Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 12, Issue 2, Pages J20-J23Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3039192
Keywords
etching; particle size; phosphors; photoluminescence; potassium compounds; silicon compounds
Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [20560290]
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A simple method of synthesizing red phosphor K2SiF6:Mn4+ is demonstrated. This method uses wet chemical etching of crushed quartz schist (QS) in a HF/KMnO4 solution. The synthesized phosphor has particle sizes of less than 10 mu m with porouslike morphology. The photoluminescence and photoluminescence excitation spectroscopy show no clear difference in the spectral feature between the crushed QS-synthesized phosphor and that from single-crystalline Si wafers.
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