Shell-isolated nanoparticle-enhanced fluorescence (SHINEF) of CdTe quantum dots

Authors :: Igor O. Osorio-Román
Ana Riveros
Monica Ramírez-Maureira
Paul J. G. Goulet
C Victor Vargas
Source :: Materials Chemistry and Physics. 151:351-356
Publication Year :: 2015
Publisher :: Elsevier BV, 2015.
Abstract: We report shell-isolated nanoparticle-enhanced fluorescence (SHINEF) of CdTe quantum dots. Enhanced spectra are obtained after Ag SHINs were spread onto homogenous CdTe quantum dot/polyelectrolyte layer-by-layer (LbL) films on quartz. The thin silica shell of the SHINs effectively isolates the Ag cores, preventing short-range quenching to the metal and enabling plasmon enhancement of the quantum dot fluorescence (ca. 35 fold).