The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 1987
Filed:
Dec. 28, 1984
Masaaki Okunaka, Fujisawa, JP;
Mitsuo Nakatani, Yokohama, JP;
Haruhiko Matsuyama, Hiratsuka, JP;
Hitoshi Yokono, Fujisawa, JP;
Tokio Isogai, Katsuta, JP;
Tadashi Saitoh, Tokyo, JP;
Kunihiro Matsukuma, Hitachi, JP;
Sumiyuki Midorikawa, Hitachi, JP;
Satoru Suzuki, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A process for producing solar cells which comprises applying a composition for anti-reflection coating formation on one side of a silicon base plate having a p-n junction therein, printing an Ag paste for contact formation on predetermined areas of the coat, and heat-treating the resulting plate at a temperature of 400.degree. to 900.degree. C. to complete anti-reflection coating and a light-receiving side contact, the process being characterized in that the composition for anti-reflection coating formation contains as essential component, (a) at least one member selected from the metal-organic ligand complex compounds represented by the general formula M(OR.sub.1).sub.n (L).sub.a-n wherein M is a metal selected from Zn, Al, Ga, In, Ti, Zr, Sn, V, Nb, Ta, Mo, and W; R.sub.1 is a C.sub.1 -C.sub.18 alkyl group; L is an organic ligand which forms an non-hydrolyzable bond with the metal ion; a is the valency of the metal M; and n is an integer satisfying 1.ltoreq.n<a, and hydrolytic condensation products thereof represented by the general formula (OR.sub.1).sub.n-1 M(L).sub.a-n --O--M(OR.sub.1).sub.n-1 (L).sub.a-n, (b) an organotin compound, and (c) a solvent.