Deterministic Modification of CVD Grown Monolayer MoS2 with Optical Pulses

Mikko T. Turunen, Eero Hulkko, Kamila K. Mentel, Xueyin Bai, Suvi Tuuli Akkanen, Mohammad Amini, Shisheng Li, Harri Lipsanen, Mika Pettersson, Zhipei Sun*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)


Transition metal dichalcogenide monolayers have demonstrated a number of exquisite optical and electrical properties. Here, the authors report the optical modification of topographical and optical properties of monolayer MoS2 with femtosecond pulses under an inert atmosphere. A formation of three-dimensional structures on monolayer MoS2 with tunable height up to ≈20 nm is demonstrated. In contrast to unmodified monolayer MoS2, these optically modified structures show significantly different optical properties, such as lower photoluminescence intensity and longer fluorescence lifetime. The results suggest a novel way to modify transition metal dichalcogenide materials for mechanic, electronic and photonic applications.

Original languageEnglish
Article number2002119
Number of pages6
JournalAdvanced Materials Interfaces
Issue number10
Early online date2021
Publication statusPublished - 21 May 2021
MoE publication typeA1 Journal article-refereed


  • 2D materials
  • molybdenum disulfide
  • optical modification
  • photoluminescence
  • topography


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