Tunable structural colour

IF 32.9 1区 物理与天体物理 Q1 OPTICS
Noriaki Horiuchi
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引用次数: 0

Abstract Image

可调结构色
由于电致变色材料(如WO3)可以被整合到空腔中,因此IOPC被认为适合于构建电驱动的结构变色装置。而WO3在IOPC中的理论最大填充率仅为26%,导致在5 V电压下波长变化仅为90 nm。为了显著提高WO3在IOPC结构中的比例,Li等人开发了一种两步填充方法。将聚苯乙烯/二氧化硅核壳球(PS@SiO2)自组装在氧化铟锡玻璃衬底上,制备了PS@SiO2光子晶体(PCs)。随后,将过量的丙烯酰胺(AAm)水凝胶前驱体引入PS@SiO2 PCs中,用紫外线照射固化。采用氢氟酸选择性蚀刻SiO2外壳。然后用一种聚合物完全填充空腔,这种聚合物能够膨胀并储存(NH4)6H2W12O40溶液,该溶液在煅烧后转变为β-WO3晶体。由于其优越的膨胀性能,选择了聚乙二醇丙烯酸甲醚酯(OEGA480),但将其与丙烯酸羟乙酯(HEA)混合以降低其粘度,然后作为第二步填充的配方。结果表明,SiO2壳层厚度为26nm, WO3壁厚为148nm。
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来源期刊
Nature Photonics
Nature Photonics 物理-光学
CiteScore
54.20
自引率
1.70%
发文量
158
审稿时长
12 months
期刊介绍: Nature Photonics is a monthly journal dedicated to the scientific study and application of light, known as Photonics. It publishes top-quality, peer-reviewed research across all areas of light generation, manipulation, and detection. The journal encompasses research into the fundamental properties of light and its interactions with matter, as well as the latest developments in optoelectronic devices and emerging photonics applications. Topics covered include lasers, LEDs, imaging, detectors, optoelectronic devices, quantum optics, biophotonics, optical data storage, spectroscopy, fiber optics, solar energy, displays, terahertz technology, nonlinear optics, plasmonics, nanophotonics, and X-rays. In addition to research papers and review articles summarizing scientific findings in optoelectronics, Nature Photonics also features News and Views pieces and research highlights. It uniquely includes articles on the business aspects of the industry, such as technology commercialization and market analysis, offering a comprehensive perspective on the field.
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