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中文摘要：
基于新型聚合物白光材料PF-DTFO制备了一种聚合物白光发光二极管（PWOLED），通过在聚合物发光层中掺杂蓝光磷光染料FIrpic，利用磷光敏化发光原理，改善器件电致发光性能。在敏化PWOLED中，掺杂的Flrpic染料作为给体将产生的三重态能量传递给白光聚合物的长波发射基团，进一步提高了长波基团的发光强度，改善了白光光谱，使基色更平衡并且光谱更稳定。驱动电压从8V增加到16V时，器件电致发光光谱基本不变，色坐标仅从（0．33，0．38）移动至（0．32，0．38）。敏化后的器件发光效率相对于未掺杂器件提高了38％。
英文摘要：
Based on a new polymer of PF-DTFO, the novel polymer white light-emitting diode （PWOLED） was introduced with the structure of ITO/PEDOT： PSS/PF-DTFO/LiF/A1. Because of its excess blue emission, the modified PWOLEDs were developed by doping phosphorescence dye of FIrpic in emission layer. In the PWOLEDs, triplet excitons＇ energy can transfer from FIrpic to long- wave emissive groups of PF-DTFO, which lead to an increased long-wave emission intensity. By using this phosphorescence sensitizer layer, both singlet and triplet excitons can be effectively employed, and the performance of the PWOLED was improved. The PWOLED shows a little change of CIE coordinate, which ranges from （0. 33, 0.38） to （0.32, O. 38） as the driving voltage inereased from 8 V to 16 V. Meanwhile, the device shows about 38% enhanced effieiency compared to that of unoptimized PWOLED.
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