It is also found that the slope efficiency of the diode is higher than that of other samples in the linear region and its light output saturation level is higher because of its higher density of QD.

• 我们也发现此量子点发光二极体的量子效率及饱和强度较其他试片为高，可归因于在量子点上方加入应力缓冲层后使量子点密度增加所致。