| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor light emitting device and a light emission indicator, which do not require any external power supply and which are operated with a small power consumption even when the external power supply is employed. <P>SOLUTION: A piezoelectric semiconductor thin film crystalline layer 3 is formed on a substrate 1, and a light emitting layer 4 having a multiple quantum well structure is formed on one part of the surface of the layer 3. Then the piezoelectric semiconductor thin film crystalline layer 3 is further formed across the whole surface of the light emitting layer 4 and the piezoelectric semiconductor thin film crystalline layer 3, on which the light emitting layer 4 is not formed. A semiconductor light emitting device 10 having a structure wherein the light emitting layer 4 is embedded into the piezoelectric semiconductor thin film crystalline 3 is obtained. In the light emitting device 10, when a pressure is impressed on the surface of the piezoelectric semiconductor thin film crystalline layer 3 in the direction of thickness of the same, positive and negative carriers are generated by piezoelectric effect while they are combined in the light emitting layer whereby light is emitted. <P>COPYRIGHT: (C)2004,JPO |
