Exploiting Zinc Oxide Re-emission to Fabricate Periodic Arrays

Coutts, Michael J.; Zareie, Hadi M.; Cortie, Michael B.; Phillips, M. R.; Wuhrer, Richard; McDonagh, Andrew M.

doi:10.1021/am100284v

Cited by 10 publications

(9 citation statements)

References 45 publications

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“…When the etching time is 0 s, only the nanocaps array is observed. Under this condition, the sizes of unetched PS colloid spheres are large enough, 21 so the nanotriangle sites are too small to be distinguished in Figure 2b. As the etching time increases to 60 s, some nanotriangles with average size of a = 65 ± 5 nm are observed.…”

Section: Resultsmentioning

confidence: 99%

Design of Hybrid Nanostructural Arrays to Manipulate SERS-Active Substrates by Nanosphere Lithography

Zhao¹,

Wen²,

Zhang

et al. 2017

ACS Appl. Mater. Interfaces

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An easy-handling and low-cost method is utilized to controllably fabricate nanopattern arrays as the surface-enhanced Raman scattering (SERS) active substrates with high density of SERS-active areas (hot spots). A hybrid silver array of nanocaps and nanotriangles are prepared by combining magnetron sputtering and plasma etching. By adjusting the etching time of polystyrene (PS) colloid spheres array in silver nanobowls, the morphology of the arrays can be easily manipulated to control the formation and distribution of hot spots. The experimental results show that the hybrid nanostructural arrays have large enhancement factor, which is estimated to be seven times larger than that in the array of nanocaps and three times larger than that in the array of nanorings and nanoparticles. According to the results of finite-difference time-domain simulation, the excellent SERS performance of this array is ascribed to the high density of hot spots and enhanced electromagnetic field.

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Section: Resultsmentioning

confidence: 99%

Design of Hybrid Nanostructural Arrays to Manipulate SERS-Active Substrates by Nanosphere Lithography

Zhao¹,

Wen²,

Zhang

et al. 2017

ACS Appl. Mater. Interfaces

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“…Au-ZnO or Au-Al 2 O 3 -Au nanoparticle sandwiches have been prepared by this means. [52][53] In the case of templates made of colloidally crystallized spheres, if the nanoparticles are to be released the deposition should proceed at an acute angle, so that the equatorial girths of the semi-shells do not fuse. 51 The use of porous alumina templates to prepare hybrid nanoparticles has also been explored.…”

Section: Templated Growthmentioning

confidence: 99%

“…59 Alternatively, the process can be used to prepare arrays of nanotriangles or nano-bowties, (h). (Images C to E and H reprinted with permission from ref 52 . Copyright 2008 American Chemical Society.…”

Section: Templated Growthmentioning

confidence: 99%

Synthesis and Optical Properties of Hybrid and Alloy Plasmonic Nanoparticles

2011

Self Cite

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“…This is an ideal strategy to achieve large-area thin films with high qualities precisely controllable on each local site. Such a strategy applies not only to hybrid halide perovskites [27] but also to any other organic/inorganic semiconductors [28,29] or even biomolecules [30] with strong aggregation performance. The corresponding designs also simultaneously facilitate new functions, including micro-/nano-cavity effects, local-field confinement, output coupling control, optical waveguides, and interface structural optimization or metasurface incorporation [31].…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Crystalline Gridding Networks of Hybrid Halide Perovskite for Random Lasing

Xue

2021

Crystals

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We report fabrication of large-scale homogeneous crystallization of CH3NH3PbBr3 (MAPbBr3) in the patterned substrate by a two-dimensional (2D) grating. This achieves high-quality optotelectronic structures on local sites in the micron scales and a homogeneous thin-film device in a centimeter scale, proposing a convenient technique to overcome the challenge for producing large-area thin-film devices with high quality by spin-coating. Through matching the concentration of the MAPbBr3/DMF solutions with the periods of the patterning structures, we found an optimized size of the patterning channels for a specified solution concentration (e.g., channel width of 5 μm for a concentration of 0.14 mg/mL). Such a design is also an excellent scheme for random lasing, since the crystalline periodic networks of MAPbBr3 grids are multi-crystalline constructions, and supply strong light-scattering interfaces. Using the random lasing performance, we can also justify the crystallization qualities and reveal the responsible mechanisms. This is important for the design of large-scale optoelectronic devices based on thin-film hybrid halide perovskites.

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Exploiting Zinc Oxide Re-emission to Fabricate Periodic Arrays

Cited by 10 publications

References 45 publications

Design of Hybrid Nanostructural Arrays to Manipulate SERS-Active Substrates by Nanosphere Lithography

Design of Hybrid Nanostructural Arrays to Manipulate SERS-Active Substrates by Nanosphere Lithography

Synthesis and Optical Properties of Hybrid and Alloy Plasmonic Nanoparticles

Two-Dimensional Crystalline Gridding Networks of Hybrid Halide Perovskite for Random Lasing

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