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  4. Nondestructive Probing of Perovskite Silicon Tandem Solar Cells Using Multiwavelength Photoluminescence Mapping
 
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research article

Nondestructive Probing of Perovskite Silicon Tandem Solar Cells Using Multiwavelength Photoluminescence Mapping

Mundt, Laura E.
•
Heinz, Friedemann D.
•
Albrecht, Steve
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2017
Ieee Journal Of Photovoltaics

In this paper, spatially resolved photoluminescence (PL) spectroscopy with various excitation wavelengths is presented as a nondestructive and versatile technique providing access to the individual subcells of multijunction solar cells. This method is demonstrated on a state-of-the-art monolithic tandem solar cell composed of a planar perovskite solar cell and a silicon heterojunction solar cell. It is shown that the lateral distribution of inhomogeneities can be attributed unambiguously to the individual cells and be related to the manufacturing process. The approach of depth-selective probing of the silicon bottom cell is verified by comparison to reflection maps and by comparison to measurements of the silicon cell after removing the perovskite top cell. Analyzing subcells integrated into a monolithic tandem solar cell is challenging though crucial in order to identify performance limiting loss mechanisms. This method can be used to improve the study of the mutual influence of adjacent subcells in the fully fabricated device, which has been an unfeasible task up to now.

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Type
research article
DOI
10.1109/Jphotov.2017.2688022
Web of Science ID

WOS:000404258900019

Author(s)
Mundt, Laura E.
•
Heinz, Friedemann D.
•
Albrecht, Steve
•
Mundus, Markus
•
Saliba, Michael  
•
Correa-Baena, Juan Pablo  
•
Anaraki, Elham H.
•
Korte, Lars
•
Gratzel, Michael  
•
Hagfeldt, Anders  
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Date Issued

2017

Publisher

Ieee-Inst Electrical Electronics Engineers Inc

Published in
Ieee Journal Of Photovoltaics
Volume

7

Issue

4

Start page

1081

End page

1086

Subjects

Perovskite

•

photoluminescence (PL)

•

silicon

•

tandem

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPI  
LSPM  
Available on Infoscience
September 5, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/140291
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