Synthesis, characterization, and optical properties of Mg-doped zinc oxide single-crystal microprisms

• Published in: Physica status solidi. A, Applications and materials science Applications and materials science, 2011-01, Vol.208 (1), p.136-139
• Main Authors: Li, Junlin, Zhuang, Huizhao, Wang, Jie, Xu, Peng
• Format: Article
• Language: English
• Subjects: chemical vapor deposition; Condensed matter: electronic structure, electrical, magnetic, and optical properties; doping; Exact sciences and technology; Ii-vi semiconductors; microprisms; nanostructures; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of specific thin films; photoluminescence; Physics; ZnO
• ISSN: 1862-6300; 1862-6319
• DOI: 10.1002/pssa.201026448

Novel zinc oxide (ZnO) microprisms doped with Mg have been synthesized on Mg (NO3)2‐coated Si (111) substrates successfully by a thermal chemical vapor deposition method. The as‐prepared Mg‐doped zinc oxide single‐crystal microprisms were characterized with X‐ray diffraction (XRD), scanning electron microscopy (SEM), high‐resolution transmission electron microscopy (HRTEM), and photoluminescence (PL). The results show that the microstructures consist of hexagonal pyramids tips and hexagonal prisms. The whole structure is a perfect single crystal and has preferred growth along the [0001] direction. PL reveals ultraviolet (UV) emission at 388 nm and a strong green light emission peak at 500 nm. Mg‐doped microprisms will provide an improvement for novel electronic and optical devices. In addition, the growth mechanism of the special Mg‐doped ZnO microstructure is proposed based on a solid–vapor approach.