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Title: Strain-Driven In-plane Ordering in Vertically Aligned ZnO–Au Nanocomposites with Highly Correlated Metamaterial Properties

Abstract

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.

Authors:
 [1];  [1];  [1];  [1]; ORCiD logo [2]
  1. School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
  2. School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States, School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, United States
Publication Date:
Research Org.:
Purdue Univ., West Lafayette, IN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
OSTI Identifier:
1595503
Alternate Identifier(s):
OSTI ID: 1599004
Grant/Contract Number:  
SC0020077; DMR-1565822
Resource Type:
Journal Article: Published Article
Journal Name:
ACS Omega
Additional Journal Information:
Journal Name: ACS Omega Journal Volume: 5 Journal Issue: 5; Journal ID: ISSN 2470-1343
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Paldi, Robynne L., Sun, Xing, Wang, Xuejing, Zhang, Xinghang, and Wang, Haiyan. Strain-Driven In-plane Ordering in Vertically Aligned ZnO–Au Nanocomposites with Highly Correlated Metamaterial Properties. United States: N. p., 2020. Web. doi:10.1021/acsomega.9b03356.
Paldi, Robynne L., Sun, Xing, Wang, Xuejing, Zhang, Xinghang, & Wang, Haiyan. Strain-Driven In-plane Ordering in Vertically Aligned ZnO–Au Nanocomposites with Highly Correlated Metamaterial Properties. United States. https://doi.org/10.1021/acsomega.9b03356
Paldi, Robynne L., Sun, Xing, Wang, Xuejing, Zhang, Xinghang, and Wang, Haiyan. Tue . "Strain-Driven In-plane Ordering in Vertically Aligned ZnO–Au Nanocomposites with Highly Correlated Metamaterial Properties". United States. https://doi.org/10.1021/acsomega.9b03356.
@article{osti_1595503,
title = {Strain-Driven In-plane Ordering in Vertically Aligned ZnO–Au Nanocomposites with Highly Correlated Metamaterial Properties},
author = {Paldi, Robynne L. and Sun, Xing and Wang, Xuejing and Zhang, Xinghang and Wang, Haiyan},
abstractNote = {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.},
doi = {10.1021/acsomega.9b03356},
url = {https://www.osti.gov/biblio/1595503}, journal = {ACS Omega},
issn = {2470-1343},
number = 5,
volume = 5,
place = {United States},
year = {2020},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at https://doi.org/10.1021/acsomega.9b03356

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