文献类型：期刊文献

英文题名：Ultrasensitive piezoelectric sensor based on two-dimensional Na2Cl crystals with periodic atom vacancies

作者：Wang, Tao[1]; Fan, Yan[2]; Jiang, Jie[1]; Zhang, Yangyang[3]; Huang, Yingying[4]; Zhu, Liuyuan[4]; Zhan, Haifei[5]; Zhang, Chunli[6]; Peng, Bingquan[7]; Gu, Zhen[8]; Pan, Qiubo[4]; Wu, Junjie[6]; Chen, Junlang[2]; Li, Pei[1]; Zhang, Lei[9]; Chen, Liang[1]; Lü, Chaofeng[3,5]; Fang, Haiping[4,10]

机构：[1] School of Physical Science and Technology, Ningbo University, Ningbo, 315211, China; [2] Department of Optical Engineering, Zhejiang A&F University, Hangzhou, 311300, China; [3] Faculty of Mechanical Engineering & Mechanics, Ningbo University, Ningbo, 315211, China; [4] School of Physics, East China University of Science and Technology, Shanghai, 200237, China; [5] College of Civil Engineering and Architecture, Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China; [6] Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China; [7] Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang, Wenzhou, 325000, China; [8] Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China; [9] MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an, 710049, China; [10] School of Physics, Zhejiang University, Hangzhou, 310027, China

年份：2024

外文期刊名：arXiv

收录：EI(收录号：20240036687)

语种：英文

外文关键词：Chlorine compounds - Crystals - Electric sensing devices - Graphene - Piezoelectric devices - Piezoelectricity - Sodium compounds

摘要：Pursuing ultrasensitivity of pressure sensors has been a long-standing goal. Here, we report a piezoelectric sensor that exhibits supreme pressure-sensing performance, including a peak sensitivity up to 3.5×106 kPa?1 in the pressure range of 1-100 mPa and a detection limit of less than 1 mPa, superior to the current state-of-the-art pressure sensors. These properties are attributed to the high percentage of periodic atom vacancies in the two-dimensional Na2Cl crystals formed within multilayered graphene oxide membrane in the sensor, which provides giant polarization with high stability. The sensor can even clearly detect the airflow fluctuations surrounding a flapping butterfly, which have long been the elusive tiny signals in the famous "butterfly effect". The finding represents a step towards next-generation pressure sensors for various precision applications. Copyright ? 2024, The Authors. All rights reserved.