Research Reports on Materials Engineering from Korea Advanced Institute of Science & Technology Provide New Insights

摘要

2011 DEC 28 - "A new composition of red strontium aluminate phosphor (Sr4Al2O7:Eu3+, Eu2+) is synthesized using a solid state reaction method in air and in a reducing atmosphere," investigators in Taejon, South Korea report. "The investigation of firing temperature indicates that a single phase of Sr4Al2O7 is formed when the firing temperature is higher than 1300 degrees C and that a Sr3Al2O6 phase is formed as the main peak below 1300 degrees C. The effects of firing temperature and doping concentration on luminescent properties are investigated. Sr4Al2O7 phosphors exhibit the typical red luminescent properties of Eu3+ and Eu2+," wrote S.J. Kim and colleagues, Korea Advanced Institute of Science & Technology.