Synthesis of high-quality N-acetyl-L-cysteine-capped CdTe quantum dots by hydrothermal route and the characterization through MALDI-TOF mass spectrometry

Jiaotian Li, Tianming Yang, Wing Hong CHAN, Martin M F CHOI, Dan Zhao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

High-quality water-soluble N-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.

Original languageEnglish
Pages (from-to)19175-19181
Number of pages7
JournalJournal of Physical Chemistry C
Volume117
Issue number37
DOIs
Publication statusPublished - 19 Sep 2013

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Fingerprint

Dive into the research topics of 'Synthesis of high-quality N-acetyl-L-cysteine-capped CdTe quantum dots by hydrothermal route and the characterization through MALDI-TOF mass spectrometry'. Together they form a unique fingerprint.

Cite this