It is known that graphene has no band gap and hence does not exhibit photoreponse. However, by band structure engineering, one can open up the band gap. In a recent report, researchers have obtained a high photoresponsivity of around 8 A/W in monolayer graphene by creating electron trapping centres. The results pave way for optoelectronic applications of graphene.
http://www.nature.com/ncomms/journal/v4/n5/abs/ncomms2830.html
http://www.nature.com/ncomms/journal/v4/n5/abs/ncomms2830.html
No comments:
Post a Comment