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Intrinsically core-shell plasmonic dielectric nanostructures with ultrahigh refractive index

Journal Article


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Abstract


  • Topological insulators are a new class of quantum material

    s with metallic (edge) surface states and insulating bulk

    states. They demonstrate a variety of novel electronic and

    optical properties, which make them highly promising

    electronic, spintronic, and optoelectronic materials. We report on a novel conic plasmonic nanostructure that is made

    of bulk-insulating topological insulators and has an intrinsic

    core-shell formation. The insulating (dielectric) core of the

    nanocone displays an ultrahigh refractive index of up to 5.5 in the near-infrared frequency range. On the metallic shell,

    plasmonic response and strong backward light scattering were

    observed in the visible frequency range. Through in-

    tegrating the nanocone arrays into a-Si thin film solar cel

    ls, up to 15% enhancement of light absorption was predicted

    in the ultraviolet and visible ranges. With these unique features, the intrinsically core-shell plasmonic nanostructure

    paves a new way for designing low-loss and high-performance visible to infrared optical devices.

Authors


  •   Yue, Zengji
  •   Cai, Boyuan (external author)
  •   Wang, Lan (external author)
  •   Wang, Xiaolin
  •   Gu, Min (external author)

Publication Date


  • 2016

Citation


  • Yue, Z., Cai, B., Wang, L., Wang, X. & Gu, M. (2016). Intrinsically core-shell plasmonic dielectric nanostructures with ultrahigh refractive index. science advances, 2 (3), e150153-1-e150153-8.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2886&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1884

Start Page


  • e150153-1

End Page


  • e150153-8

Volume


  • 2

Issue


  • 3

Place Of Publication


  • United States

Abstract


  • Topological insulators are a new class of quantum material

    s with metallic (edge) surface states and insulating bulk

    states. They demonstrate a variety of novel electronic and

    optical properties, which make them highly promising

    electronic, spintronic, and optoelectronic materials. We report on a novel conic plasmonic nanostructure that is made

    of bulk-insulating topological insulators and has an intrinsic

    core-shell formation. The insulating (dielectric) core of the

    nanocone displays an ultrahigh refractive index of up to 5.5 in the near-infrared frequency range. On the metallic shell,

    plasmonic response and strong backward light scattering were

    observed in the visible frequency range. Through in-

    tegrating the nanocone arrays into a-Si thin film solar cel

    ls, up to 15% enhancement of light absorption was predicted

    in the ultraviolet and visible ranges. With these unique features, the intrinsically core-shell plasmonic nanostructure

    paves a new way for designing low-loss and high-performance visible to infrared optical devices.

Authors


  •   Yue, Zengji
  •   Cai, Boyuan (external author)
  •   Wang, Lan (external author)
  •   Wang, Xiaolin
  •   Gu, Min (external author)

Publication Date


  • 2016

Citation


  • Yue, Z., Cai, B., Wang, L., Wang, X. & Gu, M. (2016). Intrinsically core-shell plasmonic dielectric nanostructures with ultrahigh refractive index. science advances, 2 (3), e150153-1-e150153-8.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2886&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1884

Start Page


  • e150153-1

End Page


  • e150153-8

Volume


  • 2

Issue


  • 3

Place Of Publication


  • United States