Title
Highly efficient monolithic perovskite/CIGSe tandem solar cells on rough bottom cell surfaces
Date Issued
01 June 2019
Access level
metadata only access
Resource Type
conference paper
Author(s)
Jost M.
Bertram T.
Koushik D.
Marquez J.A.
Verheijen M.A.
Heinemann M.D.
Kohnen E.
Al-Ashouri A.
Unold T.
Creatore M.
Lauermann I.
Kaufmann C.A.
Schlatmann R.
Albrecht S.
Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
Publisher(s)
Institute of Electrical and Electronics Engineers Inc.
Abstract
We present a new strategy for highly efficient perovskite/CIGSe monolithic tandem solar cells, fabricated directly on top of a rough CIGSe surface. This was enabled by conformally depositing the metal oxide NiOx by atomic layer deposition, as confirmed by TEM/EDX measurements. The resulting limiting NiOx/perovskite interface was improved by spin-coating additional thin layer of p-type polymer PTAA, thus forming a NiOx/PTAA hole selective bilayer. The fabricated tandem device has a 21.6% power conversion efficiency on 0.778 cm2, stable over 10 minutes of maximum power point tracking. The device performance is further analyzed by absolute photoluminescence measurements from which a VOC contribution of each subcell to the tandem VOC can be estimated.
Start page
738
End page
742
Number
8980493
Language
English
OCDE Knowledge area
Ingeniería de materiales
Subjects
Scopus EID
2-s2.0-85081581849
ISSN of the container
01608371
ISBN of the container
978-172810494-2
Conference
Conference Record of the IEEE Photovoltaic Specialists Conference
Sources of information:
Directorio de Producción Científica
Scopus