Investigating thermal properties of 2D non-layered material using a NEMS-based 2-DOF approach towards ultrahigh-performance bolometer  

作　　者：Luming Wang Song Wu Zejuan Zhang Jiankai Zhu Luwei Zou Bo Xu Jiaqi Wu Junzhi Zhu Fei Xiao Chenyin Jiao Shenghai Pei Jiaze Qin Yu Zhou Juan Xia Zenghui Wang 

机构地区：[1]Institute of Fundamental and Frontier Sciences,University of Electronic Science and Technology of China,Chengdu 610054,China [2]School of Physics,Hunan Key Laboratory of Nanophotonics and Devices,Central South University,Changsha 410083,China [3]State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 611731,China

出　　处：《National Science Review》2024年第10期188-196,共9页国家科学评论（英文版）

基　　金：supported by the National Key R&D Program of China(2022YFB3203600);the National Natural Science Foundation of China(T2325007,62450003,62250073,U21A20459,62004026,61774029);the Sichuan Science and Technology Program(2021JDTD0028);the China Postdoctoral Science Foundation(GZB20230107,GZB20240109);the Natural Science Foundation of Sichuan Province(2024NSFSC1430 and 2024NS-FSC1408);the Science and Technology Innovation Program of Hunan Province(“HuXiang Young Talents”,2021RC3021).

摘　　要：Two-dimensional(2D)non-layered materials in many aspects differ from their layered counterparts,and the exploration of their physical properties has produced many intriguing findings.However,due to challenges in applying existing experimental techniques to such nanoscale samples,their thermal properties have remained largely uncharacterized,hindering further exploration and device application using this promising material system.Here,we demonstrate an experimental study of thermal conduction inβ-In_(2)S_(3),a typical non-layered 2D material,using a resonant nanoelectromechanical systems(NEMS)platform.We devise a new two-degrees-of-freedom technique,more responsive and sensitive than Raman spectroscopy,to simultaneously determine both the thermal conductivity to be 3.7 W m^(−1)K^(−1)and its interfacial thermal conductance with SiO_(2)as 6.4 MW m^(−2)K^(−1).Leveraging such unique thermal properties,we further demonstrate a record-high power-to-frequenc y responsiv ity of−447 ppm/μW inβ-In_(2)S_(3)NEMS sensors,the best among drumhead NEMS-based bolometers.Our findings offer an effective approach for studying thermal properties and exploring potential thermal applications of 2D non-layered materials.

关 键 词：thermal properties non-layered material resonant NEMS nanoscale motion BOLOMETER 

分 类 号：TB33[一般工业技术—材料科学与工程]