Thin film solar cell having a concave n-i-p structure

US4956685A · kind A · utility

Assignee

• Licentia Patent-Verwaltungs-GmbH · DE

Inventors

• Roland Fischer · Bochum, DE
• Gerhard Grabe · Roßdorf, DE
• Kkard Niemann · Maintal, DE

Key dates

• Filing date: Feb 13, 1990
• Grant date: Sep 11, 1990
• Expiry date: Feb 13, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/548

Abstract

A thin film solar cell with an n-i-p structure has a roughened substrate surface, and, to achieve an improved fill factor, the substrate surface of the solar cell is a multiply concave surface and has no sharp points.