2results about How to "Good mirror effect" patented technology

A first electrode and an isolation layer are formed on one side of an N-type semiconductor layer of the light emitting diode, the isolation layer comprises a first part and a second part, the first part covers a light emitting area, and the second part is located below a main extension part of the first electrode. Or the second part is positioned below the main extension part and the body part. Through the arrangement of the isolation layer, the contact area of the first electrode made of the metal material and the semiconductor epitaxial laminated layer is reduced, so that the interface roughness caused by contact diffusion of the metal and the epitaxial laminated layer is reduced, and the light emitting efficiency can be improved. Meanwhile, the contact surface of the current expansion layer and the epitaxial lamination layer is flat and smooth, the mirror surface effect is good, light reflection can be improved, and the light emitting efficiency is improved. And on the other hand, the secondary extension part of the first electrode and the epitaxial lamination layer form ohmic contact, so that good ohmic contact is formed, and normal voltage of the light-emitting diode is ensured.

The application provides a kind of for magneto-optical detection double-sided garnet single crystal film and its preparation method and application.The preparation method comprises the following steps: using Ga2O3, Tm2O3, Fe2O3, Bi2O3 as raw materials, then adding K2CO3, mixing, melting, to obtain a homogeneous melt;cleaning the substrate;the cleaned substrate is put into the melt, at a temperature of 850-920°C, the substrate rotation speed is 50-110rpm / min, the growth time is 5-15min, after the growth is completed, cleaning, to obtain a kind of for magneto-optical detection double-sided garnet single crystal film according to the application.The application adopts liquid phase epitaxy process, realizes the growth of high-quality thin film, prepares a kind of double-sided single crystal garnet magneto-optical thin film which can be used for magneto-optical detection, the preparation process is simple, the stability is high, and industrial production can be realized.