| 摘要 |
An optoelectronic device comprising: a substrate; and a transition stack formed on the substrate comprising one first transition layer formed on the substrate having a first hollow component formed inside the first transition layer and a second transition layer formed on the first transition layer having a second hollow component formed inside the second transition layer wherein the first hollow component and the second hollow component having a volume respectively, and the volume of the first hollow component is different with the second hollow component and the material of the transition stack comprises at least two element. |
