title: High-quality ZnS shells for CdSe nanoparticles: rapid microwave synthesis.
abstract: Using a domestic microwave oven and new, inexpensive precursors, a rapid and reliable synthesis of highly luminescent CdSe/ZnS NPs was developed. To evaluate the quality of our core/shell particles for varying shell thickness in comparison to that of CdSe/ZnS nanoparticles obtained commercially, the parameter fluorescence quantum yield is been used as well as a new, straightforward, thiophenol-based shell-quality test as a tool to ensure a dense ZnS shell without holes and cracks, which is a prerequisite for high luminescence and stability.
authors.affiliation: Laboratory for Nanosciences, Freiburg Material Research Centre (FMF), Albert Ludwig University Freiburg, Stefan-Meier Strasse 21, 79104 Freiburg, Germany.
authors.forename: Jan
authors.initials: J
authors.lastname: Ziegler
authors.forename: Alexei
authors.initials: A
authors.lastname: Merkulov
authors.forename: Markus
authors.initials: M
authors.lastname: Grabolle
authors.forename: Ute
authors.initials: U
authors.lastname: Resch-Genger
authors.forename: Thomas
authors.initials: T
authors.lastname: Nann
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D049408:Luminescent Agents / Q000138:chemical synthesis*; D008872:Microwaves; D053758:Nanoparticles / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry; D018038:Sodium Selenite / Q000737:chemistry*; D013438:Sulfhydryl Compounds / Q000737:chemistry; D013440:Sulfides / Q000737:chemistry*; D013997:Time Factors; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D049408:Luminescent Agents; D010636:Phenols; D013438:Sulfhydryl Compounds; D013440:Sulfides; D017967:Zinc Compounds; C042983:thiophenol; D018038:Sodium Selenite; C031238:zinc sulfide