28/09/2014 - Sunday SCIENCE AND TECHNOLOGY: NEW CAMERA SENSOR ELIMINATES NEED FOR FLASH DEVELOPED BY: Nanyang Technological University (NTU), Singapore MAJOR COMPONENT: Graphene INVENTOR: Wang Qijie SUMMARY: No flash? No problem. A new imaging sensor could soon make it possible for photographers to take clear, sharp photos, even in dim lighting. Created by a team of researchers at Nanyang Technological University (NTU) in Singapore, the new sensor is highly sensitive to both visible and infrared light, which means it could be used in everything from the family Nikon to surveillance and satellite cameras. The sensor, which is 1,000 times more sensitive to light than the imaging sensors of most of todays cameras, gets this high photo response from its innovative structure. Its made of graphene, a super strong carbon compound with a honeycomb structure that is as flexible as rubber, more conductive than silicon and which resists heat better than a diamond. Graphene, which is a one atom-thick layer of the mineral graphite, has already earned a reputation as the building material of the future. Andre Geim and Konstantin Novoselov took home the Nobel Prize in physics in 2010 for their work with the compound. The inventor of the new sensor, Wang Qijie, an assistant professor at NTUs School of Electrical and Electronic Engineering, said this is the first time that a broad-spectrum, high photosensitive sensor has been made using pure graphene. FEW LINES FROM THE INVENTOR’S TALK: We have shown that it is now possible to create cheap, sensitive and flexile sensors from graphene alone, said Wang. We expect our innovation will have great impact not only on the consumer imaging industry, but also in satellite imaging and communication industries, as well as the mid-infrared applications.
Posted on: Mon, 29 Sep 2014 04:47:16 +0000
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