Enhanced nonlinear optical responses of zinc diaminopyrimidin-2-ylthio phthalocyanine conjugated to AgxAuy alloy nanoparticles

Bankole, Owolabi M.; Osifeko, Olawale L.; Nyokong, Tebello

doi:10.1016/j.jphotochem.2016.06.025

Cited by 17 publications

(2 citation statements)

References 60 publications

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“…O.M. Bankole [68] modified the surface of alloys with the composition of Ag 1 Au 3 and Ag 3 Au 1 using zinc phthalocyaninate 24. The peripheral diaminopyrimidine groups of phthalocyanine form coordination bonds with the surface of nanoparticles.…”

Section: Hybrids With Gold Nanoparticles: Preparation and Applicationmentioning

confidence: 99%

Phthalocyanines and Naphthalocyanines with Sulfur-Containing Functional Groups: Synthesis, Preparation of Hybrid Gold Nanoparticles and Some Application Areas

Dubinina¹,

Tychinsky²,

Gorbunova³

et al. 2021

MHC

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Synthetic approaches to the phthalocyanines and their polynuclear and sandwich-type derivatives, bearing sulfurcontaining functional groups, are classified. Additionally complexes, possessing an extended π-conjugation system (planar and sandwich-type 2,3-naphthalocyanines) are reviewed. Principal application areas are covered. Special attention is paid to the formation of conjugates with gold nanoparticles -prospective materials for organic electronics.

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Section: Hybrids With Gold Nanoparticles: Preparation and Applicationmentioning

confidence: 99%

Phthalocyanines and Naphthalocyanines with Sulfur-Containing Functional Groups: Synthesis, Preparation of Hybrid Gold Nanoparticles and Some Application Areas

Dubinina¹,

Tychinsky²,

Gorbunova³

et al. 2021

MHC

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show abstract

“…Being a promising model platform to study plethora of plasmon‐assisted phenomena, this type of nanostructures have already demonstrated significant increase in the quantum yield of singlet oxygen generation, [ 25–27 ] cytotoxic agent for photodynamic therapy (PDT) of cancer cells, and highly reacting agent triggering variety of chemical reactions. [ 28 ] One may anticipate a range of plasmon‐enhanced photoinduced processes out of such hybrid systems, namely nonlinear optical response, [ 29–33 ] photocurrent generation, [ 33–35 ] fluorescence, [ 36–38 ] SERS, [ 39,40 ] and other related phenomena.…”

Section: Introductionmentioning

confidence: 99%

Resonant Plasmon‐Enhanced Absorption of Charge Transfer Complexes in a Metal–Organic Monolayer

Krichevsky

Tolbin

Dubinina

et al. 2021

Advanced Optical Materials

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Plasmonic enhancement of absorption in charge‐transfer (CT) complexes formed under NO2 gas adsorption onto 2D hybrid structure, based on the metal–organic monolayer and gold nanoparticles (AuNPs), is demonstrated. By using Langmuir–Blodgett deposition of low‐symmetry zinc phthalocyanine (ZnPc) molecules, the metal–organic monolayer is fabricated with greatly suppressed intermolecular aggregation. Oxidation of the monolayer through coordination of NO2 molecules with axial zinc ions of ZnPc molecules gives rise to the specific absorption band inherited to cation radical ZnPc+. The hybrid AuNPs–ZnPc structure is engineered to maximize exciton–plasmon interaction of CT complexes at the radical form of the metal–organic monolayer. Excellent spectral and spatial overlaps with plasmon resonance boost absorption of CT internal optical transition, so‐called “fingerprint” band, by a factor of six from 0.45% to 2.8% in total. The approach paves the way for efficient plasmonic control over photochemical reactions promoted by charge‐transfer complexes in metal–organic films. In particular, the plasmonic effect is harnessed to improve NO2 gas sensing properties; the experimental study shows a 15‐fold increase of the detection efficiency in the specific band of CT complexes under the gas exposure.

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Nonlinear Propagation of Laser Light in Plasmonic Nanocomposites

Agiotis

Meunier

2022

Laser & Photonics Reviews

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Plasmonic nanocomposites have been extensively studied for over 3 decades. According to early theoretical studies, a large enhancement of nonlinear response has been predicted. Nonetheless, the promised enhancement of coherent or Kerr-type nonlinearities incurs major limitations related to strong absorption and saturation effects. Accordingly, diffraction-limited interactions and long-scale propagation in ultrafast timescales are undermined despite nanoscale-localized electronic field enhancement. Seemingly only nanometric devices operating at low intensity regimes are benefitted from the foresaid effect. Nonetheless, numerous studies have still exploited configurable properties of the nonlinear response of plasmonic nanocomposites, such as nonlinear absorption, high-order nonlinearities, and diffusive nonlinearities for the development of novel processes within the framework of nonlinear wave propagation described by effective medium properties. In this review, the most recent developments on the understanding of the nonlinear response of metals and plasmonic nanocomposites in various temporal regimes are presented. Furthermore, a synthesis of their experimentally determined third-order properties obtained by various experimental techniques, along with practical considerations, is provided. Computational models used for the formulation of nonlinear wave propagation in plasmonic nanocomposites are subsequently presented, corresponding to applicable concepts. Most recent related applications are concisely summarized, indicating the directions of increasing interest in the field, and outlining shortcomings.

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Enhanced nonlinear optical responses of zinc diaminopyrimidin-2-ylthio phthalocyanine conjugated to AgxAuy alloy nanoparticles

Cited by 17 publications

References 60 publications

Phthalocyanines and Naphthalocyanines with Sulfur-Containing Functional Groups: Synthesis, Preparation of Hybrid Gold Nanoparticles and Some Application Areas

Phthalocyanines and Naphthalocyanines with Sulfur-Containing Functional Groups: Synthesis, Preparation of Hybrid Gold Nanoparticles and Some Application Areas

Resonant Plasmon‐Enhanced Absorption of Charge Transfer Complexes in a Metal–Organic Monolayer

Nonlinear Propagation of Laser Light in Plasmonic Nanocomposites

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