Synthesis of nanocrystalline MMoO4 (M=Ni, Zn) phosphors via a citrate complex route assisted by microwave irradiation and their photoluminescence

• Published in: Materials letters Vol. 60; no. 13-14; pp. 1702 - 1705
• Main Authors: Ryu, Jeong Ho, Koo, Sang-Mo, Yoon, Jong-Won, Lim, Chang Sung, Shim, Kwang Bo
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2006
• Subjects: Citrate complex route; Microwave irradiation; MMoO4 (M = Ni, Zn); Photoluminescence; Microwave irradiation; Citrate complex route; MMoO4 (M=Ni, Zn); Photoluminescence
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2005.12.018

Nanocrystalline MMoO4 (M=Ni, Zn) phosphors, which have wolframite-type structure, were successfully synthesized at low temperatures via a modified citrate complex route assisted by microwave irradiation. The citrate complex precursors were heat-treated from 300 to 600 °C for 3 h. Crystallization of the MMoO4 (M=Ni, Zn) nanocrystallites were detected at 500 °C, and entirely completed at a temperature of 600 °C. The nanoparticles presented primarily dispersed and homogeneous morphology with particle size of 20–40 nm. The nanocrystalline MMoO4 (M=Ni, Zn) phosphors prepared at 600 °C exhibited broad luminescence in green and blue wavelength region, respectively.