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Title: Room-Temperature Ferroelectric LiNb 6Ba 5Ti 4O 30 Spinel Phase in a Nanocomposite Thin Film Form for Nonlinear Photonics

Abstract

Tetragonal tungsten bronze (TTB) materials are one of the most promising classes of materials for ferroelectric and nonlinear optical devices, owing to their very unique noncentrosymmetric crystal structure. In this work, a new TTB phase of LiNb 6Ba 5Ti 4O 30 (LNBTO) has been discovered and studied. A small amount of a secondary phase, LiTiO 2 (LTO), has been incorporated as nanopillars that are vertically embedded in the LNBTO matrix. The new multifunctional nanocomposite thin film presents exotic highly anisotropic microstructure and properties, e.g., strong ferroelectricity, high optical transparency, anisotropic dielectric function, and strong optical nonlinearity evidenced by the second harmonic generation results. An optical waveguide structure based on the stacks of α-Si on SiO 2/LNBTO–LTO has been fabricated, exhibiting low optical dispersion with an optimized evanescent field staying in the LNBTO–LTO active layer. Lastly, this work highlights the combination of new TTB material designs and vertically aligned nanocomposite structures for further enhanced anisotropic and nonlinear properties.

Authors:
 [1];  [2];  [3];  [2];  [2];  [4]; ORCiD logo [3];  [3]; ORCiD logo [5];  [2]; ORCiD logo [2]
  1. Sun Yat-Sen Univ., Guangzhou, (China); Purdue Univ., West Lafayette, IN (United States)
  2. Purdue Univ., West Lafayette, IN (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT)
  4. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  5. Texas A & M Univ., College Station, TX (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
OSTI Identifier:
1619240
Alternate Identifier(s):
OSTI ID: 1739957
Report Number(s):
SAND-2020-4893J; LA-UR-20-28041
Journal ID: ISSN 1944-8244; 685971
Grant/Contract Number:  
AC04-94AL85000; 89233218CNA000001; NA0003525; DMR-1565822; DMR-1809520
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 12; Journal Issue: 20; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; tetragonal tungsten bronze; optical nonlinearity; ferroelectricity; vertically aligned nanocomposite; waveguide

Citation Formats

Huang, Jijie, Wang, Han, Li, Dongfang, Qi, Zhimin, Zhang, Di, Lu, Ping, Chen, Hou-Tong, Yarotski, Dmitry A., Lin, Pao-Tai, Zhang, Xinghang, and Wang, Haiyan. Room-Temperature Ferroelectric LiNb6Ba5Ti4O30 Spinel Phase in a Nanocomposite Thin Film Form for Nonlinear Photonics. United States: N. p., 2020. Web. doi:10.1021/acsami.0c03487.
Huang, Jijie, Wang, Han, Li, Dongfang, Qi, Zhimin, Zhang, Di, Lu, Ping, Chen, Hou-Tong, Yarotski, Dmitry A., Lin, Pao-Tai, Zhang, Xinghang, & Wang, Haiyan. Room-Temperature Ferroelectric LiNb6Ba5Ti4O30 Spinel Phase in a Nanocomposite Thin Film Form for Nonlinear Photonics. United States. https://doi.org/10.1021/acsami.0c03487
Huang, Jijie, Wang, Han, Li, Dongfang, Qi, Zhimin, Zhang, Di, Lu, Ping, Chen, Hou-Tong, Yarotski, Dmitry A., Lin, Pao-Tai, Zhang, Xinghang, and Wang, Haiyan. Tue . "Room-Temperature Ferroelectric LiNb6Ba5Ti4O30 Spinel Phase in a Nanocomposite Thin Film Form for Nonlinear Photonics". United States. https://doi.org/10.1021/acsami.0c03487.
@article{osti_1619240,
title = {Room-Temperature Ferroelectric LiNb6Ba5Ti4O30 Spinel Phase in a Nanocomposite Thin Film Form for Nonlinear Photonics},
author = {Huang, Jijie and Wang, Han and Li, Dongfang and Qi, Zhimin and Zhang, Di and Lu, Ping and Chen, Hou-Tong and Yarotski, Dmitry A. and Lin, Pao-Tai and Zhang, Xinghang and Wang, Haiyan},
abstractNote = {Tetragonal tungsten bronze (TTB) materials are one of the most promising classes of materials for ferroelectric and nonlinear optical devices, owing to their very unique noncentrosymmetric crystal structure. In this work, a new TTB phase of LiNb6Ba5Ti4O30 (LNBTO) has been discovered and studied. A small amount of a secondary phase, LiTiO2 (LTO), has been incorporated as nanopillars that are vertically embedded in the LNBTO matrix. The new multifunctional nanocomposite thin film presents exotic highly anisotropic microstructure and properties, e.g., strong ferroelectricity, high optical transparency, anisotropic dielectric function, and strong optical nonlinearity evidenced by the second harmonic generation results. An optical waveguide structure based on the stacks of α-Si on SiO2/LNBTO–LTO has been fabricated, exhibiting low optical dispersion with an optimized evanescent field staying in the LNBTO–LTO active layer. Lastly, this work highlights the combination of new TTB material designs and vertically aligned nanocomposite structures for further enhanced anisotropic and nonlinear properties.},
doi = {10.1021/acsami.0c03487},
url = {https://www.osti.gov/biblio/1619240}, journal = {ACS Applied Materials and Interfaces},
issn = {1944-8244},
number = 20,
volume = 12,
place = {United States},
year = {2020},
month = {4}
}

Journal Article:
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