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SINGAPOREAN researchers from Nanyang Technological University have developed a new camera sensor made from graphene which is a thousand times more sensitive to light than current sensors.
The new graphene sensor is believed to be the first to be able to detect broad spectrum light, from the visible to mid-infrared, with high photoresponse or sensitivity. This allows it to be used in a range of cameras, from infrared to satellite imaging and commercial imaging devices.
Compared to conventional sensors, the graphene sensor is said to be 1000 more sensitive to light, uses 10 times less energy, and will be cheaper when scaled to commercial levels.
To create the sensor, the researchers fabricated a graphene sheet into novel nano structures. These structures retain light-generated electron particles for longer, resulting in a much stronger electrical signal from the same amount of light.
According to the researchers, the sensor technology is compatible with current industry practices. Manufacturers can continue using the CMOS process, but replace the base material with the nano-structured graphene material to produce the graphene-based sensors.