论文标题
硫化锌叠加剂二维光子晶体,以增强从微腔发光二极管中提取光
Zinc Sulphide Overlayer Two-Dimensional Photonic Crystal for Enhanced Extraction of Light from a Micro Cavity Light-Emitting Diode
论文作者
论文摘要
将二维(2D)ZnS光子晶体沉积在一维(1D)III二氮微型腔发光二极管(LED)的表面上,以互化这两种结构的光提取特征(1d+2d)。 lambda/2的理想微型腔光厚度的沉积对于III-硝酸LED是不切实际的,在逼真的多模式设备中,由于带有带有的光线,很大一部分光丢失在内部折射中。因此,使用LED表面上的2D光子晶体用于衍射,从而在几百微米上从半导体中重定向。此外,使用后Xns Zns 2D光子晶体的使用避免了典型的蚀刻到GAN:mg接触层,该过程可能会对近表面造成损害。
A two-dimensional (2D) ZnS photonic crystal was deposited on the surface of a one-dimensional (1D) III-nitride micro cavity light-emitting diode (LED), to intermix the light extraction features of both structures (1D+2D). The deposition of an ideal micro-cavity optical thickness of lambda/2 is impractical for III-nitride LEDs, and in realistic multi-mode devices a large fraction of the light is lost to internal refraction as guided light. Therefore, a 2D photonic crystal on the surface of the LED was used to diffract and thus redirect this guided light out of the semiconductor over several hundred microns. Additionally, the employment of a post-epitaxy ZnS 2D photonic crystal avoided the typical etching into the GaN:Mg contact layer, a procedure which can cause damage to the near surface.