DataVXAdvanced MaterialsPaper
journal article·2022-02

Microstructurally Tailored Thin β‐Ag2Se Films toward Commercial Flexible Thermoelectrics

Yan Lei, Ruijuan Qi, Miaoying Chen, Hong Chen, Chengcheng Xing, Fengrui Sui, Longyan Gu, Weiwei He, Yange Zhang, Takahiro Baba, Tetsuya Baba, Hong Lin, Takao Mori, Kunihito Koumoto, Yuan Lin, Zhi Zheng

Advanced Materials· Volume 34· Issue 7
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Source abstract

Abstract

Abstract Aiming to overcome both the structural and commercial limitations of flexible thermoelectric power generators, an efficient room‐temperature aqueous selenization reaction that can be completed in air within less than 1 min, to directly fabricate thin β‐Ag2Se films consisting of perfectly crystalline and large columnar grains with both in‐plane randomness and out‐of‐plane [201] preferred orientation, is designed. A high power factor (PF) of 2590 ± 414 µW m−1 K−2 and a figure‐of‐merit (zT) of 1.2 ± 0.42 are obtained from a sample with a thickness of ≈1 µm. The maximum output power density of the best 4‐leg thermoelectric generator sample reach 27.6 ± 1.95 and 124 ± 8.78 W m−2 at room temperature with 30 and 60 K temperature differences, respectively, which may be useful in future flexible thermoelectric devices.
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Research context

OpenAlex topics: Advanced Thermoelectric Materials and Devices · Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films

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

Affiliations

Key Laboratory for Micro‐Nano Energy Storage and Conversion Materials of Henan Province College of Advanced Materials and Energy Institute of Surface Micro and Nano Materials Xuchang University No. 88 Bayi Road, Xuchang City Henan 461000 P. R. China

Beijing National Laboratory for Molecular Sciences Key Laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences North First Street 2, Zhongguancun Beijing 100190 P. R. China

University of Chinese Academy of Sciences No. 19(A) Yuquan Road, Shijingshan District Beijing 100049 P. R. China

Key Laboratory of Polar Materials and Devices Ministry of Education Department of Electronic Science School of Physics and Electronic Science East China Normal University No. 500 Dongchuan Road Shanghai 200241 P. R. China

National Institute for Materials Science International Center for Materials Nanoarchitectonics (WPI‐MANA) Namiki 1‐1 Tsukuba Ibaraki 3050044 Japan

State Key Lab New Ceramic & Fine Processing School of Materials Science & Engineering Tsinghua University No. 30 Shuangqing Road, Zhongguancun Beijing 100084 P. R. China

Graduate School of Pure and Applied Science University of Tsukuba 1‐1‐1 Tennodai Tsukuba Ibaraki 305‐8671 Japan

Nagoya Industrial Science Research Institute Nagoya Aichi 464‐0819 Japan

Center of Nanotechnology King Abdulaziz University Jeddah 21589 Saudi Arabia

Funding

National Natural Science Foundation of China

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