Monolayer tungsten disulfide (WS2) has emerged as an active material for optoelectronic devices due to its quantum yield of photoluminescence. Despite the enormous research about physical characteristics of monolayer WS2, the defect-related Raman scattering has been rarely studied. Here, we report the correlation of topography and Raman scattering in monolayer WS2 by using tip-enhanced resonance Raman spectroscopy and reveal defect-related Raman modes denoted as D and D′ modes. We found that the sulfur vacancies introduce not only the red-shifted A1g mode but also the D and D′ modes by the density functional theory calculations. The observed defect-related Raman modes can be utilized to evaluate the quality of monolayer WS2 and will be help...
Two-dimensional (2D) transition-metal dichalcogenide alloys with tunable band gaps have promising ap...
Monolayers of transition metal dichalcogenides (TMDs) are atomically thin two-dimensional crystals w...
Structural defects in 2D materials offer an effective way to engineer new material functionalities b...
Monolayer tungsten disulfide (WS2) has emerged as an active material for optoelectronic devices due ...
Copyright © 2022 American Chemical Society. Defect investigation in two-dimensional transition-metal...
Defects play an indispensable role in tuning the optical properties of two-dimensional materials. He...
"The Raman scattering of single-and few-layered WS2 is studied as a function of the number of S-W-S ...
Raman spectroscopy has been widely used as an effective tool to characterize two-dimensional transit...
Resonant Raman spectroscopy is a powerful tool for providing information about excitons and exciton–...
It is well established that defects strongly influence properties in two-dimensional materials. For ...
We report the Photoluminescence and Raman imaging of WS2 monolayers grown by chemical vapor depositi...
Low-wavenumber Raman (LWR) spectroscopy determines signatures in structural information and layer-to...
We present temperature-dependent resonance Raman measurements on monolayer WS2 for the temperature r...
Monolayers of transition metal dichalcogenides (TMD) are direct-gap semiconductor and exhibit strong...
The photoluminescence quantum yield (PLQY) of the chemical vapor deposition (CVD) grown transition-m...
Two-dimensional (2D) transition-metal dichalcogenide alloys with tunable band gaps have promising ap...
Monolayers of transition metal dichalcogenides (TMDs) are atomically thin two-dimensional crystals w...
Structural defects in 2D materials offer an effective way to engineer new material functionalities b...
Monolayer tungsten disulfide (WS2) has emerged as an active material for optoelectronic devices due ...
Copyright © 2022 American Chemical Society. Defect investigation in two-dimensional transition-metal...
Defects play an indispensable role in tuning the optical properties of two-dimensional materials. He...
"The Raman scattering of single-and few-layered WS2 is studied as a function of the number of S-W-S ...
Raman spectroscopy has been widely used as an effective tool to characterize two-dimensional transit...
Resonant Raman spectroscopy is a powerful tool for providing information about excitons and exciton–...
It is well established that defects strongly influence properties in two-dimensional materials. For ...
We report the Photoluminescence and Raman imaging of WS2 monolayers grown by chemical vapor depositi...
Low-wavenumber Raman (LWR) spectroscopy determines signatures in structural information and layer-to...
We present temperature-dependent resonance Raman measurements on monolayer WS2 for the temperature r...
Monolayers of transition metal dichalcogenides (TMD) are direct-gap semiconductor and exhibit strong...
The photoluminescence quantum yield (PLQY) of the chemical vapor deposition (CVD) grown transition-m...
Two-dimensional (2D) transition-metal dichalcogenide alloys with tunable band gaps have promising ap...
Monolayers of transition metal dichalcogenides (TMDs) are atomically thin two-dimensional crystals w...
Structural defects in 2D materials offer an effective way to engineer new material functionalities b...