Exploiting Two-Dimensional Bi2 O2 Se for Trace Oxygen Detection

Shipu Xu; Huixia Fu; Ye Tian; Tao Deng; Jun Cai; Jinxiong Wu; Teng Tu; Tianran Li; Congwei Tan; Yan Liang; Congcong Zhang; Zhi Liu; Zhongkai Liu; Yulin Chen; Ying Jiang; Binghai Yan; Hailin Peng

doi:10.1002/anie.202006745

Exploiting Two-Dimensional Bi₂ O₂ Se for Trace Oxygen Detection

Angew Chem Int Ed Engl. 2020 Oct 5;59(41):17938-17943. doi: 10.1002/anie.202006745. Epub 2020 Aug 18.

Authors

Shipu Xu¹, Huixia Fu², Ye Tian³, Tao Deng^{4

5

6}, Jun Cai^{4

6}, Jinxiong Wu⁷, Teng Tu¹, Tianran Li¹, Congwei Tan⁸, Yan Liang¹, Congcong Zhang¹, Zhi Liu^{4

6}, Zhongkai Liu^{6

9

10

11}, Yulin Chen^{6

9

10

11}, Ying Jiang^{3

12

13}, Binghai Yan², Hailin Peng¹

Affiliations

¹ Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China.
² Department of Condensed Matter Physics, Weizmann Institute of Science, 7610001, Rehovot, Israel.
³ International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871, P. R. China.
⁴ CAS Center for Excellence in Superconducting Electronics (CENSE), State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
⁵ University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
⁶ School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China.
⁷ Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin, 300350, P. R. China.
⁸ Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, P. R. China.
⁹ ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, Shanghai, 201210, P. R. China.
¹⁰ Collaborative Innovation Center of Quantum Matter, Beijing, 100084, P. R. China.
¹¹ Department of Physics, University of Oxford, Oxford, OX1 3PU, UK.
¹² Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China.
¹³ CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing, P. R. China.

PMID: 32643300
DOI: 10.1002/anie.202006745

Abstract

We exploit a high-performing resistive-type trace oxygen sensor based on 2D high-mobility semiconducting Bi₂ O₂ Se nanoplates. Scanning tunneling microscopy combined with first-principle calculations confirms an amorphous Se atomic layer formed on the surface of 2D Bi₂ O₂ Se exposed to oxygen, which contributes to larger specific surface area and abundant active adsorption sites. Such 2D Bi₂ O₂ Se oxygen sensors have remarkable oxygen-adsorption induced variations of carrier density/mobility, and exhibit an ultrahigh sensitivity featuring minimum detection limit of 0.25 ppm, long-term stability, high durativity, and wide-range response to concentration up to 400 ppm at room temperature. 2D Bi₂ O₂ Se arrayed sensors integrated in parallel form are found to possess an oxygen detection minimum of sub-0.25 ppm ascribed to an enhanced signal-to-noise ratio. These advanced sensor characteristics involving ease integration show 2D Bi₂ O₂ Se is an ideal candidate for trace oxygen detection.

Keywords: Bi2O2Se; amorphous layers; integration; oxygen sensors; two-dimensional materials.

Abstract

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