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。
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)/Alq(3)/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 photoluminescence and electroluminescence mechanisms are discussed. It has been proved that there exists energy transfer from PVK to Tb(BSA)(4) and the mechanisms of photoluminescence and electroluminescence are different. The effect of different ratios of PVK on the device characteristics is also studied.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2005年第6期828-831,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金(90201004)
北京交通大学校内基金(2001XM06)
北京市科委基金资助项目