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将新型稀土配合物TbY(m MBA) 6 (phen) 2 ·2H2 O掺杂到导电聚合物PVK中改善了配合物的成膜性和导电性,作为发光层应用于有机电致发光。分别制作了器件(1) :ITO PVK :TbY(m MBA) 6 (phen) 2 ·2H2 O LiF Al和以Alq为电子传输层的器件(2 ) :ITO PVK :TbY(m MBA) 6 (phen) 2 ·2H2 O Alq LiF Al。研究了两种器件的电致发光性能,得到了最大效率为0 88cd·A- 1 的器件。研究了铽配合物与PVK共掺杂体系的激发光谱和光致发光谱,发现两者之间存在着能量转移,说明Y3+ 的存在促进了PVK到Tb3+ 的能量传递。文章就器件的发光特性和掺杂体系的能量传递进行了初步讨论。
The new rare earth complex TbY (m MBA) 6 (phen) 2 · 2H2 O is doped into the conductive polymer PVK to improve the film formability and conductivity of the complex, which is used as a light-emitting layer for organic electroluminescence. (1): ITO PVK: TbY (m MBA) 6 (phen) 2 · 2H 2 O LiF Al and a device with Alq as the electron transport layer (2): ITO PVK: TbY ) 2 · 2H 2 O Alq LiF Al. The electroluminescent properties of the two devices were studied and the device with maximum efficiency of 0 88 cd · A -1 was obtained. The excitation and photoluminescence spectra of terbium complex and PVK co-doped system were studied. It is found that there exists energy transfer between them, indicating that the presence of Y3 + promotes the energy transfer from PVK to Tb3 +. In this paper, the luminescent properties of the device and the energy transfer of the doped system are discussed preliminarily.