Berlin 2018 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 46: Poster Session IV

CPP 46.30: Poster

Mittwoch, 14. März 2018, 11:00–13:00, Poster A

A comparative study of thin organic layers for photovoltaic applications using spin and spray coating — •Debamitra Chakraborty, Sebastian Grott, and Peter Müller-Buschbaum — TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching

Bulk-heterojunction organic solar cells have emerged as a promising alternative for conventional silicon based solar cells because of their potential to be light weight, flexible and semi-transparent, which makes them versatile for many applications. Though the most popular scientific method of processing solar cell is spin coating, they can also be processed with solution based methods which enables the possibility to use low cost manufacturing processes like roll-to-roll printing or spray casting. In this study we investigate thin films of different mixtures of conjugated polymers and small acceptor molecules forming organic bulk hetero junctions, which were processed by spin coating or spray casting. Thereby we want to investigate the influence of the different processing techniques on the film morphology and photophysical properties. The structure is analyzed with scattering techniques and correlated with the obtained photophysical properties.