title: Preparation of carbon quantum dots with tunable photoluminescence by rapid laser passivation in ordinary organic solvents.
abstract: A simple approach to prepare carbon quantum dots is presented in this communication by laser rapid passivation of nano carbon particles in ordinary organic solvent. The as-prepared carbon dots exhibited visible, tunable and stable photoluminescence (PL). XPS analysis showed that the increased oxygen concentration might be concerned with the origin of PL.
authors.affiliation: National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
authors.forename: Xiangyou
authors.initials: X
authors.lastname: Li
authors.forename: Hongqiang
authors.initials: H
authors.lastname: Wang
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Shimizu
authors.forename: Alexander
authors.initials: A
authors.lastname: Pyatenko
authors.forename: Kenji
authors.initials: K
authors.lastname: Kawaguchi
authors.forename: Naoto
authors.initials: N
authors.lastname: Koshizaki
mesh_terms: D002244:Carbon / Q000737:chemistry*; D004867:Equipment Design; D007834:Lasers; D049449:Luminescence; D036103:Nanotechnology / Q000191:economics / Q000295:instrumentation / Q000379:methods*; D010777:Photochemistry; D045663:Quantum Dots; D012997:Solvents
chemical_list: D012997:Solvents; D002244:Carbon