First Solar Malaysia Sdn. Bhd.

John Milton Flood, Iii

Scott Daniel Feldman-Peabody

Mark Jeffrey Pavol

Robert Dwayne Gossman

Bogdan Lita

Nathan John Kruse

Valerie Pflumio Hill

Thin film photovoltaic devices that include a transparent substrate; a transparent conductive oxide layer on the transparent substrate; a n-type window layer on the transparent conductive oxide layer; a p-type absorber layer on the n-type window layer; and, a back contact on the p-type absorber layer are provided. The p-type absorber layer comprises cadmium telluride, and forms a photovoltaic junction with the n-type window layer. Generally, the p-type absorber layer defines a plurality of finger structures protruding from the p-type absorber layer into the back contact. The finger structures can have an aspect ratio of about 1 or greater and/or can have a height that is about 20% to about 200% of the thickness of the p-type absorber layer. Methods of forming such finger structures protruding from a back surface of the p-type absorber layer are also provided.

Growing community of inventors

Monument, CO, United States of America

John Milton Flood, Iii