摘要
Flexible electronics are attracting widespread attention due to their potential applications in wearable health monitoring and care systems[1],holding great promise in the internet of things(IoT),a fundamental concept in which devices and objects can be interconnected to form extensive networks[2].Especially,the rapid developments of various flexible humidity sensors have broadened the scope of flexible electronics for novel applications in the IoT,such as noncontact and realtime sensation,electronic skin(e-skin),telemedicine monitoring,and wearable electronic systems(Fig.1)[2–4].
