First Solar, Inc.

Von Ardenne Anlagentechnik Gmbh

Other

Ricky Charles Powell

Todd M Coleman

Andrew Kelly Gray

Michael Hentschel

Reinhard Jaeger

Michael Huhn

Steffen Lessmann

Harold A McMaster

James B Foote

Akhlesh Gupta

Gary L Dorer

Hubertus Von Der Waydbrink

James Ernest Hinkle

Steven M Cox

Georg Laimer

Nicholas Alan Reiter

Siegfried Scheibe

Terence D Kahle

Gang Xiong

Markus Gloeckler

Arnold Allenic

David J Eaglesham

Charles Edward Wickersham

Kenneth Ring

Aaron Roggelin

Kuntal Kumar

Ken Ring

James R Foote

Harold A Mcmaster

A photovoltaic cell can include a dopant in contact with a semiconductor layer. The photovoltaic cell can include a transparent conductive layer and a first semiconductor layer in contact with the transparent conductive layer, the first semiconductor layer including magnesium. In certain circumstances, a substrate can be a glass substrate. In other circumstances, a substrate can be a metal layer. The first semiconductor layer can include CdS. The first semiconductor layer can have a thickness of between about 200 or 3000 Angstroms. The first semiconductor layer can include 1-20% magnesium. A method of manufacturing a photovoltaic cell can include providing a transparent conductive layer and depositing a first semiconductor layer in contact with the transparent conductive layer, the first semiconductor layer treated with magnesium.

Photovoltaic devices including MG-doped semiconductor films

A method and apparatus are disclosed in which cadmium chloride is deposited on a cadmium telluride layer while simultaneously heat treating the cadmium telluride layer.

Method and apparatus providing single step vapor chloride treatment and photovoltaic modules

A method and apparatus for depositing a film on a substrate includes introducing a material and a carrier gas into a heated chamber. The material may be a semiconductor material, such as a cadmium chalcogenide. A resulting mixture of vapor and carrier gas containing no unvaporized material is provided. The mixture of vapor and carrier gas are remixed to achieve a uniform vapor/carrier gas composition, which is directed toward a surface of a substrate, such as a glass substrate, where the vapor is deposited as a uniform film.

System and method for depositing a material on a substrate

A powder feed rate sensor includes a surface or diaphragm configured to detect powder feed rate.

Powder feed rate sensor

A deposition system and method includes a deposition source, a roll conveyor and at least one shield positioned at a location proximate to the deposition source.

System and method for transport

A transport device and method of transporting a substrate using a rotatable shaft and baffles may be used to extend cleaning intervals for the transport device and reduce deposition of a vapor deposition material upon the transport device.

Transporting device, in particular for transporting sheet-like substrates through a coating installation

A method to improve CdTe-based photovoltaic device efficiency is disclosed. The CdTe-based photovoltaic device can include oxygen or silicon in semiconductor layers.

Photovoltaic device

A system and method for coating substrates includes transporting rolls and a collecting container for collecting coating material.

System and method for coating substrates

The transporting device according to the invention, in particular for transporting sheet-like substrates through a coating installation, comprises transporting rollers which are rotatably mounted on both sides and horizontally arranged transversely in relation to the transporting direction, the uppermost surface lines of the transporting rollers defining the transporting plane, and is characterized in that the end parts of the transporting rollers have a smaller diameter than the middle part of the transporting rollers and in that baffles which are mounted displaceably in the axial direction of the transporting rollers between a first position and a second position are arranged between the end parts of the transporting rollers and the transporting plane. The fact that the baffles are mounted in an axially displaceable manner has the effect of considerably extending the cleaning intervals of the transporting device. At first the baffles are arranged in a first position, in which the end of the baffle lies underneath the substrate and, in the horizontal direction, as close as possible to the middle of the transporting roller Vapor-depositing material that gets beyond the edge of the substrate hits the baffle. During operation of the transporting device, the baffles are continuously displaced from the middle part to the ends of the transporting rollers. As a result, the increase in thickness of the layer produced on the baffles is limited, since the vapor keeps hitting new portions of the baffle.

Transport device, in particular for transporting sheet-like substrates through a coating installation

The transport device especially for transporting flat substrates through a coating installation comprises a plurality of transporting rolls, which are arranged transversely in relation to the transporting direction, and supporting rolls are also provided.

Transport device, especially for transporting flat substrates through a coating installation

Growing community of inventors

Ann Arbor, MI, United States of America

Ricky Charles Powell