TY - JOUR
AU - Hintzen, H. T. J. M.
AB - A green phosphor, La0.4Ca13.3Eu0.3Mg2Si8O31.6+δN0.4−δ (LaCMSN:Eu2+), was prepared by a solid‐state reaction and an efficient green emission was observed at 506 nm under near‐ultraviolet (NUV) excitation. The structural and optical properties of LaCMSN:Eu2+ phosphors as well as their thermal quenching were investigated. The partial substitution of La3+ and N3− in Ca13.7Eu0.3Mg2Si8O32 led to a considerable enhancement in the peak emission intensity by as much as 194%. This demonstrates not only that the total number of Eu2+ activators increased, but also that the probability of a nonradiative transition between Eu2+ and Eu3+ could be reduced as the increase in concentration of the former is at the expense of the later. The white light‐emitting diode (LED) was fabricated using phosphor with a NUV LED chip. The LED showed warm white light with an excellent color rendering index of 91. The LaCMSN:Eu2+ is thus a potential green‐emitting phosphor for white LEDs.
TI - Enhanced Optical Properties of Bredigite‐Structure Ca 13.7 Eu 0.3 Mg 2 (SiO 4 ) 8 Phosphor: Effective Eu Reduction by La Co‐Doping
JO - Journal of the American Ceramic Society
DO - 10.1111/jace.14021
DA - 2016-02-01
UR - https://www.deepdyve.com/lp/wiley/enhanced-optical-properties-of-bredigite-structure-ca-13-7-eu-0-3-mg-2-C3gl09GMDq
SP - 557
EP - 563
VL - 99
IS - 2
DP - DeepDyve
ER -