Researchers from the University of Cambridge developed a high performance room temperature graphene-based mid-infrared photodetectors. So-called "bolometers" usually feature a very low temperature coefficient of resistance (TCR) - between 2% and 4% / K.

Graphene room temperature MIR pyroelectric bolometer image

The unique properties of graphene, coupled with a novel device concept enabled the researchers to achieve ultra high performance - a TCR as high as 900%/K. The researchers hope that this device could in the future be used in astronomy, medicine imaging, automotive and even smartphone infra-red cameras.

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