Abstract：Plate-shaped ZnO nanocrystals are prepared by a facile and environmentally friendly molten salt method, in which Zn5(CO3)2(OH)6 nanorods are first synthesized via a facile one-step, solid-state reaction route at room temperature and then decomposed in NaCl flux. Photoluminescence property demonstrates that the as-prepared plate-shaped ZnO nanocrystals exhibit a strong blue emission centered at about 483 nm. Raman scattering spectrum reveals that the as-prepared plate-shaped ZnO nanocrystals have the oxygen deficiency, which can be confirmed by the appearance of oxygen-deficiency-related vibrational mode at 583 cm?1 in the Raman spectrum. The oxygen deficiency existing in the plate-shaped ZnO nanocrystals results in the formation of the oxygen vacancy, which is most likely responsible for the strong blue emission of the plate-shaped ZnO nanocrystals. These new plate-shaped ZnO nanocrystals with strong blue emission are expected to show considerable potential applications in luminescence, lasing and optoelectronic devices.
. [J]. 中国物理快报, 2014, 31(09): 97802-097802.
WANG Wen-Zhong, LIANG Yu-Jie, SHI Hong-Long, ZHANG Gu-Ling. Optical Properties of Plate-Shaped ZnO Nanocrystals Grown by a Facile and Environmentally Friendly Molten Salt Method. Chin. Phys. Lett., 2014, 31(09): 97802-097802.
2014, Vol. 31 
