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research article

Integration of Metal Meshes as Transparent Conducting Electrodes into Perovskite Solar Cells

Ongaro, Chiara  
•
Roose, Bart
•
Fleury, Jérémy  
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March 14, 2024
Advanced Materials Interfaces

As the demand for photovoltaic technologies continues to grow, the quest for efficient and sustainable transparent conducting electrodes (TCEs) rapidly rises. Traditional solutions, such as indium tin oxide (ITO), face challenges related to indium scarcity and environmental impact. To tackle these issues, a novel metal mesh rear TCE consisting of gold micro‐meshes is developed as ITO replacement in perovskite solar cells (PSCs). This study reveals that optimized Au meshes can guarantee 75% of the extracted photocurrent compared to reference devices with ITO and a promising power conversion efficiency (PCE) of 8.65%. By utilizing hybrid mesh structures with a 10‐nm ITO layer, the PCE further improves to 12.1%, with the extracted current exceeding 80% of the reference. Metal meshes can even serve to replace the opaque metal contact of PSCs, amplifying their functionality and efficiency through bifacial and multi‐junction applications. Here, aerosol jet‐printed silver meshes serve as front electrodes, combined with either 5–10 nm of Au, achieving efficient semi‐transparent devices (PCE 16.8%), or with 5–10 nm of ITO, providing enhanced bifacial properties while maintaining competitive efficiency. Overall, this work highlights remarkable features of metal meshes, making them promising alternatives to commonly used TCEs in optoelectronic applications.

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Type
research article
DOI
10.1002/admi.202300923
Author(s)
Ongaro, Chiara  

EPFL

Roose, Bart
Fleury, Jérémy  
Frohna, Kyle
Ooi, Zher Ying
Schneider, René Uwe  
Heier, Jakob  

EPFL

Stranks, Samuel D.
Schueler, Andreas  

EPFL

Date Issued

2024-03-14

Publisher

Wiley

Published in
Advanced Materials Interfaces
Volume

11

Issue

8

Article Number

2300923

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
PV-LAB  
SCI-ENAC-AS  
FunderFunding(s)Grant NumberGrant URL

Engineering and Physical Sciences Research Council

EP/T02030X/1 ; EP/V027131/1 ; EP/S01781X/1

Royal Society

UF150033

Henry Royce Institute

EP/P024947/1 ; EP/R00661X/1

Available on Infoscience
April 1, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/248412
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