Abstract
White light-emitting diodes (WLEDs) continue to gain scientific and commercial important in the present age of solid-state lighting. High power WLED components are required strong thermal stability because its generate heat during LED operation. Thus, the eventual performance of the WLEDs based on phosphors strongly depends on the luminescence properties of the phosphors. Therefore, it is highly desirable to find new phosphors with high efficiency and thermal stability. In this study, we report a new blue-emitting phosphor, the Eu2+-doped NASICON, which can be used to forbid thermal quenching of optical characteristic for WLEDs. The influence of isomorphic displacements on phase transition temperature and the change of photoluminescence intensity have been explored, and established their correlation. By fabricating of WLEDs, we explored for its potential suitability in WLED applications. This suggests that the phosphor displays great potential application as near-ultraviolet LEDs for white light generation, with high quality. Figure 1
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