title: Highly luminescent CdSe/ZnSe core-shell quantum dots of one-pot preparation in octadecene.
abstract: CdSe/ZnSe core-shell quantum dots were synthesized using a new one-pot procedure where the core was prepared in octadecene. A ZnSe shell around a CdSe nanoparticle was formed by the reaction of selenium-richness on the surfaces of CdSe nanoparticles with Zn2+ from the injected zinc stearate precursor. The optical properties, luminescence kinetics, and the effect of shell thickness of as-prepared QDs were studied, which verifies the high quality of the resulting QDs. The new approach is effective not only for preparing core/shell QDs, but also for reducing the complexity of synthesis, toxicity, and reagent cost.
authors.affiliation: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130033, China.
authors.forename: Qinghui
authors.initials: Q
authors.lastname: Zeng
authors.forename: Xianggui
authors.initials: X
authors.lastname: Kong
authors.forename: Youlin
authors.initials: Y
authors.lastname: Zhang
authors.forename: Hong
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000475:Alkenes; D019187:Cadmium Compounds / Q000737:chemistry*; D036103:Nanotechnology; D045663:Quantum Dots; D018036:Selenium Compounds / Q000737:chemistry*; D012997:Solvents; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D000475:Alkenes; D019187:Cadmium Compounds; D018036:Selenium Compounds; D012997:Solvents; D017967:Zinc Compounds; C058667:cadmium selenide; C109760:1-octadecene; C044696:zinc selenide