Nanoscale Research Letters (Sep 2021)

Multicolor Emission from Ultraviolet GaN-Based Photonic Quasicrystal Nanopyramid Structure with Semipolar In x Ga1−x N/GaN Multiple Quantum Wells

  • Cheng-Chang Chen,
  • Hsiang-Ting Lin,
  • Shih-Pang Chang,
  • Hao-Chung Kuo,
  • Hsiao-Wen Hung,
  • Kuo-Hsiang Chien,
  • Yu-Choung Chang,
  • M. H. Shih

DOI
https://doi.org/10.1186/s11671-021-03576-1
Journal volume & issue
Vol. 16, no. 1
pp. 1 – 8

Abstract

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Abstract In this study, we demonstrated large-area high-quality multi-color emission from the 12-fold symmetric GaN photonic quasicrystal nanorod device which was fabricated using the nanoimprint lithography technology and multiple quantum wells regrowth procedure. High-efficiency blue and green color emission wavelengths of 460 and 520 nm from the regrown In x Ga1−x N/GaN multiple quantum wells were observed under optical pumping conditions. To confirm the strong coupling between the quantum well emissions and the photonic crystal band-edge resonant modes, the finite-element method was applied to perform a simulation of the 12-fold symmetry photonic quasicrystal lattices.

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