Graphene, graphene quantum dots and their applications in optoelectronics. Issue 5 (October 2015)

• Record Type: Journal Article
• Authors: Jin, Zehua; Owour, Peter; Lei, Sidong; Ge, Liehui
• Is Part Of: Current opinion in colloid & interface science. Volume 20:Issue 5/6(2015)
• Page Start: 439
• Page End: 453
• Publication Date: 2015-10
• Subjects: Graphene -- Graphene quantum dots -- Optoelectronics; Surface chemistry -- Periodicals; Colloids -- Periodicals; 541.33
• DOI: 10.1016/j.cocis.2015.11.007
• Languages: English
• ISSNs: 1359-0294

Abstract

Abstract: The discovery of graphene has generated enormous interest among scientists in various disciplines. A strong focus of graphene research addresses graphene's carrier physics and its interactions with light. Having an ultra-high carrier mobility and a linear dispersion band structure, graphene has been predicted and confirmed as a great candidate for optoelectrical applications. However, adding a bandgap to graphene has become an increasing need in order to extend graphene's potential. The synthesis of graphene quantum structures, such as graphene quantum dots, has become a popular topic in recent years, making the use of graphene more versatile. A bandgap in graphene quantum dots exists due to quantum confinement and edge effects. Such a bandgap modifies graphene's carrier behaviors, and can lead to versatile applications in optoelectronics. This article provides a review on the physical properties of graphene and graphene quantum dots, as well as on their applications towards photodection, photovoltaics, light-emitting diodes (LEDs) and plasmonics.