Synthesis and Optical Properties of Hollow Spheres Self-Assembled by ZnO Nanocrystals

Abstract:

Nano-sized hollow spheres self-assembled by ZnO nanocrystals have been prepared by microemulsion method with dodecyl benzene sulfonic acid sodium salt (DBS) as the modifying and protecting agent. The product was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high High-resolution electron microscopy (HRTEM) energy dispersive spectroscopy (EDS) and photoluminescence (PL) spectra. The results showed that the hollow sphere was composed of ZnO nanocrystals. And the PL spectrum showed a different emission at 438 nm. After heated the product, PL emission peak changed. A possible formation mechanism was also proposed.

• Periodical: Advanced Materials Research (Volumes 236-238)
• Pages: 2019-2023
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.236-238.2019
• Online since: May 2011
• Authors: Xiao Min Meng, Ai Min He
• Keywords: Hollow Spheres, Mechanism, Microemulsion

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