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| 蓝光LD激发pc-WLED的发光性能 |
| Luminescence performance of pc-WLED excited by blue ray LD |
| 投稿时间：2023-04-03 |
| DOI：10.3969/j.issn.1005-5630.202304030081 |
| 中文关键词: 蓝光LD pc-WLED 荧光陶瓷片 LED |
| 英文关键词:blue ray LD pc-WLED fluorescent ceramic sheet LED |
| 基金项目: |
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| 中文摘要: |
| 为了提升白光LED的光源亮度，同时降低LED效率骤降的影响，采用了蓝光LD激发pc-WLED的技术方案。研究了荧光陶瓷片与反射基板的关系，并分析了不同掺杂的荧光陶瓷片的性能。对荧光陶瓷片进行封装后，进行了性能比较。最后，将不同掺杂的荧光陶瓷片装配到RC激光模组中进行了对比实验。从结果可知，GaN基蓝光LED芯片是非常理想的反射基板，最适用于照明的荧光陶瓷为4xAl2O3+(Ce0.01Y0.93Gd0.06)3Al5O12，因为其氧化铝含量高，热导率好，且该荧光陶瓷不仅可以进一步提升白光LED的光源亮度，而且可以减小LED效率骤降的影响。 |
| 英文摘要: |
| In order to improve the brightness of the white LED light source and reduce the impact of the sudden drop in LED efficiency, the blue ray LD can be used to excite pc-WLED. Then, we studied the relationship between fluorescent ceramic sheets and reflective substrates, and the performance of different-doping fluorescent ceramic sheets. The fluorescent ceramic sheets were packaged. The performance was compared. Finally, different doping fluorescent ceramic sheets were assembled into the RC laser module for comparison. The results show that GaN blue LED chip is a very ideal reflection substrate, and the most suitable fluorescent ceramic for lighting is 4xAl2O3+(Ce0.01Y0.93Gd0.06)3Al5O12, because of its high alumina content and good thermal conductivity. The fluorescent ceramic can not only further improve the brightness of white LED light source, but also reduce the impact of LED efficiency drop. |
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