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引用次数: 0
摘要
人体体温是一项重要的生理指标,反映了新陈代谢和温度调节。具有高时间和空间分辨率的仿生温度传感器非常适合模拟人体皮肤的温度感知能力。本文提出了一种选择性过滤方法,用于制造无接缝 p-n 热电模块,该模块集成了 p 型和 n 型材料,界面障碍最小。这种结构能够实现快速响应、最小信号变化以及开路电压与温差之间稳健的线性关系,因此适合用作仿生物热敏电阻,以增强仿人机器人的智能感应能力。利用无接头 p-n 模块作为传感元件,开发了一种具有高时间和空间分辨率的智能热电传感系统。在时间热感应方面,该感应系统能及时有效地识别热源,响应时间快达 0.1 秒。此外,在空间热感应方面,该系统能可靠地检测每个测量区域(1 × 1 cm2)内离散区域的热刺激。这项研究为热电传感和生物仿热感受器应用中的温度传感器提供了一种有效的策略。
High Spatiotemporal Resolution Biomimetic Thermoreceptors Realizing by Jointless p-n Integration Thermoelectric Composites
Human body temperature is a critical physiological indicator, reflecting metabolism and temperature regulation. Biomimetic temperature sensors with high temporal and spatial resolution are highly desired to emulate human skin's temperature perception capabilities. Here, a selective filtration method is proposed to fabricate a jointless p-n thermoelectric module, integrating p-type and n-type materials with minimal interfacial barriers. The structure enables rapid response, minimal signal variation, and a robust linear relationship between open circuit voltage and temperature difference, making it suitable as a biomimetic thermoreceptor for enhancing humanoid robots with intelligent sensing capabilities. A smart thermoelectric sensing system with a high temporal and spatial resolution is developed using with jointless p-n module as the sensing element. In temporal thermal sensing, the sensing system can timely and effectively identify the heat source, with a fast response time of <0.1 s. In addition, in spatial thermal sensing, the system reliably detects thermal stimuli within discrete regions of each measuring area of <1 × 1 cm2. This study provides an effective strategy for temperature sensors in thermoelectric sensing and biomimetic thermoreceptor applications.
期刊介绍:
Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week.
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