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Recent advances in ethanol gas sensors based on metal oxide semiconductor heterojunctions

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Abstract

Metal oxide semiconductor heterojunctions (MOSHs) can enhance the performance of ethanol gas sensors substantially. Ethanol gas sensors based on MOSHs are cost-effective and have excellent sensing response, good selectivity, fast response and recovery, long-term stability or repeatability, a low operating temperature, a facile fabrication process, and versatile applications. This paper reviews the recent advances in gas sensors that are based on MOSHs and the advantages of using them to detect ethanol gas. According to the literature, compared with ethanol gas sensors that use single-component sensing materials, the MOSHs exhibit superior performance due to the synergy between the different components, which can amplify the reception and transduction components of the sensor signals. To the best of our knowledge, heterojunctions can be grouped into four main categories as metal oxide/metal oxide, metal oxide/metal sulfide, metal oxide/noble metal, and metal oxide/other materials, including rare-earth metals, g-C3N4, and graphene, heterojunctions. The future trends and challenges that would be faced in the development of ethanol gas sensors based on MOSHs are discussed in detail. Finally, critical ideas and thinking regarding the future progress of MOSH-based gas sensors are presented.

Graphical abstract

摘要

金属氧化物半导体异质结 (MOSH) 可以显著提高乙醇气体传感器的传感性能。基于MOSH的乙醇气体传感器具有以下特点: 易制备, 低成本, 在低温下响应高, 选择性好, 响应/恢复速度快, 稳定性好, 应用广泛。本文总结归纳了MOSH乙醇气体传感器的最新研究进展和优势。根据文献报道, 与基于单组分敏感材料的乙醇气体传感器相比, 由于不同组分之间的协同效应, MOSH可以增强接收和传导信号, 进而提高气体传感器的传感性质。据我们所知, MOSH大致分为以下四类: 1、金属氧化物/金属氧化物异质结; 2、金属氧化物/金属硫化物异质结; 3、金属氧化物/贵金属异质结; 4、金属氧化物/其他材料 (稀土、g-C3N4、石墨烯) 异质结。另外, 本文还详细讨论了基于MOSH乙醇气体传感器未来的发展方向和挑战。最后, 对基于MOSH气体传感器的发展前景提出了一些想法和思考。

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Acknowledgements

This work was financially supported by Brain Pool program funded by the Ministry of Science and ICT through the National Research Foundation of Korea (No. 2021H1D3A2A01100019), the National Natural Science Foundation of China (No. 62074057), Projects of Science and Technology Commission of Shanghai Municipality (Nos. 19ZR1473800 and 18DZ2270800), the Open Research Projects of Zhejiang Lab (No. 2021MC0AB06), the Postdoctoral Scientific Research Foundation of Qingdao. The authors would also like to thank Kehui Han from Shiyanjia Lab (www.shiyanjia.com) for interesting discussion and measurements.

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  1. Ling-Yun Gai, Run-Ping Lai and Xian-Hui Dong contributed equally to this work.

Authors and Affiliations

  1. Big Data and Network Management Center, Qingdao Agricultural University, Qingdao, 266109, China

    Ling-Yun Gai

  2. School of Mechanical Electronic and Information Engineering, China University of Mining and Technology-Beijing, Beijing, 10083, China

    Run-Ping Lai

  3. School of Material Science and Engineering, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, China

    Xian-Hui Dong, Guang-Lei Wu & Wan-Feng Xie

  4. School of Electronics and Information, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, China

    Xian-Hui Dong, Qiao-Tong Luan, Jue Wang, Hao-Feng Lin, Wen-Hao Ding & Wan-Feng Xie

  5. Shanghai Key Laboratory of Multidimensional Information Processing, School of Communication and Electronic Engineering, East China Normal University, Shanghai, 200241, China

    Xing Wu

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Gai, LY., Lai, RP., Dong, XH. et al. Recent advances in ethanol gas sensors based on metal oxide semiconductor heterojunctions. Rare Met. 41, 1818–1842 (2022). https://doi.org/10.1007/s12598-021-01937-4

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