Equation of state for Eu-doped SrSi2O2N2
PBN-AR
Instytucja
Instytut Fizyki Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
en
Czasopismo
JOURNAL OF CHEMICAL PHYSICS
ISSN
0021-9606
EISSN
1089-7690
Wydawca
AMER INST PHYSICS
DOI
URL
Rok publikacji
2014
Numer zeszytu
1
Strony od-do
014705-1-8
Numer tomu
141
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
en
LIGHT-EMITTING-DIODES LUMINESCENCE PROPERTIES HIGH-PRESSURE SILICON-OXYNITRIDE GREEN PHOSPHOR WHITE LEDS PC-LEDS NITRIDE PHOSPHORS CRYSTAL-STRUCTURE REAL STRUCTURE
Streszczenia
Język
en
Treść
alpha-SrSi2O2N2 is one of the recently studied oxonitridosilicates applicable in optoelectronics, in particular in white LEDs. Its elastic properties remain unknown. A survey of literature shows that, up to now, nine oxonitridosilicate materials have been identified. For most of these compounds, doped with rare earths and manganese, a luminescence has been reported at a wavelength characteristic for the given material; all together cover a broad spectral range. The present study focuses on the elastic properties of one of these oxonitridosilicates, the Eu-doped triclinic alpha-SrSi2O2N2. High-pressure powder diffraction experiments are used in order to experimentally determine, for the first time, the equation of state of this compound. The in situ experiment was performed for pressures ranging up to 9.65 GPa, for Eu-doped alpha-SrSi2O2N2 sample mounted in a diamond anvil cell ascertaining the hydrostatic compression conditions. The obtained experimental variation of volume of the triclinic unit cell of alpha-SrSi2O2N2:Eu with rising pressure served for determination of the Birch-Murnaghan equation of state. The determined above quoted bulk modulus is 103(5) GPa, its first derivative is 4.5(1.1). The above quoted bulk modulus value is found to be comparable to that of earlier reported oxynitrides of different composition.
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Original article
Original article presents the results of original research or experiment.
Inne
System-identifier
PBN-R:675668
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