Research output: Contribution to journal › Article › peer-review
A novel thermally stable Ba 3 Bi 2 (BO 3 ) 4 :Eu 3+ red phosphor for solid state lighting application. / Shablinski, A.P.; Kolesnikov, I.E.; Bubnova, R.S.; Povolotskiy, A.V.; Lähderanta, Е.; Filatov, S.K.
In: Journal of Luminescence, Vol. 216, 116714, 12.2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - A novel thermally stable Ba 3 Bi 2 (BO 3 ) 4 :Eu 3+ red phosphor for solid state lighting application
AU - Shablinski, A.P.
AU - Kolesnikov, I.E.
AU - Bubnova, R.S.
AU - Povolotskiy, A.V.
AU - Lähderanta, Е.
AU - Filatov, S.K.
PY - 2019/12
Y1 - 2019/12
N2 - This paper reports the structural and optical properties of novel Ba3Bi2(BO3)4:Eu3+ red-emitting phosphor. Concentration series of Ba3Bi2(BO3)4:Eu3+ powders were prepared using crystallization from a melt. Powder X-ray diffraction data confirmed formation of single phase samples. Distribution of Eu3+ ions over three cation sites were refined for Ba3(Bi1-xEuх)2(BO3)4 solid solutions (x = 0.05, 0.35 and 0.8) from single-crystal XRD data. Emission and excitation spectra of Eu3+-doped Ba3Bi2(BO3)4 phosphors show characteristic lines attributed to the intraconfigurational 4f-4f transitions. The optimal Eu3+ doping concentration in Ba3Bi2(BO3)4 host was found to be 50 at.%, whereas concentration quenching phenomenon occurred through dipole-dipole interaction. 5D0 lifetime slightly changed with increase of doping concentration, showing average value of 1.64 ms. The CIE chromaticity coordinates of Ba3Bi2(BO3)4:Eu3+ 50 at.% phosphor was determined to be (0.65, 0.35) which is close to the NTSC standard values (0.67, 0.33) for potential red phosphors. The obtained results show that the Ba3Bi2(BO3)4:Eu3+ phosphors are promising candidates for solid state lighting application.
AB - This paper reports the structural and optical properties of novel Ba3Bi2(BO3)4:Eu3+ red-emitting phosphor. Concentration series of Ba3Bi2(BO3)4:Eu3+ powders were prepared using crystallization from a melt. Powder X-ray diffraction data confirmed formation of single phase samples. Distribution of Eu3+ ions over three cation sites were refined for Ba3(Bi1-xEuх)2(BO3)4 solid solutions (x = 0.05, 0.35 and 0.8) from single-crystal XRD data. Emission and excitation spectra of Eu3+-doped Ba3Bi2(BO3)4 phosphors show characteristic lines attributed to the intraconfigurational 4f-4f transitions. The optimal Eu3+ doping concentration in Ba3Bi2(BO3)4 host was found to be 50 at.%, whereas concentration quenching phenomenon occurred through dipole-dipole interaction. 5D0 lifetime slightly changed with increase of doping concentration, showing average value of 1.64 ms. The CIE chromaticity coordinates of Ba3Bi2(BO3)4:Eu3+ 50 at.% phosphor was determined to be (0.65, 0.35) which is close to the NTSC standard values (0.67, 0.33) for potential red phosphors. The obtained results show that the Ba3Bi2(BO3)4:Eu3+ phosphors are promising candidates for solid state lighting application.
KW - Concentration quenching
KW - Crystal structure
KW - Eu
KW - Luminescence
KW - Optical material
KW - Thermal stability
UR - http://www.scopus.com/inward/record.url?scp=85071583531&partnerID=8YFLogxK
U2 - 10.1016/j.jlumin.2019.116714
DO - 10.1016/j.jlumin.2019.116714
M3 - Article
VL - 216
JO - Journal of Luminescence
JF - Journal of Luminescence
SN - 0022-2313
M1 - 116714
ER -
ID: 47833524