WANG Sanhai ¹, XU Yanqiao ¹, TANG Huidong ¹, CHEN Ting ^1,2, JIANG Weihui ^1,2, LIU Jianmin ², WANG Wenqiang ¹,WANG Lianjun ^2,3, JIANG Wan ^2,3

(1. Jingdezhen Ceramic Institute, Jingdezhen 333403, Jiangxi, China; 2. National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen 333001, Jiangxi, China; 3. College of Materials Science and Engineering, Donghua University, Shanghai 201620, China)

Abstract: Phosphors, as a key material in the white LED systems, directly affect the overall luminous performance of the lighting devices. Comparatively, perovskite structured oxide phosphors have more diversified structure and composition compared with those with other structures, so that they can provide a flexible local coordination environment for different active ions, so as to achieve excellent luminescence performances. Therefore, perovskite structured oxide phosphors are ideal luminescent materials for application prospects in white LEDs. This article is aimed to offer an overview on the latest research progress of perovskite structure oxide phosphors in blue, green, yellow and red emission, covering common active ions such as Bi³⁺, Eu²⁺/Eu³⁺, Ce³⁺ and Mn⁴⁺. The factors affecting the luminescence performances of the active ions in the perovskite structure and the design strategies of the perovskite structured oxide are discussed in detail. Finally, the challenges encountered in the application of perovskite structured oxide phosphor are summarized and the direction of future development is forecasted.
Key words: white LED; perovskite structured oxide; phosphor