Significant improvement of near-UV electroluminescence from ZnO quantum dot LEDs via coupling with carbon nanodot surface plasmons

Short-wavelength LEDs, a hot research topic in modern optoelectronics, have attracted tremendous attention in recent years because of their great application potential in both civil and military domains

Cen Zhang; Feifei Zhu; Haiyang Xu; Weizhen Liu; Liu Yang; Zhongqiang Wang; Jiangang Ma; Zhenhui Kang; Yichun Liu

2017

Scholarcy highlights

  • Short-wavelength LEDs, a hot research topic in modern optoelectronics, have attracted tremendous attention in recent years because of their great application potential in both civil and military domains
  • Time-resolved spectroscopy studies reveal that the observed luminescence enhancement arises due to the resonant coupling between ZnO excitons and carbon nanodot SPs
  • The current study demonstrates a feasible way to acquire near-UV emission from all-inorganic quantum dot LEDs, and provides an effective strategy to enhance the EL intensity of these QD light emitters, which can further be extended to other types of light-emitting devices to improve EL efficiency

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