Strain-Driven In-plane Ordering in Vertically Aligned ZnO-Au Nanocomposites with Highly Correlated Metamaterial Properties.,ACS Omega

当前位置： X-MOL 学术 › ACS Omega › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Strain-Driven In-plane Ordering in Vertically Aligned ZnO-Au Nanocomposites with Highly Correlated Metamaterial Properties.
ACS Omega ( IF 3.7 ) Pub Date : 2020-01-28 , DOI: 10.1021/acsomega.9b03356
Robynne L Paldi ₁ , Xing Sun ₁ , Xuejing Wang ₁ , Xinghang Zhang ₁ , Haiyan Wang _{1,

2}

Affiliation

Hyperbolic metamaterials demonstrate exotic optical properties that are poised to find applications in subdiffraction imaging and hyperlenses. Key challenges remain for practical applications, such as high energy losses and lack of hyperbolic properties in shorter wavelengths. In this work, a new oxide-metal (ZnO-Au) hybrid-material system in the vertically aligned nanocomposite thin-film form has been demonstrated with very promising in-plane two-phase ordering using a one-step growth method. Au nanopillars grow epitaxially in the ZnO matrix, and the pillar morphology, orientation, and quasi-hexagonal in-plane ordering are found to be effectively tuned by the growth parameters. Strong surface plasmon resonance has been observed in the hybrid system in the UV-vis range, and highly anisotropic dielectric properties have resulted with much broader and tunable hyperbolic wavelength regimes. The observed strain-driven two-phase in-plane ordering and its novel tunable hyperbolic metamaterial properties all demonstrate strong potential for future oxide-metal hybrid-material design toward future integrated hybrid photonics.

中文翻译：

具有高度相关的超材料特性的垂直排列的ZnO-Au纳米复合材料中的应变驱动面内排序。

双曲线超材料显示出奇异的光学特性，有望在亚衍射成像和超透镜中找到应用。实际应用中仍然存在关键挑战，例如高能量损失和较短波长下缺乏双曲线特性。在这项工作中，已经证明了一种新型的垂直排列的纳米复合薄膜形式的氧化物-金属（ZnO-Au）杂化材料体系，并具有非常有希望的一步式生长方法，可用于面内两相排序。金纳米柱在ZnO基体中外延生长，并且可以通过生长参数有效地调整柱的形态，取向和准六边形面内有序。在紫外-可见光范围内的混合系统中观察到了强烈的表面等离子体共振，高度各向异性的介电特性导致了更宽泛且可调的双曲波长范围。观察到的应变驱动的两相面内有序化及其新颖的可调谐双曲超材料特性均显示出将氧化物-金属杂化材料设计用于未来集成杂化光子的强大潜力。

更新日期：2020-02-11

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南