Solid-state thermal dewetted silver nanoparticles onto electrochemically grown self-standing vertically aligned ZnO nanorods for three-dimensional plasmonic nanostructures

Badan, J.; Jauregui, Guillermo; Navarrete-Astorga, Elena; Henríquez, Rodrigo; Jiménez, Francisco Martín; Ariosa, D.; Dalchiele, Enrique A.

doi:10.1016/j.ceramint.2021.08.165

Cited by 11 publications

(6 citation statements)

References 81 publications

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“…Moreover, and very importantly, in order to ensure the desired control of nanostructures, it is critical to have a thorough understanding of the fundamental microscopic mechanisms that govern the processes used in these approaches [4,28,31,32]. Several techniques have been reported for the production of microand nanoscale metallic particles arrays supported onto a solid substrate, including spray pyrolysis [33,34], sol-gel [35], electroless metal deposition [34], electrodeposition [34], and solid-state dewetting (SSD) [4,25,[36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

“…The original continuous film breaks apart into numerous particles in the same way as a water layer would on a hydrophobic surface, and this process is known as dewetting [25,28,41,[45][46][47][48]. The SSD process can be induced by thermal annealing [12,26,31,36,38,40,41,49], pulsed laser heating [1,4,39,50], combined thermal annealing and pulsed laser heating [27], ion beam irradiation [51][52][53][54], electron beam irradiation [55], and inductively coupled plasma discharge [56]. Nonetheless, thermal annealing is probably the simplest way to promote dewetting, particularly when working on large areas.…”

Section: Introductionmentioning

confidence: 99%

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Silver Nanoparticle Arrays onto Glass Substrates Obtained by Solid-State Thermal Dewetting: A Morphological, Structural and Surface Chemical Study

et al. 2022

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Silver nanoparticles (NPs) on glass substrates were obtained by a solid-state thermal dewetting (SSD) process using vacuum-evaporated-silver precursor layers. An exhaustive investigation of the morphological, structural, and surface chemistry properties by systematically controlling the precursor film thickness, annealing temperature, and time was conducted. Thin silver films with thicknesses of 40 and 80 nm were deposited and annealed in air by applying a combined heat-up+constant temperature–time program. Temperatures from 300 to 500 °C and times from 0 to 50 min were assayed. SSD promoted the morphological modification of the films, leading to the Ag NPs having a discrete structure. The size, shape, surface density, and inter-nanoparticle distance of the nanoparticles depended on the initial film thickness, annealing temperature, and time, exhibiting a cubic silver structure with a (111) preferred crystallographic orientation. The prepared NPs were found to be highly enriched in the Ag{111}/Ag{110}/Ag{100} equilibrium facets. SSD not only promotes NP formation but also promotes the partial oxidation from Ag to AgO at the surface level. AgO was detected on the surface around the nanoparticles synthesized at 500 °C. Overall, a broad framework has been established that connects process factors to distinguish resultant Ag NP features in order to develop unique silver nanoparticles for specific applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticle Arrays onto Glass Substrates Obtained by Solid-State Thermal Dewetting: A Morphological, Structural and Surface Chemical Study

et al. 2022

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“…Furthermore, in the ZnONRs/MAgNPs sample, a wide absorption region ranging from just under 400 to more than 500 nm is determined, which is assigned to the surface plasmon resonance (SPR) effect of MagNPs. 43,44 In fact, since the sizes of the silver nanoparticles have a certain effect on the SPR wavelengths, wide SPR band can be explained by the size diversity of the MAgNPs which is conrmed by dynamic light scattering (DLS) analysis in Fig. 3b.…”

Section: Optical Propertiesmentioning

confidence: 99%

Developing low-cost nanohybrids of ZnO nanorods and multi-shaped silver nanoparticles for broadband photodetectors

et al. 2023

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“…Nevertheless, low sunlight performance and occurrence of the photo-corrosion are the main drawbacks influencing the practical application of ZnO [ 27 ]. According to the literatures, ZnO was synthesized by various routes [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 ]. Among these techniques, a chemical precipitation method has been used to prepare the semiconducting nanomaterials, which have the benefits of being inexpensive, simple, and easy to control [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

“…Synthesis of various metal-decorated semiconductors has been demonstrated [ 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. The Ag/ZnO photocatalyst provides an enhanced photocatalytic performance compared to the bare ZnO, due to a dramatic increase of charge carries separation rate at the interface [ 9 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ]. Silver/ZnO photocatalysts have been prepared by using numerous methods [ 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 ].…”

Section: Introductionmentioning

confidence: 99%

Ag-Modified ZnO for Degradation of Oxytetracycline Antibiotic and Reactive Red Azo Dye

et al. 2022

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It is known that low electron-hole separation efficiency is the major disadvantage influencing low photoactivity of the UV-active ZnO photocatalyst. To solve this drawback, the excellent fabrication technique has been used to disperse silver metal on ZnO surface. In this study, an addition of silver content up to 15 wt% was carried out. The 5Ag-ZnO sample, comprising 5 wt% of silver metal, displayed a hexagonal wurtzite structure, and a band gap of 3.00 eV, with high sunlight-active photocatalytic performance of 99–100% and low photo-corrosion problem. The complete degradation of oxytetracycline (OTC) antibiotic and reactive red dye 141 (RR141) dye under natural sunlight was achieved. The highest rate constant of 0.061 min−1 was detected. The enhancement of the performance is mainly due to lowering of the electron-hole recombination rate. Dispersion of silver on ZnO causes the generation of the Schottky barrier at the interface between Ag and ZnO, so that improvement of quantum efficiency and enhancement of the resultant photoactivity could be expected. Furthermore, good distribution of metallic silver also causes a red shift in absorption of light toward the visible spectrum. This is strongly attributed to the surface plasmon resonance effect, which occurred after successful decoration of the noble metal on ZnO. The photocatalyst, with great structural stability, still maintains high photocatalytic efficiency even after five times of use, implying its excellent cycling ability. The present finding offers a new road to generate a silver decorated ZnO photocatalyst for the complete removal of dye and antibiotics contaminated in the environment.

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Solid-state thermal dewetted silver nanoparticles onto electrochemically grown self-standing vertically aligned ZnO nanorods for three-dimensional plasmonic nanostructures

Cited by 11 publications

References 81 publications

Silver Nanoparticle Arrays onto Glass Substrates Obtained by Solid-State Thermal Dewetting: A Morphological, Structural and Surface Chemical Study

Silver Nanoparticle Arrays onto Glass Substrates Obtained by Solid-State Thermal Dewetting: A Morphological, Structural and Surface Chemical Study

Developing low-cost nanohybrids of ZnO nanorods and multi-shaped silver nanoparticles for broadband photodetectors

Ag-Modified ZnO for Degradation of Oxytetracycline Antibiotic and Reactive Red Azo Dye

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