Published December 14, 2015 | Version v1
Journal article Metadata-only

The emission wavelength dependent photoluminescence lifetime of the N-doped graphene quantum dots

Creators

  • 1. University of Chinese Academy of Sciences, Beijing 100049 (China)
  • 2. School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210 (China)
  • 3. Research Center of Quantum Macro-Phenomenon and Application, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210 (China)
  • 4. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 (China)

Description

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

Additional details

Identifiers

DOI
10.1063/1.4937923;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
107
Journal Issue
24
Journal Page Range
p. 241905-241905.4
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47056215
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CONFINEMENT; DOPED MATERIALS; DYES; FLUORESCENCE; GRAPHENE; LIFETIME; NITROGEN; PHOTOLUMINESCENCE; QUANTUM DOTS; SEMICONDUCTOR MATERIALS; TIME RESOLUTION; WAVELENGTHS
Descriptors DEC
CARBON; ELEMENTS; EMISSION; LUMINESCENCE; MATERIALS; NANOSTRUCTURES; NONMETALS; PHOTON EMISSION; RESOLUTION; TIMING PROPERTIES

Optional Information

Notes
(c) 2015 AIP Publishing LLC