Random lasing from gold-doped zinc oxide nanorods

Abdullah Taha Ali, W. Maryam, Yu Wei Huang, H. C. Hsu, Naser M. Ahmed, H. Abu Hassan, N. Zainal

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

In this article, we report our investigation of random laser emission from Au-doped ZnO nanorods fabricated by chemical bath deposition (CBD) at different Au concentrations. The crystal structure, morphological variations, and optical properties of the nanorods were investigated. The crystallite size of the doped nanorods increased with Au concentration, indicating lattice expansion of ZnO after Au doping. Photoluminescence (PL) measurements revealed a broad emission centered at 570 nm which is attributable to the transitions associated with excess oxygen vacancies due to doping. The lowest threshold for lasing was observed at 32 mJ/cm2 of pump power with the spectral width of the lasing peak ∼0.18 nm from the sample with the highest Au atomic doping percentage (∼1.2 at.%). This study reveals a possible solution to lowering random lasing threshold by doping the gain material.

原文English
文章編號112776
期刊Optical Materials
132
DOIs
出版狀態Published - 2022 10月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 原子與分子物理與光學
  • 光譜
  • 物理與理論化學
  • 有機化學
  • 無機化學
  • 電氣與電子工程

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