Preparation and Luminescence Property of Red-Emitting Hardystonite Phosphors by Near-Ultraviolet Irradiation

Abstract

A1.95ZnSi2O7:Eu0.053+ (A=Ca, Sr, Ba) red phosphors were prepared by combustion‐assisted synthesis method and their efficient red emission under near ultraviolet (UV) were observed. The luminescence and crystallinity were investigated using luminescence spectrometry and X‐ray diffractometer, respectively. The emission spectrum shows that the most intense peak is located at 614 nm, which corresponds to the 5D0→7F2 transition of Eu3+. These phosphors have two main excitation peaks located at 394 and 465 nm, which match the emission of UV and blue light‐emitting diodes, respectively. Thus, these phosphors could be used as red components for white light‐emitting diodes.

Nanomaterials via solution combustion synthesis: a step nearer to controllability

“…20 The advantages of SCS can be summarized as follows: 15,16,21 (1) time and energy efficient; (2) the equipment is simple and the raw materials are usually less expensive; (3) a molecular level mixing for the raw materials; and (4) the composition of products can be tuned. Thanks to such merits, SCS has been adopted to fabricate various materials for many applications of catalysis, [22][23][24][25][26][27][28][29][30] luminescent materials, [31][32][33][34][35][36] fuel cells, [37][38][39] energy conversion, [40][41][42] and energy storage. [43][44][45][46] Complicated Garnets are also widely synthesized by SCS.…”