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Prof. Hubert Huppertz image - Coggle Diagram
Prof. Hubert Huppertz
Stability
Chemical composition
Temperature
Pressure
Nitridosilicates Synthesis
Eu2Si5N8
Isotypic of Sr2Si5N8 and Ba2Si5N8
1st N-based phosphors may be practicle used
Oxygen contimination
All N-based LED!
Narrowband green
Red without IR-spillover
Replace N2 to O2
blue-shifted
broader band
SALON
Single crystal
Impossible ordered crystal!
Blue-shifted with narrower band
Powder
Slightly disorder occured
Unwanted peal raised
