Photovoltaic cell

US9537021B2 · kind B2 · utility

Assignee

• Epistar Corporation · TW

Inventors

• Ming-Nan Chang · Hsinchu, TW
• Cheng Chen · Hsinchu, TW

Key dates

• Filing date: May 15, 2013
• Grant date: Jan 3, 2017
• Expiry date: Jan 12, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/52

Abstract

A concentrated photovoltaic cell comprises a semiconductor stack comprising an upper surface and a lower surface opposite to the upper surface, wherein the upper surface is operable to absorb a light which comprises a light intensity distribution on the upper surface; and an upper electrode formed on the upper surface of the semiconductor stack and comprising an electrode pattern approximately corresponding to the light intensity distribution, wherein the light intensity distribution comprises a high light-concentrated area having a first light intensity and a low light-concentrated area having a second light intensity, wherein the second light intensity is lower than the first light intensity.