We make thin films of 2D materials produced with liquid phase exfoliation followed by Langmuir-Blodgett assembly. Such a production method is a good option for large area low cost transparent conductors and sensors on flexible substrates for wearable electronics. We are actively investigating the sensing performance of these materials that include graphene, PtSe2, MoS2 and hBN, on the route to practical devices. These films are excellent sensors of trace gases, humidity and strain.
Illustration: Wearable graphene multisensory device, measuring gas type and concentration, temperature, humidity levels and strain.
- T. Tomašević-Ilić et al, Reducing sheet resistance of self-assembled transparent graphene films by defect patching and doping with UV/ozone treatment, Applied Surface Science 458, 446 (2018).
- A. Matković et al, Enhanced sheet conductivity of Langmuir–Blodgett assembled graphene thin films by chemical doping, 2D Materials 3, 015002 (2016).