Photoelectric element

Abstract

Abstract PURPOSE:To obtain a photoelectric element with an excellent light utilization efficiency, by covering the light-receiving surface, which has a non-translucent electrode on a part thereof, with a translucent cover which has a non-flat surface part on its surface portion corresponding to the non-translucent electrode so that light incident to the electrode of the light-receiving surface is also effectively usable. CONSTITUTION:In a photoelectric element having a non-translucent electrode 3 on a part of its light-receiving surface 10, the light-receiving surface 10 is covered with a translucent cover 7 which has a non-flat surface part 7a on its surface portion corresponding to the non-translucent electrode 3. For example, a P-type GaAs layer 2 is formed on a n-type GaAs layer 1, and a grid electrode 3 is formed on a part of the surface of the layer 2, and a rear electrode 4 is formed on the rear of the n-type GaAs layer 1. Further, an AlGaAs window layer 5 and a light reflection preventing film 6 are formed on a remaining part except for the grid electrode 3 on the surface of the P type GaAs layer 2. The cover glass 7 serving as the translucent cover, which covers the light-receiving surface 10 where the grid electrode 3 and the reflection preventing film 6 are exposed, in such a GaAs solar battery is made to have a projecting part 7a formed on its surface portion corresponding to the grid electrode 3.

Inventors

• 👤 Seiji Ochi
• 👤 越智　誠司

Bibliographic Details