Title of article
High fluorescence quantum efficiency of CdSe/ZnS quantum dots embedded in GPTS/TEOS-derived organic/silica hybrid colloids
Author/Authors
Alencar، نويسنده , , Lorena D.S. and Pilla، نويسنده , , Viviane and Andrade، نويسنده , , Acلcio A. and Donatti، نويسنده , , Dario A. and Vollet، نويسنده , , Dimas R. and De Vicente، نويسنده , , Fلbio S.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2014
Pages
5
From page
63
To page
67
Abstract
The thermo-optical properties of CdSe/ZnS core–shell quantum dots (QDs) embedded in organic/silica hybrid colloids (organic/silica sols) were measured using the thermal lens (TL) technique. GPTS/TEOS-derived organic/silica hybrid colloids were prepared by a sol–gel method from the hydrolysis reaction of 3-glycidoxypropyltrimethoxysilane (GPTS) and tetraethylorthosilicate (TEOS) alkoxides. TL transient measurements were performed to study the effect of the CdSe/ZnS QDs (with three different sizes ∼ 2.4, 2.9 and 4.4 nm) embedded in GPTS/TEOS-derived organic/silica sols. The thermal diffusivity, the fraction thermal load and the radiative quantum efficiency (η) were determined. Fluorescence measurements corroborate the TL results and high η values were obtained.
Journal title
Chemical Physics Letters
Serial Year
2014
Journal title
Chemical Physics Letters
Record number
1936471
Link To Document