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:
Oct. 14, 2014
Filed:
Apr. 08, 2010
Mark A. Stan, Albuquerque, NM (US);
Nein Y. LI, Albuquerque, NM (US);
Frank A. Spadafora, Baden, PA (US);
Hong Q. Hou, Arcadia, CA (US);
Paul R. Sharps, Albuquerque, NM (US);
Navid S. Fatemi, Albuquerque, NM (US);
Mark A. Stan, Albuquerque, NM (US);
Nein Y. Li, Albuquerque, NM (US);
Frank A. Spadafora, Baden, PA (US);
Hong Q. Hou, Arcadia, CA (US);
Paul R. Sharps, Albuquerque, NM (US);
Navid S. Fatemi, Albuquerque, NM (US);
Emcore Solar Power, Inc., Albuquerque, NM (US);
Abstract
Methods of fabricating multijunction solar cells that may include providing a substrate, and depositing a nucleation first layer over and directly in contact with the substrate. The methods may also include depositing a second layer containing an arsenic dopant over the nucleation layer. The nucleation layer may serve as a diffusion barrier to the arsenic dopant such that diffusion of the arsenic dopant into the substrate is limited in depth by the nucleation layer. The methods may also include depositing a sequence of layers over the second layer forming at least one solar subcell.