Preparation of Ag@ZnO core–shell nanostructures by liquid-phase laser ablation and investigation of their femtosecond nonlinear optical properties

Engineering Schottky-like and heterojunction materials for enhanced photocatalysis performance – a review

“…25 Therefore, the Schottky like properties occurring at the metal/semiconductor interface further enhance the generation of reactive oxygen species (ROS), leading to an enhancement in the catalytic performance of the materials. 26,27…”

“…the recombination of photo-generated electron and hole pairs 25 . Therefore, the Schottky like properties occurring at the metal / semiconductor interface further enhances the generation of reactive oxygen species (ROS), leading to an enhancement in the catalytic performance of the materials 26,27 . Surface Plasmon resonance (SPR) is basically the oscillation of electrons at the junction between a semiconductor and metal 28 .…”

Dual functionality of surface plasmon resonance and barrier layer on the photosensing and optical nonlinearity of ZnO nanorod arrays

“…11,18,27 The intrinsic large nonlinear optical (NLO) response of heterostructures is appealing due to its applications in integrated nonlinear optical devices. 28 Strong coupling between surface plasmon resonance (SPR) and the excitons is reported in noble metal–ZnO core–shell nanostructure. 28,29 Noble metal NP-decorated wide-bandgap semiconductors exhibit strong third-order NLO effects, 28,30 which are appropriate for optical imaging, optical power limiting, all-optical switching, laser technology, pulse compression, mode locking, saturable Q switches, frequency conversion, and electro-optic device fabrications.…”

“…28 Strong coupling between surface plasmon resonance (SPR) and the excitons is reported in noble metal–ZnO core–shell nanostructure. 28,29 Noble metal NP-decorated wide-bandgap semiconductors exhibit strong third-order NLO effects, 28,30 which are appropriate for optical imaging, optical power limiting, all-optical switching, laser technology, pulse compression, mode locking, saturable Q switches, frequency conversion, and electro-optic device fabrications. 31–36 Zhang et al 28 fabricated Ag@ZnO core–shell nanostructures via liquid-phase laser ablation and investigated their femtosecond nonlinear optical properties for potential applications in ultrafast all-optical switching.…”

“…28,29 Noble metal NP-decorated wide-bandgap semiconductors exhibit strong third-order NLO effects, 28,30 which are appropriate for optical imaging, optical power limiting, all-optical switching, laser technology, pulse compression, mode locking, saturable Q switches, frequency conversion, and electro-optic device fabrications. 31–36 Zhang et al 28 fabricated Ag@ZnO core–shell nanostructures via liquid-phase laser ablation and investigated their femtosecond nonlinear optical properties for potential applications in ultrafast all-optical switching. The enhancement in the NLR index n 2 of the Ag@ZnO core–shell nanostructure can be explained by the large intrinsic nonlinearity of the composite material, coupling of dipole modes and local field enhancement of the Ag metal NPs.…”