Surface plasmon on topological insulator/dielectric interface enhanced ZnO ultraviolet photoluminescence
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2012Access:
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Liao, Z.-M., Han, B.-H., Wu, H.-C., Yashina, L.V., Yan, Y., Zhou, Y.-B., Bie, Y.-Q., (...), Yu, D.-P.e, Surface plasmon on topological insulator/dielectric interface enhanced ZnO ultraviolet photoluminescence, AIP Advances, 2, 2, 2012, art. no. 022105Download Item:
Abstract:
It has recently been predicted that the surface plasmons are allowed to exist on the
interface between a topological insulator and vacuum. Surface plasmons can be
employed to enhance the optical emission from various illuminants. Here, we study
the photoluminescence properties of the ZnO/Bi2Te3 hybrid structures. Thin flakes
of Bi2Te3, a typical three-dimensional topological insulator, were prepared on ZnO
crystal surface by mechanical exfoliation method. The ultraviolet emission from
ZnO was found to be enhanced by the Bi2Te3 thin flakes, which was attributed
to the surface plasmon ? photon coupling at the Bi2Te3/ZnO interface.
Author's Homepage:
http://people.tcd.ie/ivchvetshttp://people.tcd.ie/fleisck
http://people.tcd.ie/wuh2
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