Back to Search
Start Over
Tunable optical properties of transition metal dichalcogenide nanoparticles synthesized by femtosecond laser ablation and fragmentation.
- Source :
- Journal of Materials Chemistry C; 3/14/2023, Vol. 11 Issue 10, p3493-3503, 11p
- Publication Year :
- 2023
-
Abstract
- Manipulation of resonant dielectric nanostructures is of paramount importance for next-generation photonic devices. Traditionally, researchers use two-dimensional or phase-change materials for this purpose. However, the former leads to small efficiency, while the latter lacks continuous changes. Here, we provide an alternative approach through laser-induced modification. Specifically, via a laser ablation process we synthesized molybdenum disulfide (MoS<subscript>2</subscript>) nanoparticles (NPs), the composition of which we then controlled through laser fragmentation. It causes a transformation of MoS<subscript>2</subscript> into its oxide MoO<subscript>3−x</subscript>, which, in turn, results in pronounced modification of the optical response, owing to a large difference between their optical constants. In addition, laser-fragmented NPs have a several times larger photothermal response, compared to the original MoS<subscript>2</subscript> and classical silicon NPs. Thus, our MoS<subscript>2</subscript>-based laser-tunable NPs open up a new perspective for resonant nanophotonics, in particular, photothermal therapy. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20507526
- Volume :
- 11
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Journal of Materials Chemistry C
- Publication Type :
- Academic Journal
- Accession number :
- 162321237
- Full Text :
- https://doi.org/10.1039/d2tc05235k