Scientists have developed a graphene based microphone nearly 32 times more sensitive than microphones of standard nickel-based construction.
The researchers, based at the University of Belgrade, Serbia, created a vibrating membrane — the part of a condenser microphone which converts the sound to a current — from graphene, and were able to show up to 15 dB higher sensitivity compared to a commercial microphone, at frequencies up to 11 kHz.
The results are published today, 27th November 2015, in the journal 2D Mater ials.
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