title: Auger recombination dynamics in hybrid silica-coated CdTe nanocrystals.
abstract: CdTe quantum dots coated with a silica layer containing CdS-like clusters exhibit intense photoluminescence and a spectral red-shift. Biexciton Auger recombination of these particles is examined by transient absorption spectroscopy. A lengthening of the Auger recombination lifetime by a factor of ∼3.5 in the presence of the CdS-like clusters is observed and may contribute to the good PL properties of these nanostructures.
authors.affiliation: Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan.
authors.forename: Gabriel
authors.initials: G
authors.lastname: Sagarzazu
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Norio
authors.initials: N
authors.lastname: Murase
authors.forename: Ping
authors.initials: P
authors.lastname: Yang
authors.forename: Naoto
authors.initials: N
authors.lastname: Tamai
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D004583:Electrons; D045663:Quantum Dots; D012822:Silicon Dioxide / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013691:Tellurium / Q000737:chemistry*
chemical_list: D019187:Cadmium Compounds; D012822:Silicon Dioxide; D013691:Tellurium; C028337:cadmium telluride