Journal of Inorganic Materials ›› 2016, Vol. 31 ›› Issue (1): 21-26.DOI: 10.15541/jim20150249
• Orginal Article • Previous Articles Next Articles
ZHAO Hai-Lei, CUI Bo, WANG Hong-Zhi, LI Yao-Gang, ZHANG Qing-Hong
Received:
2015-05-25
Revised:
2015-07-05
Published:
2016-01-20
Online:
2015-12-15
About author:
ZHAO Hai-Lei. E-mail: 15026583062@163.com
Supported by:
CLC Number:
ZHAO Hai-Lei, CUI Bo, WANG Hong-Zhi, LI Yao-Gang, ZHANG Qing-Hong. Synthesis and Properties of Nanobelt CaSi2O2N2: Eu0.052+ Fluorescence Fibers[J]. Journal of Inorganic Materials, 2016, 31(1): 21-26.
Fig. 3 XRD patterns of the fiber precursor samples nitridized at different temperatures (a) and FE-SEM image (b), digital photo (c), and digital photo under purple light (d) of nanobelt fiber mat after nitridized at 1250℃
Fig. 4 TGA curves of the fiber precursor sample (a) and strength curve through three point bending test of the nanobelt fiber mat after nitridating under 1250℃
Fig. 6 Photoluminescence spectra of the Ca0.95Si2O2N2: Eu0.05 phosphor fiber mat nitridized at different temperatures (a) and nitridized at 1250℃ for different time (b)
Fig. 7 Digital pictures of the LEDs encapsulated with Ca0.95Si2O2N2: Eu0.05 nanobelt phosphor fiber mats and the chromaticity coordinates (a, b) Commercial lighting blue chip; (c, d) Encapsulated LEDs A and B; (e) The chromaticity coordinates
Sample | Correlated color temperature/K | CIE value | Color rendering index | Efficacy/(lm·W-1) |
---|---|---|---|---|
Phosphor powder | 5349 | (0.3421, 0.3615) | 82 | 80.5 |
Sample B | 4832 | (0.3510, 0.3985) | 86 | 125.0 |
Table 1 Electroluminescence properties of LED lamps fabricated with Ca0.95Si2O2N2: Eu0.05 nanobelt phosphor fiber mat and Ca0.95Si2O2N2: Eu0.05 powder
Sample | Correlated color temperature/K | CIE value | Color rendering index | Efficacy/(lm·W-1) |
---|---|---|---|---|
Phosphor powder | 5349 | (0.3421, 0.3615) | 82 | 80.5 |
Sample B | 4832 | (0.3510, 0.3985) | 86 | 125.0 |
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