Publications by authors named "Tiedong Cheng"
Article Synopsis
- The study focuses on improving stretchable strain sensors by integrating a chiral auxetic metamaterial (CAM) into the elastomer substrate, addressing limitations in their performance due to substrate properties.
- This combination allows for a tunable isotropic Poisson's ratio, resulting in a significant increase in sensitivity (53-fold) and an ability to sense in multiple directions.
- The research demonstrates practical applications, such as monitoring human physiological signals and assisting in trampoline gymnastics training, showcasing the enhanced capabilities of the new strain sensor.
Double perovskite BiNiMnO (BNMO) thin films grown on p-Si (100) substrates with LaNiO (LNO) buffer layers were fabricated using chemical solution deposition. The crystal structure, surface topography, surface chemical state, ferroelectric, and current-voltage characteristics of BNMO thin films were investigated. The results show that the nanocrystalline BNMO thin films on p-Si substrates without and with LNO buffer layer are monoclinic phase, which have antiferroelectric-like properties.
View Article and Find Full Text PDFWe demonstrate a tunable longwave infrared photodetector with ultra-high sensitivity based on graphene surface plasmon polaritons controlled by ferroelectric domains. The simulated results show that the photodetector shows a tunable absorption peak, modulated by periodically polarized ferroelectric domains at the nanoscale, with an ultra-high responsivity up to 7.62 × 10 A W and a detectivity of ∼6.
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