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Deterministic Modification of CVD Grown Monolayer MoS 2 with Optical Pulses
Author(s) -
Turunen Mikko T.,
Hulkko Eero,
Mentel Kamila K.,
Bai Xueyin,
Akkanen SuviTuuli,
Amini Mohammad,
Li Shisheng,
Lipsanen Harri,
Pettersson Mika,
Sun Zhipei
Publication year - 2021
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.202002119
Subject(s) - monolayer , materials science , femtosecond , photoluminescence , photonics , optoelectronics , transition metal , fluorescence , nanotechnology , laser , optics , chemistry , biochemistry , physics , catalysis
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 MoS 2 with femtosecond pulses under an inert atmosphere. A formation of three‐dimensional structures on monolayer MoS 2 with tunable height up to ≈20 nm is demonstrated. In contrast to unmodified monolayer MoS 2 , 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.