Above 16% efficient sequentially grown Cu(In,Ga)(Se,S)2 -based solar cells with atomic layer deposited Zn(O,S) buffers

Autor: Iver Lauermann, Thomas Walter, Frank Hergert, Max Klingsporn, Rutger Schlatmann, S. Merdes, Sebastian S. Schmidt, Florian Ziem, Tetiana Lavrenko
Rok vydání: 2015
Předmět:
Zdroj: Progress in Photovoltaics: Research and Applications. 23:1493-1500
ISSN: 1062-7995
Popis: We report the development of Cd-free buffers by atomic layer deposition for chalcopyrite-based solar cells. Zn(O,S) buffer layers were prepared by atomic layer deposition on sequentially grown Cu(In,Ga)(Se,S)2 absorbers from Bosch Solar CISTech GmbH. An externally certified efficiency of 16.1% together with an open circuit voltage of 612 mV were achieved on laboratory scale devices. Stability tests show that the behavior of the ALD-Zn(O,S)-buffered devices can be characterized as stable only showing a minor drift of the open circuit voltage and the fill factor. Copyright © 2015 John Wiley & Sons, Ltd.
Databáze: OpenAIRE