1 research outputs found
Synthesis of High-Quality <i>N</i>‑Acetyl‑l‑Cysteine-Capped CdTe Quantum Dots by Hydrothermal Route and the Characterization through MALDI-TOF Mass Spectrometry
High-quality
water-soluble <i>N</i>-acetyl-l-cysteine-capped
CdTe quantum dots (QDs) have been synthesized through
a hydrothermal route, which allows a rapid preparation time (<1
h) and tunable emitting peaks (from 535 to 650 nm) with excellent
quantum yields as high as 45%. The influences of different synthetic
parameters upon the growth kinetics and the quantum yields of prepared
QDs have been systematically studied. The electron diffraction spectroscopy
technique was employed to examine the impacts of the molar ratio of
reactants and reaction time on the element compositions of prepared
QDs. In particular, matrix-assisted laser desorption ionization time-of-flight
mass spectrometry has been used for the first time to systematically
study the sizes of CdTe QDs