Microsecond-Scale Transient Thermal Sensing Enabled by Flexible Mo1-xWxS2 Alloys

被引：8

作者：

Li, Weiwei ^{[1
,2
,3
,5
]}

Kong, Lingyan ^{[1
,2
]}

Xu, Manzhang ^{[1
,2
]}

Gao, Jiuwei ^{[1
,2
]}

Luo, Lei ^{[1
,2
]}

Li, Yingzhe ^{[1
,2
]}

Wang, Kexin ^{[1
,2
]}

Zhou, Yilin ^{[1
,2
]}

Li, Lei ^{[1
,2
]}

Zhang, Xiaoshan ^{[1
,2
]}

Zhao, Ruoqing ^{[1
,2
]}

Chen, Mengdi ^{[1
,2
]}

Yan, Yuting ^{[1
,2
]}

Luo, Xiaoguang ^{[1
,2
]}

Dai, Zhaohe ^{[8
]}

Zheng, Lu ^{[1
,2
]}

Wang, Xuewen ^{[1
,2
,3
,5
]}

Huang, Wei ^{[1
,2
,3
,4
,5
,6
,7
]}

机构：

[1] Northwestern Polytech Univ, Frontiers Sci Ctr Flexible Elect FSCFE, Xian 710072, Peoples R China

[2] Northwestern Polytech Univ, Shaanxi Inst Flexible Elect SIFE, Xian 710072, Peoples R China

[3] Northwestern Polytech Univ, Shaanxi Key Lab Flexible Elect KLoFE, Xian 710072, Peoples R China

[4] Northwestern Polytech Univ, MIIT Key Lab Flexible Elect KLoFE, Xian 710072, Peoples R China

[5] Nanjing Univ Posts & Telecommun, Inst Adv Mat IAM, State Key Lab Organ Elect & Informat Displays, Nanjing 210023, Peoples R China

[6] Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLoFE, Nanjing 211800, Peoples R China

[7] Nanjing Tech Univ NanjingTech, Inst Adv Mat IAM, Nanjing 211800, Peoples R China

[8] Peking Univ, Coll Engn, Dept Mech & Engn Sci, Beijing 100871, Peoples R China

来源：

RESEARCH | 2024年 / 7卷

基金：

中国国家自然科学基金;

关键词：

TEMPERATURE SENSORS; TRANSPARENT;

D O I：

10.34133/research.0452

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Real-time thermal sensing through flexible temperature sensors in extreme environments is critically essential for precisely monitoring chemical reactions, propellant combustions, and metallurgy processes. However, despite their low response speed, most existing thermal sensors and related sensing materials will degrade or even lose their sensing performances at either high or low temperatures. Achieving a microsecond response time over an ultrawide temperature range remains challenging. Here, we design a flexible temperature sensor that employs ultrathin and consecutive Mo1-xWxS2 alloy films constructed via inkjet printing and a thermal annealing strategy. The sensing elements exhibit a broad work range (20 to 823 K on polyimide and 1,073 K on flexible mica) and a record-low response time (about 30 mu s). These properties enable the sensors to detect instantaneous temperature variations induced by contact with liquid nitrogen, water droplets, and flames. Furthermore, a thermal sensing array offers the spatial mapping of arbitrary shapes, heat conduction, and cold traces even under bending deformation. This approach paves the way for designing unique sensitive materials and flexible sensors for transient sensing under harsh conditions.

引用

页数：13