为了研究光电材料CdS在有机白光器件中增加电子注入的特性,将结构为ITO/NPB/Rubrene/NPB/DPVBi/Alq3/LiF/Al的白光器件,不插入CdS薄层或将CdS薄层分别插入到NPB和ITO之间以及Alq3和LiF之间或同时将CdS薄层插入到它们之间,制作了四个元器件。通过研究得出,在Alq3和LiF之间插入CdS薄层的器件,在同等条件下性能较好。性能的改善来自于CdS薄层的引入使器件电子注入增加,激子形成的数量和比率也获得了相应的提高,从而提高了器件的亮度和效率。 In order to study the property of increasing the electron injection of the CdS in the organic white light device, a white light device with the structure of ITO / NPB / Rubrene / NPB / DPVBi / Alq3 / LiF / Al was inserted into the CdS thin layer or the CdS thin layer To NPB and ITO and between Alq3 and LiF or between the CdS thin layer inserted between them, made four components. Through the research, it is found that the device with the thin CdS layer inserted between Alq3 and LiF has better performance under the same conditions. The improvement of performance comes from the introduction of CdS thin film to increase the electron injection of the device, and the corresponding increase of the number and ratio of exciton formation to improve the brightness and efficiency of the device.