Self-Assembly 3D Porous Crumpled MXene Spheres as Efficient Gas and Pressure Sensing Material for Transient All-MXene Sensors  

作　　者：Zijie Yang Siyuan Lv Yueying Zhang Jing Wang Li Jiang Xiaoteng Jia Chenguang Wang Xu Yan Peng Sun Yu Duan Fangmeng Liu Geyu Lu 

机构地区：[1]State Key Laboratory of Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,2699 Qianjin Street,Changchun 130012,People’s Republic of China [2]School of Electronic and Information Engineering,Changchun University of Science and Technology,Changchun 130022,People’s Republic of China

出　　处：《Nano-Micro Letters》2022年第4期1-14,共14页纳微快报（英文版）

基　　金：supported by the National Nature Science Foundation of China(Nos.62122030,61831011,61803171,61722305,61833006,and 21902057);Program for Chang Jiang Scholars and Innovative Research Team in University(No.IRT-17R47);Application and Basic Research of Jilin Province(20130102010 JC);Young Elite Scientists Sponsorship Program by CAST(2018QN RC001);Jilin Province Science and Technology Development Plan Program(20200301010RQ);Fundamental Research Funds for the Central Universities,Graduate Innovation Fund of Jilin University(101832020CX170).

摘　　要：Environmentally friendly degradable sensors with both hazardous gases and pressure efficient sensing capabilities are highly desired for various promising applications,including environmental pollution monitoring/prevention,wisdom medical,wearable smart devices,and artificial intelligence.However,the transient gas and pressure sensors based on only identical sensing material that concurrently meets the above detection needs have not been reported.Here,we present transient all-MXene NO_(2) and pressure sensors employing three-dimensional porous crumpled MXene spheres prepared by ultrasonic spray pyrolysis technology as the sensing layer,accompanied with water-soluble polyvinyl alcohol substrates embedded with patterned MXene electrodes.The gas sensor achieves a ppb-level of highly selective NO_(2) sensing,with a response of up to 12.11%at 5 ppm NO_(2) and a detection range of 50 ppb-5 ppm,while the pressure sensor has an extremely wide linear pressure detection range of 0.14-22.22 kPa and fast response time of 34 ms.In parallel,all-MXene NO_(2) and pressure sensors can be rapidly degraded in medical H_(2)O_(2) within 6 h.This work provides a new avenue toward environmental monitoring,human physiological signal monitoring,and recyclable transient electronics.

关 键 词：All-MXene 3D porous crumpled MXene sphere TRANSIENT NO2 and pressure sensor 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TB34[自动化与计算机技术—控制科学与工程]