Photoluminescence enhancement of tris(8-hydroxyquinolinato)aluminum thin film by plasmonic Ag nanotriangle array fabricated by nanosphere lithography

Yanome, Kazuki; Kiba, Takayuki; Masui, Kazuaki; Kawamura, Midori; Abe, Yoshio; Kim, Kyung Ho; Takase, Mai; Takayama, Junichi; Murayama, Akihiro

doi:10.1016/j.tsf.2018.02.033

Cited by 9 publications

(2 citation statements)

References 21 publications

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“…Compared to top-down lithography approaches, NSL is a low-cost, simple fabrication technique that can achieve sub-100 nm feature sizes without the need for complex protocols or expensive equipment . NSL has been demonstrated as a useful nanoscale patterning approach in many applications, including surface-enhanced Raman scattering, , patterning of nanogap electrodes, gas sensing, antireflection coatings for solar cells, , photoluminescence, , optical fiber tip nanoprobes, plasmonic electrodes, , and superhydrophobic surfaces . Since the first demonstration of equilateral triangle and dot array patterns by Hulteen and Van Duyne, NSL has been used to achieve a wide range of pattern geometries, such as bimetallic “cup-like structures”, rods, and rings produced by shadow (or “angle-resolved”) NSL, − core–shell-structured nanohole arrays in conjunction with triangular nanopillars, and nanobridged NSL featuring connective linkages between nanospheres .…”

Section: Introductionmentioning

confidence: 99%

Multiple Linear Regression Modeling of Nanosphere Self-Assembly via Spin Coating

et al. 2021

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Nanosphere lithography employs single- or multilayer self-assembled nanospheres as a template for bottom-up nanoscale patterning. The ability to produce self-assembled nanospheres with minimal packing defects over large areas is critical to advancing applications of nanosphere lithography. Spin coating is a simple-to-execute, high-throughput method of nanosphere self-assembly. The wide range of possible process parameters for nanosphere spin coating, howeverand the sensitivity of nanosphere self-assembly to these parameterscan lead to highly variable outcomes in nanosphere configuration by this method. Finding the optimum process parameters for nanosphere spin coating remains challenging. This work adopts a design-of-experiments approach to investigate the effects of seven factorsnanosphere wt%, methanol/water ratio, solution volume, wetting time, spin time, maximum revolutions per minute, and ramp rateon two response variablespercentage hexagonal close packing and macroscale coverage of nanospheres. Single-response and multiple-response linear regression models identify main and two-way interaction effects of statistical significance to the outcomes of both response variables and enable prediction of optimized settings. The results indicate a tradeoff between the high ramp rates required for large macroscale coverage and the need to minimize high shear forces and evaporation rates to ensure that nanospheres properly self-assemble into hexagonally packed arrays.

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Section: Introductionmentioning

confidence: 99%

Multiple Linear Regression Modeling of Nanosphere Self-Assembly via Spin Coating

et al. 2021

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“…Chemical synthesis of internal metallic nanogaps have been reported [23], but the large-area preparation is still an obstacle. Moreover, nanosphere lithography have been used to fabricate plasmonics nanogap structures [24][25][26], but the structure density and the control of large-area preparation need to be further improved. More effective and new technologies are worth exploring to fabricate large-area metallic nanogaps in a low-cost manner.…”

Section: Introductionmentioning

confidence: 99%

Biologically-Inspired Water-Swelling-Driven Fabrication of Centimeter-Level Metallic Nanogaps

Wang

Dai

et al. 2021

Micromachines

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Metallic nanogaps have great values in plasmonics devices. However, large-area and low-cost fabrication of such nanogaps is still a huge obstacle, hindering their practical use. In this work, inspired by the cracking behavior of the tomato skin, a water-swelling-driven fabrication method is developed. An Au thinfilm is deposited on a super absorbent polymer (SAP) layer. Once the SAP layer absorbs water and swells, gaps will be created on the surface of the Au thinfilm at a centimeter-scale. Further experimentation indicates that such Au gaps can enhance the Raman scattering signal. In principle, the water-swelling-driven fabrication route can also create gaps on other metallic film and even nonmetallic film in a low-cost way.

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Emission enhancement of tris(8-quinolinolato)aluminum with Al nanotriangle arrays fabricated by nanosphere lithography

Kiba

Iijima

Yanome

et al. 2019

Applied Surface Science

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Photoluminescence enhancement of tris(8-hydroxyquinolinato)aluminum thin film by plasmonic Ag nanotriangle array fabricated by nanosphere lithography

Cited by 9 publications

References 21 publications

Multiple Linear Regression Modeling of Nanosphere Self-Assembly via Spin Coating

Multiple Linear Regression Modeling of Nanosphere Self-Assembly via Spin Coating

Biologically-Inspired Water-Swelling-Driven Fabrication of Centimeter-Level Metallic Nanogaps

Emission enhancement of tris(8-quinolinolato)aluminum with Al nanotriangle arrays fabricated by nanosphere lithography

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