In:
Journal of Materials Chemistry C, Royal Society of Chemistry (RSC), Vol. 11, No. 10 ( 2023), p. 3493-3503
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 2 ) nanoparticles (NPs), the composition of which we then controlled through laser fragmentation. It causes a transformation of MoS 2 into its oxide MoO 3− x , 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 2 and classical silicon NPs. Thus, our MoS 2 -based laser-tunable NPs open up a new perspective for resonant nanophotonics, in particular, photothermal therapy.
Type of Medium:
Online Resource
ISSN:
2050-7526
,
2050-7534
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2702245-6
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