Dependence on material choice of degradation of organic solar cells following exposure to humid air

Electron microscopy has been used to study the degradation of organic solar cells when exposed to humid air. Devices with various different combinations of commonly used organic solar cell hole transport layers and cathode materials have been investigated. In this way the ingress of water and the ef...

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Detalles Bibliográficos
Autores principales: Glen, Tom S., Scarratt, Nicholas W., Yi, Hunan, Iraqi, Ahmed, Wang, Tao, Kingsley, James, Buckley, Alastair R., Lidzey, David G., Donald, Athene M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2015
Materias:
Full Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4989462/
https://www.ncbi.nlm.nih.gov/pubmed/27594763
http://dx.doi.org/10.1002/polb.23905
Descripción
Sumario:Electron microscopy has been used to study the degradation of organic solar cells when exposed to humid air. Devices with various different combinations of commonly used organic solar cell hole transport layers and cathode materials have been investigated. In this way the ingress of water and the effect it has on devices could be studied. It was found that calcium and aluminum in the cathode both react with water, causing voids and delamination within the device. The use of poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) was found to increase the degradation by easing water ingress into the device. Replacing these materials removed these degradation features. © 2015 The Authors. Journal of Polymer Science Part B: Polymer Physics published by Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016, 54, 216–224

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