Proceedings of Materials for Sustainable Development Conference (MAT-SUS) (NFM22)
DOI: https://doi.org/10.29363/nanoge.nfm.2022.192
Publication date: 11th July 2022
The operational stability of organic solar cells is influenced by several factors including microstructure stability, the electrochemical stability of electrodes, and the photochemical degradation of the materials. Whilst some materials appear to perform better than others, there is as yet insufficient information on the material chemistry or device structure and degradation pathways to design better materials. We investigate the specific chemical structure – degradation relationship for a series of chemically similar materials. For the study we select isolated isomers of the bis-adduct of PCBM, given that the small differences in chemical structure between the different isomers are known exactly and the common degradation pathways for solar cells containing fullerenes are also known. We investigate degradation in the presence and absence of air and seek correlation between the chemical structure (i.e. side chain positions) and different mechanisms involving oxygen radicals and fullerene interactions. We consider more general criteria for improving the photochemical and microstructural stability.
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Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
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