摘要半导体固态照明（Solid State Lighting）是21世纪最具发展前景的新技术之一。作为一种新型高效的固体光源，其具有寿命长、节能、绿色环保、色彩丰富等显著优点，将成为人类照明史上继白炽灯、荧光灯之后的又一次飞跃。粗略估计，我国照明用电每年在3000亿度以上，若用LED取代全部白炽灯或部分取代荧光灯，可节省1／3的照明用电，这对缓解能源危机、
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