Remote Tracking Gas Molecular via the Standalone-Like Nanosensor-Based Tele-Monitoring System

Han Jin; Junkan Yu; Daxiang Cui; Shan Gao; Hao Yang; Xiaowei Zhang; Changzhou Hua; Shengsheng Cui; Cuili Xue; Yuna Zhang; Yuan Zhou; Bin Liu; Wenfeng Shen; Shengwei Deng; Wanlung Kam; Waifung Cheung

doi:10.1007/s40820-020-00551-w

Remote Tracking Gas Molecular via the Standalone-Like Nanosensor-Based Tele-Monitoring System

Nanomicro Lett. 2021 Jan 4;13(1):32. doi: 10.1007/s40820-020-00551-w.

Authors

Han Jin^#^{1

2}, Junkan Yu^#³, Daxiang Cui^#^{4

5}, Shan Gao^#⁶, Hao Yang^#⁶, Xiaowei Zhang^#³, Changzhou Hua^#³, Shengsheng Cui^#⁴, Cuili Xue⁴, Yuna Zhang⁴, Yuan Zhou⁴, Bin Liu⁴, Wenfeng Shen⁷, Shengwei Deng⁸, Wanlung Kam⁹, Waifung Cheung⁹

Affiliations

¹ Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China. jinhan10@sjtu.edu.cn.
² National Engineering Research Center for Nanotechnology, Shanghai, 200240, People's Republic of China. jinhan10@sjtu.edu.cn.
³ School of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, People's Republic of China.
⁴ Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
⁵ National Engineering Research Center for Nanotechnology, Shanghai, 200240, People's Republic of China.
⁶ State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, People's Republic of China.
⁷ Ningbo Materials Science and Technology Institute, Chinese Academy of Sciences, Ningbo, 315201, People's Republic of China.
⁸ College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.
⁹ Qi Diagnostics Ltd, Hongkong, People's Republic of China.

^# Contributed equally.

Abstract

Highlights:

A standalone-like smart device that can remotely track the variation of air pollutants in a power-saving way is created;
Metal–organic framework-derived hollow polyhedral ZnO was successfully synthesized, allowing the created smart device to be highly selective and to sensitively track the variation of NO₂ concentration;
A novel photoluminescence-enhanced Li-Fi telecommunication technique is proposed, offering the created smart device with the capability of long distance wireless communication.

Abstract: Remote tracking the variation of air quality in an effective way will be highly helpful to decrease the health risk of human short- and long-term exposures to air pollution. However, high power consumption and poor sensing performance remain the concerned issues, thereby limiting the scale-up in deploying air quality tracking networks. Herein, we report a standalone-like smart device that can remotely track the variation of air pollutants in a power-saving way. Brevity, the created smart device demonstrated satisfactory selectivity (against six kinds of representative exhaust gases or air pollutants), desirable response magnitude (164–100 ppm), and acceptable response/recovery rate (52.0/50.5 s), as well as linear response relationship to NO₂. After aging for 2 weeks, the created device exhibited relatively stable sensing performance more than 3 months. Moreover, a photoluminescence-enhanced light fidelity (Li-Fi) telecommunication technique is proposed and the Li-Fi communication distance is significantly extended. Conclusively, our reported standalone-like smart device would sever as a powerful sensing platform to construct high-performance and low-power consumption air quality wireless sensor networks and to prevent air pollutant-induced diseases via a more effective and low-cost approach.

Electronic supplementary material: The online version of this article (10.1007/s40820-020-00551-w) contains supplementary material, which is available to authorized users.

Keywords: Metal–organic framework-derived polyhedral ZnO; NO2; Nanosensor; Perovskite quantum dots; Tele-monitoring system.