graphene microphone Technology 

New Graphene Microphone Outperforms Nickel

By Kate Stone Scientists have developed a graphene microphone that is nearly 32 times more sensitive than ordinary microphones made from nickel. Using graphene, the research team at the University of Belgrade, Serbia, created a vibrating membrane – the part of a microphone that converts the sound to a current.  At frequencies up to 11 kHz, the microphone was able to achieve 15 dB higher sensitivity compared to a commercial microphone. “We wanted to show that graphene, although a relatively new material, has potential for real world applications,” explains Marko…

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