EFFECT OF SELF-ORGANIZATION IN 2D MOLECULAR SYSTEMS PERSPECTIVE FOR ORGANIC PHOTOVOLTAICS

Tomáš Váry – Juraj Chlpík – Katarína Bombarová – Gabriel Čík – Július Cirák

   Properties of monolayer films of the amphiphilic molecules using the Langmuir method were studied. We focused on binary systems of organic molecules to form self-organized structures suitable for application in photovoltaics. The studied materials were fullerene nanoparticles as acceptor and oligothiphene polymer as donor in organic molecular heterojunction structure. Mechanical as well as thermodynamic quantities were evaluated for characterizing the 2D molecular binary system at various molar ratios. The formation of self-assembled domains was visualized by AFM and fluorescence microscopy.

Keywords: Langmuir monolayers, fullerene, oligothiophene, organic solar cells, molecular self-organization

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