Premium
Facile Synthetic Method for Pristine Graphene Quantum Dots and Graphene Oxide Quantum Dots: Origin of Blue and Green Luminescence
Author(s) -
Liu Fei,
Jang MinHo,
Ha Hyun Dong,
Kim JeHyung,
Cho YongHoon,
Seo Tae Seok
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201300233
Subject(s) - graphene , quantum dot , materials science , exfoliation joint , photoluminescence , oxide , luminescence , nanotechnology , monolayer , nanoparticle , graphite , graphene oxide paper , graphene quantum dot , optoelectronics , composite material , metallurgy
Pristine graphene quantum dots and graphene oxide quantum dots are synthesized by chemical exfoliation from the graphite nanoparticles with high uniformity in terms of shape (circle), size (less than 4 nm), and thickness (monolayer). The origin of the blue and green photoluminescence of GQDs and GOQDs is attributed to intrinsic and extrinsic energy states, respectively.