由化合物半导体制备的发光二极管(Light-emitting diodes,LEDs)和激光管(Laserdiodes,LDs)目前已达到了相当成熟的水平,但在生产工艺和器件特性方面仍存在某些问题,蓝光波段发光就是无机半导体LEDs的空白.虽然作为1992年光电子领域的重大发现,利用Ⅱ—IV族化合物半导体材料已实现了蓝光发射,但目前的器件一般在低温下操作,且寿命较短,距实用化还有相当距离.与此同时,有机材料LEDs在实现多色及大面积显示方面 Light-emitting diodes (LEDs) and laser diodes (LDs) made from compound semiconductors have reached a fairly mature level at present, but some problems still remain in the production process and the device characteristics. The blue band emits light Although the use of Group II-IV compound semiconductor materials as a major discovery in the field of optoelectronics in 1992 has achieved blue emission, current devices are generally operated at low temperatures and have a short life expectancy and utility A considerable distance at the same time, organic materials LEDs in the realization of multicolor and large area display