@article{Zhang2019, 
author = {Ding Zhang and Yiding Song and Lu Ping and Suwen Xu and De Yang and Yuanhao Wang and Ya Yang},
title = {Photo-thermoelectric effect induced electricity in stretchable graphene-polymer nanocomposites for ultrasensitive strain sensing},
year = {2019},
journal = {Nano Research},
volume = {12},
number = {12},
pages = {2982-2987},
keywords = {stretchable, strain sensor, graphene-polymer nanocomposites, photo-thermoelectric effect, implantable},
url = {https://www.sciopen.com/article/10.1007/s12274-019-2541-2},
doi = {10.1007/s12274-019-2541-2},
abstract = {Stretchable strain sensors play an increasingly important role in artificial intelligent devices. However, high-performance strain sensors have been slowly developed owing to the harsh requirement of self-powered function, long cycle life and high resolution. Here, we report a self-powered stretchable graphene-ecoflex composite strain sensor based on photo-thermoelectric (PTE) effect induced electricity. The device exhibits a high strain sensitivity of -0.056 ln(nA)/% with strains ranged from 0% to 20% under 980 nm light illumination, where the strain sensitivity can be found to increase with increasing light intensity. The strain sensor maintains outstanding dynamic stability under periodic strains ranged from 0 to 100% in 100 cycles. The sensing resolution can be as high as 0.5% with both the response and recovery time of less than 0.6 s. It can precisely monitor human joint motions and stretchable strains by implanting the device in pork.}
}