Abstract
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.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
