James Jay Dolan

US Patent:

7179677, Feb 20, 2007

Filed:

Sep 3, 2003

Appl. No.:

10/534217

Inventors:

Kannan Ramanathan - Golden CO, US
Falah S. Hasoon - Golden CO, US
Sarah E. Asher - Wheat Ridge CO, US
James Dolan - Arvada CO, US
James C. Keane - Lakewood CO, US

Assignee:

Midwest Research Institute - Kansas City MO

International Classification:

H01L 31/18

US Classification:

438 95, 438 93, 438 94, 136262, 136264, 136265

Abstract:

A process for making a thin film ZnO/Cu(InGa)Sesolar cell without depositing a buffer layer and by Zn doping from a vapor phase, comprising: depositing Cu(InGa)Selayer on a metal back contact deposited on a glass substrate; heating the Cu(InGa)Selayer on the metal back contact on the glass substrate to a temperature range between about 100 C. to about 250 C. ; subjecting the heated layer of Cu(InGa)Seto an evaporant species from a Zn compound; and sputter depositing ZnO on the Zn compound evaporant species treated layer of Cu(InGa)Se.

US Patent:

44664230, Aug 21, 1984

Filed:

Sep 30, 1982

Appl. No.:

6/429923

Inventors:

James E. Dolan - Denver CO
Timothy D. Sands - Berkeley CA

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

F23J 302

US Classification:

126424

Abstract:

Disclosed is a heliostat collector apparatus comprising at least one heliostat suspended from a plurality of longitudinally extending linkage means. An enclosure structure is disposed adjacent the heliostat and provides a means for allowing the heliostat to be substantially protected from weathering. A first drive means is operatively connected to the heliostat to effect steering thereof in at least one of first and second predetermined directions. Finally, a frame member is adapted for supporting the heliostat at an inner portion thereof. The frame includes a plurality of outer expandable portions. Each one of the expandable portions is adapted to slidably engage a corresponding one of the plurality of linkage means. The expandable portions are further adapted to allow the heliostat to be slidably moved along the linkage means in directions away from and towards the enclosure structure and to substantially reduce stress acting on the heliostat during steering.