Ultrathin, soft, radiative cooling interfaces for advanced thermal management in skin electronics

Jiyu Li, Yang Fu, Jingkun Zhou, Kuanming Yao, Xue Ma, Shouwei Gao, Zuankai Wang, Jian Guo Dai, Dangyuan Lei, Xinge Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

31 Citations (Scopus)

Abstract

Thermal management plays a notable role in electronics, especially for the emerging wearable and skin electronics, as the level of integration, multifunction, and miniaturization of such electronics is determined by thermal management. Here, we report a generic thermal management strategy by using an ultrathin, soft, radiative-cooling interface (USRI), which allows cooling down the temperature in skin electronics through both radiative and nonradiative heat transfer, achieving temperature reduction greater than 56°C. The light and intrinsically flexible nature of the USRI enables its use as a conformable sealing layer and hence can be readily integrated with skin electronics. Demonstrations include passive cooling down of Joule heat for flexible circuits, improving working efficiency for epidermal electronics, and stabling performance outputs for skin-interfaced wireless photoplethysmography sensors. These results offer an alternative pathway toward achieving effective thermal management in advanced skin-interfaced electronics for multifunctionally and wirelessly operated health care monitoring.

Original languageEnglish
Article numbereadg1837
JournalScience advances
Volume9
Issue number14
DOIs
Publication statusPublished - 7 Apr 2023

ASJC Scopus subject areas

  • General

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