Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 20,
  • Issue 1,
  • pp. 011602-
  • (2022)

Chemically engineered dendrite growth of uniform monolayers MoS2 for enhanced photoluminescence [Invited]

Not Accessible

Your library or personal account may give you access

Abstract

Large area and uniform monolayer MoS2 is of great importance for optoelectronic devices but is commonly suffering from rather weak photoluminescence. Here, by engineering the concentration profiles of gaseous chemicals through extra trace amounts of water, we demonstrate the uniform dendrite-type growth of monolayer MoS2 unraveled by spatially resolved fluorescence spectroscopy, which exhibits macroscopic monolayer flakes (up to centimeter scale) with photoluminescence intensity of orders of magnitude higher than conventional chemical vapor deposition monolayer MoS2. Both spectroscopic evidence and theoretical models reveal that the fast-fractal dendrite growth can be ascribed to the extra introduced water sources that generate sufficient aqueous gas around the S-poor regions nearby the central-axis zone, leading to highly efficient Mo sources transport, accelerated S atom corrosion nearby grain edges, and/or defect sites, as well as enhanced photoemission intensity. Our results may provide new insight for high throughput fabrication of MoS2 monolayers with high yield photoluminescence efficiency.

© 2022 Chinese Laser Press

PDF Article
More Like This
Enhanced local photoluminescence of a multilayer MoS2 nanodot stacked on monolayer MoS2 flakes

Fei Chen, Lei Wang, Ting Wang, and Xiaohong Ji
Opt. Mater. Express 7(4) 1365-1373 (2017)

Tip-enhanced photoluminescence spectroscopy of monolayer MoS2

Lingyan Meng and Mengtao Sun
Photon. Res. 5(6) 745-749 (2017)

Hybrid coupling enhances photoluminescence of monolayer MoS2 on plasmonic nanostructures

Wen-Bo Shi, Lei Zhang, Di Wang, Rui-Li Zhang, Yingying Zhu, Li-Heng Zhang, Ruwen Peng, Wenzhong Bao, Ren-Hao Fan, and Mu Wang
Opt. Lett. 43(17) 4128-4131 (2018)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved