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Robust self-gated-carriers enabling highly sensitive wearable temperature sensors
Applied Physics Reviews ( IF 15.0 ) Pub Date : 2021-09-16 , DOI: 10.1063/5.0059204
Hongjian Zhang 1 , Kui Xu 2 , Yufei Lu 1 , Haodong Liu 1 , Wenqi Han 1 , Yang Zhao 1 , Ruizi Li 1 , Zhentao Nie 1 , Feng Xu 1 , Jixin Zhu 2 , Wei Huang 1, 2
Affiliation  

Wearable temperature sensors can obtain and convey accurate temperature information on the human body and objects. However, most reported wearable temperature sensors suffer from limitations, such as high fabrication cost and low working efficiency, sensing performance, and scalability, which impede their broad application in wearable fields. In this work, a new type of metal–semiconductor–metal (MSM) self-gated device based on NiO/Ni heterostructure frameworks is fabricated and employed in wearable high-performance temperature sensors. The MSM self-gated device is prepared via a facile and controllable in situ oxidation method and demonstrates efficient charge transportation, excellent thermal conductivity [3.74 W (m K−1)], and high thermal diffusivity (9.39 mm2 s−1). The obtained temperature sensors exhibit high sensitivity (−5.04% °C−1), wide working range (−15 to 80 °C), and excellent stability (more than three months) and have been applied to monitor the temperature of objects and the human body. In particular, a flexible temperature sensor array is fabricated to measure the spatially resolved temperature distribution. The array demonstrates the bright application prospects of the sensors in the fields of human–machine interfaces and intelligent medical systems.

中文翻译:

强大的自门控载体可实现高度灵敏的可穿戴温度传感器

可穿戴温度传感器可以获取和传达人体和物体的准确温度信息。然而,大多数报道的可穿戴温度传感器都存在制造成本高、工作效率低、传感性能和可扩展性低等局限性,阻碍了它们在可穿戴领域的广泛应用。在这项工作中,制造了一种基于 NiO/Ni 异质结构框架的新型金属 - 半导体 - 金属(MSM)自门控器件,并用于可穿戴高性能温度传感器。MSM 自门控器件是通过一种简便且可控的原位氧化方法制备的,并展示了高效的电荷传输、出色的导热性 [3.74 W (m K -1 )] 和高热扩散率 (9.39 mm 2s -1 )。获得的温度传感器具有高灵敏度(-5.04% °C -1)、宽工作范围(-15 至 80 °C)和优异的稳定性(超过三个月),并已应用于监测物体和物体的温度。人体。特别是,制造了一个灵活的温度传感器阵列来测量空间分辨的温度分布。该阵列展示了传感器在人机界面和智能医疗系统领域的广阔应用前景。
更新日期:2021-09-30
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