Improving Light Stability of Nonfullerene Acceptor Inverted Organic Solar Cell by Incorporating a Mixed Nanocomposite Metal Oxide Electron Transporting Layer
Journal
ACS applied electronic materials
Date Issued
April 23, 2025
DOI
10.1021/acsaelm.5c00201
Abstract
We present significant light stability enhancement of nonfullerene acceptor inverted organic photovoltaics by incorporating a mixed nanocomposite metal oxide electron transporting layer. Using an appropriate mixture of ZnO:SnO2 nanoparticles as an electron transporting layer in a PBDB-TF-T1 (T1):IT4F based organic solar cell device mitigates light induced photodegradation by lowering the defect formation at the active layer interface. We propose that the mixed metal oxide ETL act as hole scavengers that reduces the photocatalytic reaction of its surface. The optimized nanocomposite mixture of ZnO:SnO2 10:90 (%V) provides higher light stability (ISOS-L2 protocol), prolonging the inverted OSCs lifetime (80% of the initial PCE, T80) by ∼16.5 times compared to the commonly used pristine ZnO electron transporting layer.
File(s)![Thumbnail Image]()
Name
acsaelm.5c00201.pdf
Size
3.25 MB
Format
Adobe PDF
Checksum (MD5)
f158f9019521b66e1bda3ef42b84dd9e