Luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid state reaction method
p. 59-68
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oai:112.137.131.14:VNU_123-581302017-09-30T20:24:10Z Luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid state reaction method Sahu, Ishwar Prasad Bisen, D.P. Tamrakar, Raunak Kumar Murthy, K.V.R. Mohapatra, M. Monoclinic Color purity Quantum efficiency Stress sensor Piezo-electricity p. 59-68 Europium doped strontium meta-silicate (namely SrSiO3:Eu3+) phosphor was prepared by a high tem-perature solid state reaction method. The sintered SrSiO3:Eu3+ phosphor possesses a monoclinic struc-ture by the XRD. Energy dispersive X-ray spectrum (EDS) confirms the presence of elements in the desired sample. Thermoluminescence (TL) kinetic parameters such as activation energy (E), order of kinetics (b), and frequency factor (s) were calculated by the peak shape method. The orangeered emission was shown to originate from the 5D0-7FJ (J=0, 1, 2, 3, 4) transitions of Eu3+ ions as the sample was excited at 396 nm. The SrSiO3:Eu3+ phosphor with almost pure orange-red color purity (99.62%) shows the quantum efficiency of 10.2% (excited by 396 nm), which is higher than those of commercial red phosphors Y2O3:Eu3+ and Y2O2S:Eu3+ with quantum efficiencies of 9.6% (excited by 394 nm) and 4.2% (excited by 395 nm), respectively. Mechanoluminescence (ML) intensity of the SrSiO3:Eu3+ phos-phor was also found to increase linearly with increasing the impact velocity of the moving piston, suggesting that the discussed phosphor can be used as a stress sensor. 2017-08-24T02:23:07Z 2017-08-24T02:23:07Z 2017 Article 2468-2284 http://repository.vnu.edu.vn/handle/VNU_123/58130 other application/pdf H. : ĐHQGHN |
| institution |
Vietnam National University, Hanoi |
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VNU Library & Information Center |
| country |
Vietnam |
| collection |
VNU Digital Repository |
| language |
other |
| topic |
Monoclinic Color purity Quantum efficiency Stress sensor Piezo-electricity |
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Monoclinic Color purity Quantum efficiency Stress sensor Piezo-electricity Sahu, Ishwar Prasad Bisen, D.P. Tamrakar, Raunak Kumar Murthy, K.V.R. Mohapatra, M. Luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid state reaction method |
| description |
p. 59-68 |
| format |
Article |
| author |
Sahu, Ishwar Prasad Bisen, D.P. Tamrakar, Raunak Kumar Murthy, K.V.R. Mohapatra, M. |
| author_facet |
Sahu, Ishwar Prasad Bisen, D.P. Tamrakar, Raunak Kumar Murthy, K.V.R. Mohapatra, M. |
| author_sort |
Sahu, Ishwar Prasad |
| title |
Luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid state reaction method |
| title_short |
Luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid state reaction method |
| title_full |
Luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid state reaction method |
| title_fullStr |
Luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid state reaction method |
| title_full_unstemmed |
Luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid state reaction method |
| title_sort |
luminescence studies on the europium doped strontium metasilicate phosphor prepared by solid state reaction method |
| publisher |
H. : ĐHQGHN |
| publishDate |
2017 |
| url |
http://repository.vnu.edu.vn/handle/VNU_123/58130 |
| _version_ |
1680963947227774976 |