Tunable Infrared Sensing Properties of MXenes Enabled by Intercalants

Tang，Jun1; Wan，Hujie2; Chang，Libo2; Hu，Bihua1; Cui，Shuyu1; Chen，Yulong1; Chen，Wei3,4; Hao，Junjie3,5; Tang，Haodong3,5; Wang，Xingzhu1,6,7; Wang，Kai3,5; Zhang，Chuanfang8,9; Wen，Qiye2; Xiao，Xu2; Xu，Baomin1,5

2022

10.1002/adom.202200623

Advanced Optical Materials   影响因子和分区

2195-1071

Light interaction physical properties of MXenes are fundamentally important and promising for developing new broadband photodetection applications. In this work, the significant influence of intercalants on the photo-electronic properties of MXenes is studied. It is found that the intercalated HO-induced inter-flake resistance greatly restricts the photon excitation responsivity of TiCT, resulting in a slow and irreversible resistance change under laser irradiation. After deintercalation of HO by in situ laser writing, the resistance of TiCT responds fast and reversibly to laser excitation and the variation range is proportional to laser power. By extending the findings to another MXene member, MoTiC, the intercalant induced resistance is successfully developed for optoelectronic detection. By selectively deintercalating HO in the as-prepared MoTiC which is co-intercalated by HO and TMAOH, bare TMAOH intercalated MoTiC shows fast and reversible resistance changes with laser. Moreover, the resistance of bare TMAOH intercalated MoTiC shows a negative temperature coefficient behavior while the fully deintercalated TiCT shows a positive temperature behavior. These findings elucidate the understanding of the optoelectronic properties of MXenes and provide insights into the engineering of interfacial chemistry of MXenes for performance enhancement toward various detectors/sensors beyond optoelectronic applications.

fast infrared response infrared sensors intercalants MXenes photothermal conversion

SCI ; EI

英语

第一 ; 通讯

WOS:000806261100001

20222312196749

Electric resistance ; Electronic properties ; Infrared detectors ; Molybdenum compounds ; Temperature ; Titanium compounds

Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Laser Applications:744.9 ; Physical Chemistry:801.4 ; Radiation Measuring Instruments:944.7

2-s2.0-85131233315

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong Province,518055,China
2.State Key Laboratory of Electronic Thin Film and Integrated Devices,School of Electronic Science and Engineering (Chengdu) and Yangtze Delta Region Institute (Huzhou),University of Electronic Science and Technology of China,Chengdu,Sichuan Province,610054,China
3.Department of Electronic Engineering,Southern University of Science and Technology,Shenzhen,Guangdong Province,518055,China
4.College of Engineering Physics,Shenzhen Technology University (SZTU),Shenzhen, Pingshan,Lantian Road 3002,518118,China
5.Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices,Shenzhen,Guangdong Province,518055,China
6.Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,Guangdong Province,518055,China
7.Shenzhen Putai Technology Co.,Ltd,Shenzhen,518110,China
8.College of Materials Science & Engineering,Sichuan University,Chengdu,Sichuan,610065,China
9.Swiss Federal Laboratories for Materials Science and Technology (Empa),ETH Domain,Dübendorf,Überlandstrasse 129,CH-8600,Switzerland

Tang，Jun,Wan，Hujie,Chang，Libo,et al. Tunable Infrared Sensing Properties of MXenes Enabled by Intercalants[J]. Advanced Optical Materials,2022,10.

Tang，Jun.,Wan，Hujie.,Chang，Libo.,Hu，Bihua.,Cui，Shuyu.,...&Xu，Baomin.(2022).Tunable Infrared Sensing Properties of MXenes Enabled by Intercalants.Advanced Optical Materials,10.

Tang，Jun,et al."Tunable Infrared Sensing Properties of MXenes Enabled by Intercalants".Advanced Optical Materials 10(2022).