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Updated: Aug 20, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Tunable photoluminescence of MoS2 quantum dots passivated by different functional groups
Xingqun Zhu1, Junxiang Xiang1, Jing Li1
1Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Synergetic Innovation Center of Quantum Information Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
Abstract:
Recently, transitional metal dichalcogenides quantum dots have attracted much interest as a potential candidate for the application of fluorescent materials. However, little work has been done on tuning their band gap by varying functional groups. Here, we report a band-gap tunability of 1eV in the MoS2 quantum dots (QDs) modified by different functional groups. In our results, it has also been confirmed that a tunable band gap in the MoS2 QDs can be achieved by monotonically varying the concentration of a functional group. A mechanism has also been proposed to explain the enhanced photoluminescence behaviors in the functionalized MoS2 QDs. Our work provides a general guideline to develop other semiconducting QDs to be future impressive fluorescent materials.
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