Multiband Hot Photoluminescence from Nanocavity-Embedded Silicon Nanowire Arrays with Tunable Wavelength

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

4 Scopus Citations
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Author(s)

  • Zhiqiang Mu
  • Haochi Yu
  • Miao Zhang
  • Aimin Wu
  • Gongmin Qi
  • Zhenghua An
  • Zengfeng Di
  • Xi Wang

Detail(s)

Original languageEnglish
Pages (from-to)1552-1558
Journal / PublicationNano Letters
Volume17
Issue number3
StatePublished - 8 Mar 2017

Abstract

Besides the well-known quantum confinement effect, hot luminescence from indirect bandgap Si provides a new and promising approach to realize monolithically integrated silicon optoelectronics due to phonon-assisted light emission. In this work, multiband hot photoluminescence is generated from Si nanowire arrays by introducing trapezoid-shaped nanocavities that support hybrid photonic-plasmonic modes. By continuously adjusting the geometric parameters of the Si nanowires with trapezoidal nanocavities, the multiband hot photoluminescence can be tuned in the range from visible to near-infrared independent of the excitation laser wavelength. The highly tunable wavelength bands and concomitant compatibility with Si-integrated electronics enable tailoring of silicon-based light sources suitable for next-generation optoelectronics devices.

Research Area(s)

  • Hot luminescence, nanocavities, resonance mode, Si nanowires, surface plasmon, tunable wavelength

Citation Format(s)

Multiband Hot Photoluminescence from Nanocavity-Embedded Silicon Nanowire Arrays with Tunable Wavelength. / Mu, Zhiqiang; Yu, Haochi; Zhang, Miao; Wu, Aimin; Qi, Gongmin; Chu, Paul K.; An, Zhenghua; Di, Zengfeng; Wang, Xi.

In: Nano Letters, Vol. 17, No. 3, 08.03.2017, p. 1552-1558.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review