Novel self-assembled two-dimensional layered oxide structure incorporated with Au nanoinclusions towards multifunctionalities
作者机构：School of Materials EngineeringPurdue UniversityWest LafayetteIN 47907USA Center for Integrated Nanotechnologies(CINT)Los Alamos National LaboratoryLos AlamosNM 87545USA Sandia National LaboratoriesAlbuquerqueNM 87185USA School of Electrical and Computer EngineeringPurdue UniversityWest LafayetteIN 47907USA Thermo Fisher ScientificHillsboroOR 97124USA
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2023年第16卷第1期
页 面：1465-1472页
核心收录：
学科分类：07[理学] 0806[工学-冶金工程] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0701[理学-数学] 0702[理学-物理学]
基 金：This work was supported by the U.S.Department of Energy Office of Science Basic Energy Sciences(BES)under Award DESC0020077.D.Z. J.S. Z.S. and H.W.acknowledge the support from the U.S.Office of Naval Research under contract Nos.N00014-20-1-2043 for the TEM work and N00014-20-1-2600 for the thin film growth effort.The work at Los Alamos National Laboratory was supported by the NNSA’s Laboratory Directed Research and Development Program and was performed in part at the Center for Integrated Nanotechnologies an Office of Science User Facility operated for the U.S.Department of Energy Office of Science.Los Alamos National Laboratory an affirmative action equal opportunity employer is managed by Triad National Security LLC for the U.S.Department of Energy’s NNSA under contract 89233218CNA000001.
主 题：layered oxides plasmonic strain anisotropy multifunctionality
摘 要：Two-dimensional(2D)layered oxides have recently attracted wide attention owing to the strong coupling among charges,spins,lattice,and strain,which allows great flexibility and opportunities in structure designs as well as multifunctionality exploration.In parallel,plasmonic hybrid nanostructures exhibit exotic localized surface plasmon resonance(LSPR)providing a broad range of applications in nanophotonic devices and sensors.A hybrid material platform combining the unique multifunctional 2D layered oxides and plasmonic nanostructures brings optical tuning into the new level.In this work,a novel self-assembled Bi2MoO6(BMO)2D layered oxide incorporated with plasmonic Au nanoinclusions has been demonstrated via one-step pulsed laser deposition(PLD)technique.Comprehensive microstructural characterizations,including scanning transmission electron microscopy(STEM),differential phase contrast imaging(DPC),and STEM tomography,have demonstrated the high epitaxial quality and particle-in-matrix morphology of the BMO-Au nanocomposite film.DPC-STEM imaging clarifies the magnetic domain structures of BMO matrix.Three different BMO structures including layered supercell(LSC)and superlattices have been revealed which is attributed to the variable strain states throughout the BMO-Au film.Owing to the combination of plasmonic Au and layered structure of BMO,the nanocomposite film exhibits a typical LSPR in visible wavelength region and strong anisotropy in terms of its optical and ferromagnetic properties.This study opens a new avenue for developing novel 2D layered complex oxides incorporated with plasmonic metal or semiconductor phases showing great potential for applications in multifunctional nanoelectronics devices.
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