| 摘要 |
An LED is provided to enhance the brightness, to reduce an operation voltage and to decrease a tensile strain by improving the density and mobility of electrons using an island type insertion layer. An LED includes a light emissive structure composed of an N-GaN layer(12), an active layer and a P-GaN layer. An island type insertion layer(13) is interposed between the N-GaN layer and the active layer. The island type insertion layer is used for lessening a tensile strain between the N-GaN layer and the active layer. The insertion layer is made of one selected from a group consisting of InN, AlN, GaN or the composition thereof.
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