摘要
用GaN基发光二极管(light—emitting diode.LED)与稀土发光材料组成的固体照明光源具有节能、寿命长、光效高、工作电压低、耗电量小、体积小、可平面封装、易于开发轻薄型产品等特点,被认为是21世纪的光源;另外,LED光源本身不含汞、铅等有害物质.无红外线和紫外线污染,不会在生产和使用中产生对外界的污染.是一种环境友好的光源。随着GaN基LED的发射波长向短波扩展,研究开发与GaN基管芯匹配的稀土发光材料受到广泛关注.
Eu^2+ -activated Ga2S3 phosphors were synthesized by solid-state reaction and their luminescence properties were studied with diffuse reflection spectroscopy, excitation spectra, emission spectra and fluorescence lifetime. The parameters of LED manufactured with phosphors Ga2S3:Eu^2+ were measured. The excitation spectra of these phosphors are broadband and can be matched with the emission wavelength of GaN chip.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2007年第5期933-936,共4页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.20171046)。
关键词
LED
荧光粉
硫化镓
铕
发光
LED
phosphor
, Ga2S3:Eu^2+
photoluminescence