Researchers develop suspended graphene-based NEMS accelerometers with direct electrical readout
Atomically thin suspended graphene can be used as NEMS transducers for ultra-small and high-performance sensors thanks to its excellent mechanical and electrical properties. Most applications of suspended graphene in NEMS devices are limited to pressure sensors, resonators, switches, etc. Graphene-based NEMS accelerometers have rarely been reported, with limitations such as mechanical robustness, life span and device yield, thereby limiting their practical applications.
Researchers from the Beijing Institute of Technology and North University of China have developed piezoresistive graphene-based NEMS accelerometers with high manufacturing yield, excellent mechanical robustness and stability, and long life span, in which the width of trenches for suspending graphene membranes was only 1 µm and fully-clamped suspended double-layer graphene membranes with an attached SiO2/Si proof mass was used as acceleration transducer.
Source: https://www.graphene-info.com/researchers-develop-suspended-graphene-based-nems-accelerometers-direct
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