Synthesis and photoluminescence properties of color-tunable BaLa2WO7:Eu3+ phosphor
作者： Shao-An Yan , Yee-Shin Chang , Weng-Sing Hwang , Yen-Hwei Chang , Masahiro Yoshimura
DOI: 10.1016/J.JALLCOM.2011.02.103
关键词: Analytical chemistry 、 Excited state 、 Phosphor 、 Optics 、 Emission intensity 、 Excitation 、 Chemistry 、 Chromaticity 、 Luminescence 、 Photoluminescence 、 Emission spectrum
摘要: Abstract Color-tunable phosphors BaLa 2− x Eu WO 7 were synthesized via a solid-state reaction. The absorption, excitation, emission and decay curves obtained to study the luminescence properties. experimental results indicate that have two regions in excitation spectra: one is assigned charge-transfer state (CTS) band at about 338 nm, other intra-4f transitions 360–600 nm. spectra of excited 395 nm exhibit series sharp peaks, which are attributed 5 D 0 → F J ( = 0, 1, 2, 3, 4) transitions. Luminescence from higher states, such as 1 , 2 3 also observed low 3+ concentration. optimal intensity red = 0.4 (BaLa 1.6 0.4 ). chromaticity coordinates vary with content white, orange-red, red, making it candidate for white-light-emitting phosphor UV-LEDs.
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sci-hub.se 参考文章(34)
Xiaoming Liu, Cuikun Lin, Jun Lin, White light emission from Eu3+ in CaIn2O4 host lattices Applied Physics Letters. ,vol. 90, pp. 081904- ,(2007) , 10.1063/1.2539632
Tomokatsu Hayakawa, Ai Hiramitsu, Masayuki Nogami, White light emission from radical carbonyl-terminations in Al2O3–SiO2 porous glasses with high luminescence quantum efficiencies Applied Physics Letters. ,vol. 82, pp. 2975- 2977 ,(2003) , 10.1063/1.1569038
Chun-Kuei Chang, Teng-Ming Chen, Sr3B2O6:Ce3+,Eu2+: A potential single-phased white-emitting borate phosphor for ultraviolet light-emitting diodes Applied Physics Letters. ,vol. 91, pp. 081902- ,(2007) , 10.1063/1.2772195
Chuang-Hung Chiu, Chih-Hsuan Liu, Sheng-Bang Huang, Teng-Ming Chen, Synthesis and Luminescence Properties of Intensely Red-Emitting M5Eu ( WO4 ) 4 − x ( MoO4 ) x ( M = Li , Na , K ) Phosphors Journal of The Electrochemical Society. ,vol. 155, ,(2008) , 10.1149/1.2825178
Chih-Hao Liang, Yee-Cheng Chang, Yee-Shin Chang, Synthesis and photoluminescence characteristics of color-tunable BaY2ZnO5:Eu3+ phosphors Applied Physics Letters. ,vol. 93, pp. 211902- ,(2008) , 10.1063/1.2998299
Qiuxia Li, Jiaping Huang, Donghua Chen, A novel red-emitting phosphors K2Ba (MoO4)2: Eu3+, Sm3+ and improvement of luminescent properties for light emitting diodes Journal of Alloys and Compounds. ,vol. 509, pp. 1007- 1010 ,(2011) , 10.1016/J.JALLCOM.2010.08.160
R. Praveena, Liang Shi, Kyoung Hyuk Jang, V. Venkatramu, C.K. Jayasankar, Hyo Jin Seo, Sol–gel synthesis and thermal stability of luminescence of Lu3Al5O12:Ce3+ nano-garnet Journal of Alloys and Compounds. ,vol. 509, pp. 859- 863 ,(2011) , 10.1016/J.JALLCOM.2010.09.113
Xinmin Zhang, Hyo Jin Seo, Luminescence properties of novel Sm3+, Dy3+ doped LaMoBO6 phosphors Journal of Alloys and Compounds. ,vol. 509, pp. 2007- 2010 ,(2011) , 10.1016/J.JALLCOM.2010.10.119
sungho choi, Byung-Yoon Park, Ha-Kyun Jung, Young-Min Moon, BaLa$_2$WO$_7$:Eu$^{3+}$ as a Novel Red-emitting Phosphor for UV LEDs Journal of the Korean Physical Society. ,vol. 57, pp. 169- 172 ,(2010) , 10.3938/JKPS.57.169
M.J.J. Lammers, H. Donker, G. Blasse, The luminescence of Eu3+, Tb3+ and Tm3+ activated Gd2BaZnO5 and La2BaZnO5 Materials Chemistry and Physics. ,vol. 13, pp. 527- 539 ,(1985) , 10.1016/0254-0584(85)90003-3