John M Perkins

US Patent:

8329502, Dec 11, 2012

Filed:

Oct 14, 2010

Appl. No.:

12/904959

Inventors:

David S. Ginley - Evergreen CO, US
John Perkins - Boulder CO, US
Joseph Berry - Boulder CO, US
Thomas Gennett - Denver CO, US

Assignee:

Alliance for Sustainable Energy, LLC - Golden CO

International Classification:

H01L 23/532
H01L 21/283

US Classification:

438 95, 438679, 257E21159, 257E23155

Abstract:

Method of applying a conformal coating to a highly structured substrate and devices made by the disclosed methods are disclosed. An example method includes the deposition of a substantially contiguous layer of a material upon a highly structured surface within a deposition process chamber. The highly structured surface may be associated with a substrate or another layer deposited on a substrate. The method includes depositing a material having an amorphous structure on the highly structured surface at a deposition pressure of equal to or less than about 3 mTorr. The method may also include removing a portion of the amorphous material deposited on selected surfaces and depositing additional amorphous material on the highly structured surface.

US Patent:

20120160663, Jun 28, 2012

Filed:

Dec 13, 2011

Appl. No.:

13/324835

Inventors:

Dane GILLASPIE - Golden CO, US
Thomas Gennett - Denver CO, US
David S. Ginley - Evergreen CO, US
John Perkins - Boulder CO, US

Assignee:

Alliance for Sustainable Energy, LLC. - Golden CO

International Classification:

C23C 14/34

US Classification:

20419215

Abstract:

Sputtering deposition processes for generation of transparent conductive metal oxide films, and films produced by such methods, are disclosed.

US Patent:

20140020744, Jan 23, 2014

Filed:

Jan 3, 2013

Appl. No.:

13/733784

Inventors:

David Ginley - Evergreen CO, US
John Perkins - Boulder CO, US
Vincent Bollinger - Arvada CO, US

International Classification:

H01L 31/0224
H01L 31/18

US Classification:

136256, 20419229, 4235931, 4235949, 2525191

Abstract:

A device includes a back contact, an absorber layer coupled to the back contact, a buffer layer coupled to the absorber layer; and an amorphous transparent conductive layer coupled to the buffer layer, wherein the amorphous transparent conductive phase is characterized by, as a function of composition, i) a range of band gaps and ii) a range of work functions.