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:
Aug. 15, 1989
Filed:
May. 04, 1988
Applicant:
Inventors:
Assignee:
Sanyo Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
136249 ; 136258 ; 357 30 ; 357 59 ;
Abstract
The present invention relates to a photovoltaic device using hydrogenated amorphous silicon as a photoactive layer, wherein the ratio of the number of silicon atoms bonded to hydrogen atoms to the total number of silicon atoms (expressed as a percentage) is 1% or less and the density of dangling bonds is 1.times.10.sup.17 cm.sup.-3 or less. Accordingly, the device of the present invention has the following advantages: the cost can be reduced by forming a thinner layer, the area of the photo-active layer can be increased, the efficiency of photo-electric conversion is improved, and photo-deterioration is reduced.