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  4. Quick Spectrometric Characterization of Monolithic Perovskite Silicon Tandem Solar Cells Using Monochromatic Light Sources
 
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2024
Journal Article
Title

Quick Spectrometric Characterization of Monolithic Perovskite Silicon Tandem Solar Cells Using Monochromatic Light Sources

Abstract
In monolithic perovskite silicon dual-junction solar cells, it is crucial that the subcells are current-matched to maximize performance. The most precise method to determine the current (mis)match of a monolithic dual-junction solar cell is a spectrometric measurement with, e.g., a light-emitting diode (LED)-based solar simulator. However, recoding multiple current voltage curves (IV curves) under different red- and blueshifted spectra relative to the AM1.5g reference spectrum is time-consuming. Herein, a new method is suggested to quickly test solar cells for current mismatch. A solar simulator with two lasers instead of multiple LEDs is used, so that two monitor diodes can track intensity changes of each light source during the measurement. Postmeasurement corrections can be applied using this data, circumventing long stabilization times of the solar simulator. To minimize the scan time, it is focused only on determining the correct short-circuit current and not the full IV curve. The measurement method is validated comparing it to conventional spectrometric measurements using a stable III-V monolithic dual-junction solar cell. The measurement on the proof-of-concept setup shows a deviation of only 2.3% in the current at the current matching point compared to the reference measurement.
Author(s)
Fischer, Oliver  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Bett, Alexander J.
Fraunhofer-Institut für Solare Energiesysteme ISE  
Abrorov, Khusan
Fraunhofer-Institut für Solare Energiesysteme ISE  
Mahmoud, Mohamed Abdelaziz Abdelnaby
Fraunhofer-Institut für Solare Energiesysteme ISE  
Schindler, Florian  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Glunz, Stefan W.  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Schubert, Martin C.  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Journal
Solar RRL  
Open Access
File(s)
Download (1.04 MB)
Rights
CC BY 4.0: Creative Commons Attribution
DOI
10.1002/solr.202400686
10.24406/publica-4035
Additional full text version
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English
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