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中文摘要：
利用蓝光LED芯片激发[Ru（dtb-bpy）3]2＋（PF6-）2和YAG混合荧光粉的方法制备了新型白光LED,研究了随着[Ru（dtb-bpy）3]2＋（PF6-）2含量的增加而引起的白光LED光谱特性的变化。当[Ru（dtb-bpy）3]2＋（PF6-）2的质量分数为1.5%时,白光LED的显色指数达到83.2,效率相对于其含量为0%时下降了约20%。另外,研究了结温对于一体化封装的该新型白光LED发光特性的影响,结果表明：高显色LED的结温从30℃上升到130℃的过程中,芯片的蓝光辐射出现了较大幅度的减少,共降低了27.73%,随之也导致该白光LED总发光强度的衰减,而且其发光效率出现了大幅度的下降,共衰减了31.76%,但是其显色性没有明显的变化。
英文摘要：
A new white LED was fabricated by irradiated the mixed fluorescent powder which contained [Ru（dtb-bpy）3]2＋（PF-6）2 and YAG.The relationship between white LED’ spectral and the [Ru（dtb-bpy）3]2＋（PF-6）2 content were investigated.When the mass fraction of [Ru（dtb-bpy）3]2＋（PF-6）2 was 1.5%,the White LED color-rending index reached 83.2 and its luminous efficiency was about 20% lower than those without [Ru（dtb-bpy）3]2＋（PF-6）2.Moreover,we studied the influence of junction temperature on the luminous properties of the integration package white LED.The results showed that the blue chip radiation reduced about 27.73% during LED’s junction temperature rising from 30 ℃ to 130 ℃.The white LED light intensity decreased and the luminous efficiency reduced 31.76%,while the color-rending was stability.
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