为了用更恰当的制备方法来延长交流电致发光粉的寿命,研究引起退化的原因是很必要的。快速退化的明显的原因是湿气,它引起电解和形成黑斑。为了防止这种退化,可采用烘干发光粉和粘结剂,并且密封电致发光层使湿气不能侵入等方法。但是,即使这样处理之后,仍旧有缓慢的退化现象。 In order to use a more appropriate preparation method to extend the life of AC electroluminescent powder, it is necessary to study the cause of degradation. The obvious reason for rapid degeneration is moisture, which causes electrolysis and formation of dark spots. In order to prevent such deterioration, a method of drying the luminescent powder and the binder, and sealing the electroluminescent layer from intrusion of moisture can be employed. However, even after this is done, there is still a gradual degeneration.