@article{Yang:2024:10.1002/adfm.202406941,
author = {Yang, EJ and Luke, J and Fu, Y and Qiao, Z and Bidwell, M and Marsh, AV and Heeney, M and Gasparini, N and Kim, JS},
doi = {10.1002/adfm.202406941},
journal = {Advanced Functional Materials},
title = {Unraveling the Impact of Solution Filtration on Organic Solar Cell Stability},
url = {http://dx.doi.org/10.1002/adfm.202406941},
year = {2024}
}

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TY  - JOUR
AB  - Despite major advances in efficiency, the operational stability of organic photovoltaic (OPV) devices remains poor. Therefore, understanding the degradation mechanisms and identifying potential solutions to improve device stability is critical to enabling the widespread commercialization of OPVs. Herein, simple filtration of the PBDB-T:ITIC photoactive layer (PAL) solution prior to film deposition is demonstrated to enhance OPV device operational stability without compromising initial device performance. The effect of filtration, a commonly used but poorly understood OPV fabrication step, is investigated using a range of chemical, structural, and optoelectronic methods, on solutions and films. Filtration is found to remove large aggregates from solution without disrupting nanoscale preaggregation, resulting in enhanced acceptor ordering in PBDB-T:ITIC thin films, significantly improving morphological stability and photostability. This simple and facile method is confirmed to be a general strategy that also works for other PBDB-T-containing OPV blends, including Y6-based systems, and highlights how subtle changes in morphology can result in dramatic differences in operational stability.
AU  - Yang,EJ
AU  - Luke,J
AU  - Fu,Y
AU  - Qiao,Z
AU  - Bidwell,M
AU  - Marsh,AV
AU  - Heeney,M
AU  - Gasparini,N
AU  - Kim,JS
DO  - 10.1002/adfm.202406941
PY  - 2024///
SN  - 1616-301X
TI  - Unraveling the Impact of Solution Filtration on Organic Solar Cell Stability
T2  - Advanced Functional Materials
UR  - http://dx.doi.org/10.1002/adfm.202406941
ER  - 

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