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Verfahren zum Herstellen einer photovoltaischen Solarzelle mit zumindest einem Heteroübergang

METHOD FOR PRODUCING A PHOTOVOLTAIC SOLAR CELL HAVING AT LEAST ONE HETEROJUNCTION PASSIVATED BY MEANS OF HYDROGEN DIFFUSION
 
: Feldmann, Frank

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Frontpage ()

DE 102013219561 A1: 20130927
German
Patent, Electronic Publication
Fraunhofer ISE ()

Abstract
WO15044070A1 [EN] The invention relates to a method for producing a photovoltaic solar cell having at least one heterojunction, comprising the following steps: A) providing a semiconductor substrate having base doping; B) producing a heterojunction on at least one side of the semiconductor substrate, which heterojunction has a doped heterojunction layer and a dielectric tunnel layer arranged indirectly or directly between the heterojunction layer and the semiconductor substrate; C) heating at least the heterojunction layer in order to improve the electrical quality of the heterojunction. The invention is characterized in that, in a step D after step C, hydrogen is diffused into the heterojunction layer and/or to the interface between the tunnel layer and the semiconductor substrate.

: http://publica.fraunhofer.de/documents/N-337527.html