Jason L Myers

US Patent:

20130087200, Apr 11, 2013

Filed:

Jun 17, 2011

Appl. No.:

13/704660

Inventors:

Jiangeng Xue - Gainesville FL, US
Jason David Myers - Gainesville FL, US
Weiran Cao - Gainesville FL, US

Assignee:

UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC. - GAINESVILLE FL

International Classification:

H01L 31/0232
H01L 31/18

US Classification:

136259, 438 69, 977948

Abstract:

Back reflector arrays are applied to the surface distal to the incident light receiving surface of a thin film solar cell to increase its efficiency by altering the reflected light path and thereby increasing the path length of light through the active layer of the solar cell. The back reflector is an array of features of micrometer proportions. The feature may be concave or convex features such as hemispheres, hemi-ellipsoids, partial-spheres, partial-ellipsoids, or combinations thereof The feature may be pyramidal. A method of forming the back reflector array is by forming an array of features from a photocurable resin, subsequent curing the resin and metalizing the cured resin to render the surface reflective. The photocurable resin can be applied by inkjet printing or rolling or stamping with a mold.

US Patent:

20130092229, Apr 18, 2013

Filed:

Jun 17, 2011

Appl. No.:

13/704651

Inventors:

Jiangeng Xue - Gainesville FL, US
Jason David Myers - Gainesville FL, US
Sang-Hyun Eom - Kyunggi-Do, KR

Assignee:

UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC. - GAINESVILLE FL

International Classification:

H01L 31/0232
H01L 31/18

US Classification:

136256, 438 29

Abstract:

Textured transparent layers are formed on the incident light receiving surface of thin film solar cells to increase their efficiency by altering the incident light path and capturing a portion of the light reflected at the MLA. The textured transparent layer is an array of lenses of micrometer proportions such as hemispheres, hemi-ellipsoids, partial-spheres, partial-ellipsoids, cones, pyramids, prisms, half cylinders, or combinations thereof. A method of forming the textured transparent layer to the light incident surface of the solar cell is by forming an array of lenses from a photocurable resin and its subsequent curing. The photocurable resin can be applied by inkjet printing or can be applied by roll to roll imprinting or stamping with a mold.