential for effectively mitigating economic and environmental impacts. In contrast to conventional solid semiconductor thermoelectric cells, liquid thermogalvanic cells (TGC) have 1 order of magnitude higher thermopower of approx. 1 mV K–1. However, very limited redox pairs were reported to generate outstanding thermopowers for TGCs. Therefore, achieving n–p or p–n conversion for expanding redox couples is highly promising to resolve the challenge for TGCs. Herein, the p–n conversion of the I–/I3 – TGC with high thermopowers was accomplished by employing easily prepared and scalable thermoresponsive diblock copolymers. By combining the distinct anion–polymer interaction and the micellization of the diblock copolymer, variable concentrations of ions invert the redox reactions at hot and cold sides. As a result, the efficient p–n conversion and enhanced power conversion efficiency was achieved for the I–/I3 – TGC with the introduction of copolymers. Building on the different ion–polymer interactions, the strategy developed in this work is also highly expected to extend to other electrochemical processes and applications.

show abstract