期刊
ADVANCED HEALTHCARE MATERIALS
卷 7, 期 12, 页码 -出版社
WILEY
DOI: 10.1002/adhm.201800074
关键词
fiber-based electronic devices; freestanding rGO fibers; healthcare monitoring; wearable electronics; wearable temperature sensors
资金
- GRRC program of Gyeonggi province [GRRC Sungkyunkwan] [2017-B04]
- Korean Research Fellowship Program through National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2015H1D3A1062350]
- National Research Foundation of Korea (NRF) - Korean government [2016M3A7B4910458, 2017M3C1A9069591]
Fiber-based sensors integrated on textiles or clothing systems are required for the next generation of wearable electronic platforms. Fiber-based physical sensors are developed, but the development of fiber-based temperature sensors is still limited. Herein, a new approach to develop wearable temperature sensors that use freestanding single reduction graphene oxide (rGO) fiber is proposed. A freestanding and wearable temperature-responsive rGO fiber with tunable thermal index is obtained using simple wet spinning and a controlled graphene oxide reduction time. The freestanding fiber-based temperature sensor shows high responsivity, fast response time (7 s), and good recovery time (20 s) to temperature. It also maintains its response under an applied mechanical deformation. The fiber device fabricated by means of a simple process is easily integrated into fabric such as socks or undershirts and can be worn by a person to monitor the temperature of the environment and skin temperature without interference during movement and various activities. These results demonstrate that the freestanding fiber-based temperature sensor has great potential for fiber-based wearable electronic platforms. It is also promising for applications in healthcare and biomedical monitoring.
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