Apr 3, 2020 · The photoluminescence (PL) of 1L-MoS2 degrades due to aging-related defect formation. The passivation of these defects leads to substantial improvement in optical properties. Here, we report the enhancement of PL on aged 1L-MoS2 by laser treatment.

Nov 12, 2013 · We demonstrate the tunability of the photoluminescence (PL) properties of monolayer (1L)-MoS 2 via chemical doping. The PL intensity of 1L-MoS 2 was drastically enhanced by the adsorption of p-type dopants with high electron affinity but reduced by the adsorption of n-type dopants.

The PL spectra of the MoS 2 shows a typical PL curve for CVD-grown monolayer MoS 2 with one broad peak at 684 nm, corresponding to direct-gap optical transitions of MoS 2 (1.81 eV) [44]. ...

Jan 16, 2025 · In this Application Note, CVD-grown MoS 2 flakes are analysed using Raman and PL imaging with the RM5 Raman Microscope. An Edinburgh Instruments RM5 Raman Microscope equipped with a 532 nm laser and two gratings; 300 gr/mm for PL and 1800 gr/mm for Raman, was used to analyse MoS 2 flakes.

Raman analysis was employed to probe any evidence regarding defect densities of GO. Optical properties of GO, MoS2, Ag-rGO, and Ag-MoS2 were visualized through UV-Vis & PL spectroscopy.

PL emission from 1L-MoS 2 was observed with 325 nm excitation in large-area flakes (≥532 μm ² ) because of efficient heat dissipation.

Jul 4, 2014 · Here we consider pristine MoS 2 and study its interaction with Au nanoislands, resulting in local variations of photoluminescence (PL) in Au-MoS 2 hybrid structures. By depositing monolayers of...

5 days ago · Molybdenum disulfide (MoS2) is a widely studied material in the family of transition metal dichalcogenides (TMDCs) and has potential applications in electronics, optoelectronics, and energy harvesting due to its high mobility, excellent gate controllability, high ON/OFF current ratio, low standby current, small dielectric constant, and good stability, etc. Doping is …

2 days ago · Photoluminescence (PL) characterisation with a 405 nm excitation laser on the individual materials found broad PL peaks centred at 675 and 515 nm, corresponding to MoS 2 and FePS 3, respectively ...

Mar 5, 2025 · A micro-Raman spectrometer (HORIBA/LabRAM Odyssey) was employed to collect the Raman and PL spectra at a 532 nm laser excitation wavelength. A semiconductor analyzer (Agilent 4155C) was used for electrical measurements. The atomic stacking structures were observed via transmission electron microscopy (JEOL-F200).