Journal
APPLIED PHYSICS LETTERS
Volume 107, Issue 24, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4937923
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Funding
- Strategic Leading Science and Technology Programme (Class B) of the Chinese Academy of Sciences [XDB01010200]
- Science and Technology Commission of Shanghai Municipality [14DZ1203700, 14ZR1444700]
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Aromatic nitrogen doped graphene quantum dots were investigated by steady-state and time-resolved photoluminescence (PL) techniques. The PL lifetime was found to be dependent on the emission wavelength and coincident with the PL spectrum, which is different from most semiconductor quantum dots and fluorescent dyes. This result shows the synergy and competition between the quantum confinement effect and edge functional groups, which may have the potential to guide the synthesis and expand the applications of graphene quantum dots. (C) 2015 AIP Publishing LLC.
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