Synthesis and Photoluminescence of Cr-Doped Rod-Like ZnO Particles by Hydrothermal Method
Cr-doped rod-like ZnO particles with nominal 3 at% doping concentration were synthesized by hydrothermal method. The structural and optical properties of the sample were investigated by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and photoluminescence (PL). The results show that the as-synthesized product is of hexagonal wurtzite structure without metallic Cr or other secondary phases and the morphology of the ZnO particles is rod shaped. The room-temperature PL spectrum of the Cr-doped rod-like ZnO particles exhibits a strong blue emission at 440nm and two weak emission bands centered at 410nm and 565nm, respectively.
Shiquan Liu and Min Zuo
L. M. Hang et al., "Synthesis and Photoluminescence of Cr-Doped Rod-Like ZnO Particles by Hydrothermal Method", Advanced Materials Research, Vols. 306-307, pp. 176-179, 2011