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https://doi.org/10.1002/adfm.202201292
Copy DOIJournal: Advanced Functional Materials | Publication Date: Mar 24, 2022 |
Citations: 58 |
AbstractWith perceiving and converting mechanical stimuli into electrical and visual readouts simultaneously, electronic skin endows a safe and effective interaction between human and environment. However, both weak optical signals and low spatial resolution are still challenging the potential application of electronic skin in human–machine information interaction (HMI). Herein, a novel high‐brightness, high‐resolution, and flexible triboelectrification‐induced electroluminescence (TIEL) skin is developed for real‐time imaging and HMI. The TIEL skin composed of ZnS:Cu‐embedded polyvinylidene‐fluoride‐co‐hexafluoropropylene (ZEPH) film can convert gentle touch stimuli into real‐time light emission at trigger pressure threshold as low as 1.25 kPa. Moreover, collected by fiber optic spectrometer, the brightness of TIEL is 2.5 times as strong as an LED lighted up by 2 V power supply. Meanwhile, the bright TIEL emission can also be observed by the naked eyes in the daytime. Furthermore, a spatial resolution of less than 220 µm can be achieved in real‐time TIEL imaging. Additionally, by integrating the ZEPH films with the microcontroller, a wearable optical–electrical dual‐output‐based wireless communication system is constructed to control the trajectory of a miniature car. The unique operation of the desired TIEL with simple fabrication demonstrates a great potential in trajectory tracking, skin prosthesis, robotics, and advanced HMI.
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