Chinese Optics Letters, 2012, 10 (2): 021601, Published Online: Aug. 29, 2011
V-doped MgAl6O10: novel luminescence substrate for phosphor-free UV-white LEDs Download: 659次
Abstract
V-doped MgAl6O10 is grown by the conventional Czochralski method. The crystal structure and the cell parameters are analyzed through X-ray diffraction experiments. The absorption and emission spectra are investigated. Under pumping at 324 nm, the emission spectra of V-doped MgAl6O10 obtain two emission peaks at the wavelengths of 471 and 570 nm. Two emission bands of the spectra combine to produce a spectrum that is perceived as white by the naked eye. Therefore, V-doped MgAl6O10 single crystal can be applied as substrate for phosphor-free ultraviolet (UV)-white light-emitting diodes (LEDs).
Peng Xu, Changtai Xia, Feng Wu, Xing Li, Qinglin Sai, Guoqing Zhou, Xiaodong Xu. V-doped MgAl6O10: novel luminescence substrate for phosphor-free UV-white LEDs[J]. Chinese Optics Letters, 2012, 10(2): 021601.