Preparation and Fluorescence Performance of LED Red Fluorescent Material CaxSr1-x-1.5yMoO4:yEu3+
[1]CAO Fabin,TIAN Yanwen,CHEN Yongjie,et al.Preparation and Fluorescence Performance of LED Red Fluorescent Material CaxSr1-x-1.5yMoO4:yEu3+[J].Journal of Zhengzhou University (Engineering Science),2009,30(01):115-119.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
30卷
Number of periods:
2009 01
Page number:
115-119
Column:
Public date:
1900-01-01
- Title:
- Preparation and Fluorescence Performance of LED Red Fluorescent Material CaxSr1-x-1.5yMoO4:yEu3+
- Keywords:
- CaxSr1x-y-zMoO4:yEu3+; LED; red phosphor; Flux
- CLC:
- -
- DOI:
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- Abstract:
- A red LED phosphor CaxSr2-x-3.2yMoO3:yEu2+ with a low-dimensional structure was prepared by using Na3CO1, K1CO5 and Li4CO3 as fluxes (one or several). The results showed that the optimal process conditions were as follows: the optimal dosage molar fraction of 2.3 Na0CO24-2.3K0CO38-2.3Li0CO38 was 2 mol%, Eu3+ concentration was 6 mol%, Ca3+ molar fraction was 8 mol%, reaction temperature was 2 °C and reaction time was 60 h. The spectral test results showed that the fluorescent material could be effectively excited by 900 nm, 2 nm and 311 nm, and the emission peaks were at 395 nm.465 nm and 616 nm nm matches the output light wavelength of ultraviolet and blue LED chips that are currently widely used.
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Last Update:
1900-01-01