冯倩等在Applied Physics Letters上发表学术论文

发布时间: 2013-09-21 访问次数: 507


Qian Feng, Qingqi Cao, Ming Li, Fuchi Liu, Nujiang Tang, and Youwei Du, Synthesis and photoluminescence of fluorinated grapheme quantum dots, Applied Physics Letters 102, 013111 (2013).


摘要:Fluorinated graphene quantum dots (F-GQDs) were synthesized by cutting fluorinated grapheme through a hydrothermal approach. The F-GQDs with oxygen-rich functional groups have a F/C atomic ratio of ca. 23.68% and diameter of 1-7 nm. The photoluminescence (PL) properties of the F-GQDs were investigated. The results showed that besides exhibiting bright blue PL, the F-GQDs display a clear upconversion PL.