Optically active charge transfer in hybrids of Alq3 nanoparticles and MoS2 monolayer

Ganesh Ghimire, Krishna P. Dhakal, Guru P. Neupane, Seong Gi Jo, Hyun Kim, Changwon Seo, Young Hee Lee, Jinsoo Joo, Jeongyong Kim

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Organic/inorganic hybrid structures have been widely studied because of their enhanced physical and chemical properties. Monolayers of transition metal dichalcogenides (1L-TMDs) and organic nanoparticles can provide a hybridization configuration between zero- and two-dimensional systems with the advantages of convenient preparation and strong interface interaction. Here, we present such a hybrid system made by dispersing π-conjugated organic (tris (8-hydroxyquinoline) aluminum(III)) (Alq3) nanoparticles (NPs) on 1L-MoS2. Hybrids of Alq3 NP/1L-MoS2 exhibited a two-fold increase in the photoluminescence of Alq3 NPs on 1L-MoS2 and the n-doping effect of 1L-MoS2, and these spectral and electronic modifications were attributed to the charge transfer between Alq3 NPs and 1L-MoS2. Our results suggested that a hybrid of organic NPs/1L-TMD can offer a convenient platform to study the interface interactions between organic and inorganic nano objects and to engineer optoelectronic devices with enhanced performance.

Original languageEnglish
Article number185702
JournalNanotechnology
Volume28
Issue number18
DOIs
Publication statusPublished - 2017 Apr 10

Keywords

  • charge transfer
  • MoS
  • organic nanoparticle
  • transition metal dichalcogendie

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Ghimire, G., Dhakal, K. P., Neupane, G. P., Gi Jo, S., Kim, H., Seo, C., Hee Lee, Y., Joo, J., & Kim, J. (2017). Optically active charge transfer in hybrids of Alq3 nanoparticles and MoS2 monolayer. Nanotechnology, 28(18), [185702]. https://doi.org/10.1088/1361-6528/aa67c7