[thanks to donpat, private Raging Bull board]

September 8, 2011

INKS AND PASTES FOR SOLAR CELL FABRICATON

Abstract
A silicon solar cell is formed with an N-type silicon layer on a P-type silicon semiconductor substrate. An antireflective and passivation layer is deposited on the N-type silicon layer, and then an aluminum ink composition is printed on the back of the silicon wafer to form the back contact electrode. The back contact electrode is sintered to produce an ohmic contact between the electrode and the P-type silicon layer. The aluminum ink composition may include aluminum powders, a vehicle, an inorganic polymer, and a dispersant. Other electrodes on the solar cell can be produced in a similar manner with the aluminum ink composition.

Inventors:
Li; Yunjun; (Austin, TX) ; Laxton; Peter B.; (Austin, TX) ; Novak; James; (Austin, TX) ; Roundhill; David Max; (Seattle, WA)

Assignee:
APPLIED NANOTECH HOLDINGS, INC.
Austin
TX

Serial No.: 128577
Series Code: 13
Filed: November 12, 2009
PCT Filed: November 12, 2009
PCT NO: PCT/US2009/064162
371 Date: May 10, 2011

Claims
1. An aluminum ink composition for making an electrode in a silicon solar cell comprising aluminum powders, a vehicle, an inorganic polymer, and a dispersant.

Molybdenum Inks and Pastes
Molybdenum and Copper Mixture Ink Formulation

http://is.gd/cRYe2N