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苯甲酰水杨酸铽的合成与发光特性研究
Luminescence Properties of Rare Earth Complexes Tb(BSA)4
【摘要】 合成了一类以苯甲酰水杨酸(BenzoylSalicylicAcid,BSA)为配体的稀土铽配合物,将导电高分子材料PVK引入到配合物中,制成了结构为ITO PVK :Tb(BSA) 4 LiF Al的电致发光器件。并对该配合物的吸收特性及电致发光和光致发光性能进行了研究,实验数据表明,在PVK与Tb(BSA) 4之间存在着能量传递,在电致发光中,PVK的发光完全被抑制,这与光致发光的表现不同,这是由于两种发光(光致和电致)机理不同造成的。文章同时比较了几种不同PVK掺杂浓度对于器件性能的影响。
【Abstract】 A new rare earth complex Tb(BSA)4 was synthesized and studied. Pure green and narrow band emission was generated from the device with structure ITO/PVK:Tb(BSA )4/Alq3/LiF/Al, where PVK was used to improve the film-formation and hole- transport property of the Tb(BSA)4. The absorption mechanism, and the photolum inescence and electroluminescence mechanisms are discussed. It has been proved that there exists energy transfer from PVK to Tb(BSA)4 and the mechanisms of photo luminescence and electroluminescence are different. The effect of different rati os of PVK on the device characteristics is also studied.
【Key words】 Rare earth; Tb(BSA)4; Energy transfer; Electroluminescence;
- 【文献出处】 光谱学与光谱分析 ,Spectroscopy and Spectral Analysis , 编辑部邮箱 ,2005年06期
- 【分类号】O627.53
- 【被引频次】3
- 【下载频次】171