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Near UV and blue-based LED fabricated with Ca 8 Zn ( SiO 4 ) 4 Cl 2 : Eu 2 + as green-emitting phosphor
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hao, Zhendong Zhang, X.-B. Wang, Xiaojun Zhang, Jiahua |
| Copyright Year | 2011 |
| Abstract | Green-emitting phosphor Ca8Zn(SiO4)4Cl2:Eu 2+ has been prepared by the solid state reaction method and there luminescence properties are investigated. The excitation spectrum of Ca8Zn(SiO4)4Cl2:Eu shows an intense excitation band in the blue centered at 450 nm and emits with a maximum at 505 nm. The concentration quenching mechanism is studied and verified to be the energy transfer among the nearest-neighbor ions. Upon 450 nm excitation, the emission intensity of Ca8Zn(SiO4)4Cl2:Eu is much stronger than the green emitting Ca3SO4Cl2:Eu phosphor and even higher than YAG:Ce. This excitation spectrum range matches UV and blue light-emitting diodes (LEDS) chips very well, suggesting Ca8Zn(SiO4)4Cl2:Eu could be a promising green emitting phosphor candidate for LED devices. 2011 Elsevier B.V. All rights reserved. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ir.ciomp.ac.cn/bitstream/181722/24731/1/Lu-2011-Near%20UV%20and%20blue-bas.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
