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:
Apr. 27, 1993
Filed:
Aug. 08, 1991
Takashi Yoshida, Kanagawa, JP;
Fuji Electric Corporate Research and Development Ltd., Kanagawa, JP;
Abstract
An amorphous photoelectric transducer of the type that converts light energy to electric energy using a p-n or p-i-n junction in an amorphous semiconductor having a p-type film on the light entrance side is disclosed. The p-type amorphous semiconductor film is formed with gaseous boron trifluoride (BF.sub.3) as a dopant, the film containing boron atoms at a concentration in the range of 1.times.10.sup.20 -2.times.10.sup.21 atoms/cm.sup.3, and the concentration of fluorine atoms in the film being no more than one half of the concentration of boron atoms. A process for producing an amorphous photo-electric transducer is also disclosed, wherein the p-type amorphous semiconductor film is formed by a pulse discharge-assisted chemical vapor deposition (CVD) technique which decomposes a feed gas including gaseous boron trifluoride (BF.sub.3) as a dopant.