• DOI:10.1021/acsnano.7b02182
• Corpus ID: 19751409

Graphene Electronic Tattoo Sensors.

@article{KabiriAmeri2017GrapheneET,
  title={Graphene Electronic Tattoo Sensors.},
  author={Shideh Kabiri Ameri and Rebecca Ho and Hongwoo Jang and Li Tao and Youhua Wang and Liu Wang and David M. Schnyer and Deji Akinwande and Nanshu Lu},
  journal={ACS nano},
  year={2017},
  volume={11 8},
  pages={
          7634-7641
        }
}

• Shideh Kabiri Ameri, R. Ho, +6 authors N. Lu
• Published 27 July 2017
• Engineering
• ACS nano

Tattoo-like epidermal sensors are an emerging class of truly wearable electronics, owing to their thinness and softness. While most of them are based on thin metal films, a silicon membrane, or nanoparticle-based printable inks, we report sub-micrometer thick, multimodal electronic tattoo sensors that are made of graphene. The graphene electronic tattoo (GET) is designed as filamentary serpentines and fabricated by a cost- and time-effective "wet transfer, dry patterning" method. It has a total thickness of 463 ± 30 nm, an optical transparency of ∼85%, and a stretchability of more than 40%. The GET can be directly laminated on human skin just like a temporary tattoo and can fully conform to the microscopic morphology of the surface of skin via just van der Waals forces. The open-mesh structure of the GET makes it breathable and its stiffness negligible. A bare GET is able to stay attached to skin for several hours without fracture or delamination. With liquid bandage coverage, a GET may stay functional on the skin for up to several days. As a dry electrode, GET-skin interface impedance is on par with medically used silver/silver-chloride (Ag/AgCl) gel electrodes, while offering superior comfort, mobility, and reliability. GET has been successfully applied to measure electrocardiogram (ECG), electromyogram (EMG), electroencephalogram (EEG), skin temperature, and skin hydration.