Tuning photoluminescence of reduced graphene oxide quantum dots from blue to purple

Journal Article · Mon Apr 28 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4874180· OSTI ID:22273514

Liu, Fuchi ^[1]; Tang, Tao; Feng, Qian; Li, Ming; Liu, Yuan; Tang, Nujiang; Zhong, Wei; Du, Youwei ^[1]

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1. Physics Department and Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093 (China)

Reduced graphene oxide quantum dots (rGOQDs) were synthesized by annealing GOQDs in H{sub 2} atmosphere. The photoluminescence (PL) properties of GOQDs and the rGOQDs samples were investigated. The results showed that compared to GOQDs, a blue to purple tunable PL of rGOQDs can be obtained by regulating the annealing temperature. The increase fraction of the newly formed isolated sp{sup 2} clusters may be responsible for the observed tunable PL.

• OSTI ID: 22273514
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 16; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ANNEALING
CARBON OXIDES
COMPARATIVE EVALUATIONS
GRAPHENE
HYDROGEN
PHOTOLUMINESCENCE
QUANTUM DOTS