在硅单晶上,采用了环境友好的ZnO/Zn0.9Mg0.1O多层量子阱结构作为有源层,Na作为p型掺杂元素,制备了ZnO发光二极管(LED).该LED在室温电注入条件下,实现了较强的紫蓝发光,且有效控制了缺陷发光.这项工作将为ZnO LED走向应用起到重要的推进作用.
Using ZnO/Zn0.9Mg0.1O multi-quantum wells as active layer and Na as acceptor dopant of ZnO, we fabricate ZnO light- emitting diode (LED) on silicon substrate. We observe strong blue-violet emission and negligible defect emission from this device under low current injection at room temperature. This work could have significant impact on the practical application of ZnO LED.