Preparation and performance of a new type of blue light-emitting material δ-Alq3
Preparation and performance of a new type of blue light-emitting material δ-Alq3
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DOI：
10.1016/j.jlumin.2006.01.254
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发表时间：
2007
影响因子：
3.6
通讯作者：
Bingshe Xu;Hua Wang;Yuying Hao;Zhixiang Gao;He-feng Zhou
中科院分区：
文献类型：
--
作者：
Bingshe Xu;Hua Wang;Yuying Hao;Zhixiang Gao;He-feng Zhou
本文采用一种新的方法合成了δ-Alq 3，它可以作为一种新型的蓝色发光材料。通过扫描电镜、紫外-可见吸收光谱、光致发光（PL）光谱和电致发光（EL）光谱研究了δ-Alq 3的性能。结果表明，δ-Alq 3的晶粒形状接近柱状，紫外-可见吸收光谱中电子从酚氧环的HOMO轨道跃迁到吡啶环的LUMO轨道的吸收带位于432 nm处，光学带隙为2.71eV，PL光谱中最大发射峰（λmax）位于480 nm处，EL光谱中λ max位于520 nm处。
In this article, δ-Alq3was synthesized by a novel method, which can act as a new type of blue light-emitting material. Performance of δ-Alq3was investigated by SEM, UV–vis absorption spectra, photoluminescence (PL) spectra and electroluminescence (EL) spectra. Finally, it was concluded that grain shape of δ-Alq3is close to column, absorption band of electron transition from HOMO orbit in phenoxide ring to LUMO orbit in pyridine ringis at 432nm in UV–vis absorption spectra of δ-Alq3, optical band gap of δ-Alq3is 2.71eV, the maximum emission peak (λmax) of δ-Alq3is at 480nm in PL spectra, λmaxof δ-Alq3is 520nm in EL spectra.