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An Optoelectronic Thermometer Based on Microscale Infrared-to-Visible Conversion Devices

Engineering and Technology

An Optoelectronic Thermometer Based on Microscale Infrared-to-Visible Conversion Devices

H. Ding, G. Lv, et al.

Discover an innovative optoelectronic thermometer that leverages infrared-to-visible upconversion to excel in thermal detection. Developed by a dedicated team of researchers, this cutting-edge technology enhances real-time monitoring of temperature variations in dynamic environments and deep brain applications.

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Playback language: English
Abstract
This paper presents an optoelectronic thermometer utilizing infrared-to-visible upconversion, achieved through integrated light receiving and emission devices. Microscale thin-film devices exhibit temperature-dependent light emission with a 1.5% °C⁻¹ intensity change and a 0.18 nm °C⁻¹ spectral shift. The sensing mechanism is attributed to temperature-dependent optoelectronic properties of the semiconductor band structure and circuit operation. Spatially resolved temperature mapping is demonstrated using patterned device arrays. *In vitro* and *in vivo* experiments using integrated fiber-optic sensors showcase real-time thermal detection in dynamic human activity and the deep brain of animals.
Publisher
Light: Science & Applications
Published On
Jan 31, 2022
Authors
He Ding, Guoqing Lv, Xue Cai, Junyu Chen, Ziyi Cheng, Yanxiu Peng, Guo Tang, Zhao Shi, Yang Xie, Xin Fu, Lan Yin, Jian Yang, Yongtian Wang, Xing Sheng
Tags
optoelectronic thermometer
infrared-to-visible upconversion
temperature sensing
microscale devices
real-time thermal detection
spatially resolved mapping

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