Making graphene luminescent by oxygen plasma treatment.
We show that strong photoluminescence (PL) can be induced in single-layer graphene using an oxygen plasma treatment. The PL is spatially uniform across the flakes and connected to elastic scattering spectra distinctly different from those of gapless pristine graphene. Oxygen plasma can be used to selectively convert the topmost layer when multilayer samples are treated.
Gokus
T
T
Chemistry and Biochemistry Department and CeNS, Ludwig-Maximilians-University of Munich, 80539 Munich, Germany.
Nair
R R
RR
Bonetti
A
A
Böhmler
M
M
Lombardo
A
A
Novoselov
K S
KS
Geim
A K
AK
Ferrari
A C
AC
Hartschuh
A
A
D003460:Crystallization / Q000379:methods*; D006108:Graphite / Q000737:chemistry*; D006358:Hot Temperature; D008163:Luminescent Measurements / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010100:Oxygen / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
D046911:Macromolecular Substances; D006108:Graphite; D010100:Oxygen