材料科学
热电效应
电子设备和系统的热管理
可穿戴计算机
相变材料
互连
可穿戴技术
散热片
液态金属
热电材料
热电冷却
机械工程
工程物理
相变
计算机科学
热导率
复合材料
嵌入式系统
工程类
物理
热力学
计算机网络
作者
Wenxing Huo,Zijie Xia,Gao Yu,Rui Guo,Xian Huang
标识
DOI:10.1021/acsami.3c05418
摘要
Flexible thermoelectric (TE) devices offer great potential for wearable thermal management and self-powered systems, but heat dissipation and electrical interconnection remain key challenges. In this study, we address these issues by integrating flexible TE devices with phase-change material (PCM) heatsinks and stretchable semi-liquid metal (semi-LM) interconnectors. The effectiveness of PCMs with varying melting points for temperature regulation in different environmental conditions is demonstrated, delivering cooling effects exceeding 10 °C. Furthermore, the utilization of semi-LMs instead of LMs enables excellent stretchability and efficient heat dissipation. Moreover, the TE devices generate power with a density of 7.3 μW/cm2 at an ambient temperature of 22 °C, making it an ideal power source for a wearable self-powered sensing system. Successful integration into garments and armbands confirms the practicality and adaptability of these flexible thermoelectric devices, establishing them as critical components for future wearables with superior resilience to daily wear and tear.
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