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Dresden 2017 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 50: Poster: Organic Electronics and Photovoltaics, Molecular Excitations

CPP 50.33: Poster

Wednesday, March 22, 2017, 18:30–21:00, P3

Substrate Influence on the Formation of 2D-Polymeric Phthalocyanine Sheets — •Clemens Geis1,2, Thi Hai-Quyen Nguyen1,2, Pascal Schweitzer1,2, and Derck Schlettwein1,21Justus-Liebig-University Giessen, Institute of Applied Physics — 2Justus-Liebig-University Giessen, Laboratory for Materials Science (LaMa)

Phthalocyanines can be synthesized as two-dimensional polymeric sheets. Interest in their electrical properties and, e.g., in their use as electrode materials in catalysis is rising. Compared to monomeric phthalocyanines, the sheet polymers are characterized by an enhanced mechanical and chemical stability. The synthesis of those networks critically depends on the control of various reaction parameters. This work focuses on the influence of the substrate during a two-step reaction of 1,2,4,5-tetracyanobenzene with copper under vacuum conditions. Diffusion effects, side reactions and alloying within the substrate can hinder or even disrupt the formation of the phthalocyanine network and, hence, lead to undesired results. Spectroscopic methods were used to define and control the influence of the substrate on the growth of the 2D phthalocyanine network.

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