DataVXACS Applied Electronic MaterialsPaper
journal article·2020-09-22

A Flexible and Infrared-Transparent Bi2Te3-Carbon Nanotube Thermoelectric Hybrid for both Active and Passive Cooling

Ying Li, Yang Zhao, Jixiang Qiao, Song Jiang, Jianhang Qiu, Jun Tan, Lili Zhang, Zhigang Gai, Kaiping Tai, Chang Liu

ACS Applied Electronic Materials· Volume 2· Issue 9
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Source abstract

Abstract

On-demand thermal management based on the Peltier effect of thermoelectric (TE) materials has attracted great attention due to its unique advantages of a simple structure, no moving parts, quietness, compactness, and precise temperature control. However, conventional bulk TE materials are inherently rigid, and it is therefore difficult to acquire close contact with heat sources and heat sinks with complex geometries, resulting in poor heat transfer and cooling ability. In addition, they are optically opaque and dense, blocking passive heat dissipation by thermal radiation and air convection. Tailoring TE materials with mid-infrared (IR) transparency and good flexibility to achieve both active and passive cooling remains a great challenge. Here, we report a nanoporous TE hybrid composed of (000l)-textured n-type Bi2Te3 nanocrystals anchored on a single-wall carbon nanotube (SWCNT) network. It achieves an in-plane power factor of ∼265 μW m–1 K–2 and a low thermal conductivity of ∼0.34 W m–1 K–1, yielding a TE figure of merit (ZT) value of ∼0.23 in the temperature range from room temperature to ∼373 K. This hybrid has excellent flexibility and a maximum IR transparency of ∼16%. Our results open a way to develop efficient TEs with both active and passive cooling abilities.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Advanced Thermoelectric Materials and Devices · Thermal Radiation and Cooling Technologies · Advanced Thermodynamics and Statistical Mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China

University of Chinese Academy of Sciences, Shenyang 110016, China

School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China

State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.

Tianjin Institute of Power Sources, Tianjin 300381, China

Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, National Engineering and Technological Research Center of Marine Monitoring Equipment, Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao 266061, China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Science Foundation for The Excellent Youth Scholars, Liaoning Province

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