Affordable Access

deepdyve-link
Publisher Website

Tunable photoluminescence of MoS2 quantum dots passivated by different functional groups.

Authors
  • Zhu, Xingqun1
  • Xiang, Junxiang1
  • Li, Jing1
  • Feng, Chao1
  • Liu, Ping1
  • Xiang, Bin2
  • 1 Department 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. , (China)
  • 2 Department 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; Photonic Technology R&D Center, Quanzhou Normal University, No 398, Donghai Main Street, Quanzhou, Fujian 362000, China. Electronic address: [email protected] , (China)
Type
Published Article
Journal
Journal of Colloid and Interface Science
Publisher
Elsevier
Publication Date
Feb 01, 2018
Volume
511
Pages
209–214
Identifiers
DOI: 10.1016/j.jcis.2017.09.118
PMID: 29024861
Source
Medline
License
Unknown

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.

Report this publication

Statistics

Seen <100 times