Dresden 2014 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 29: Poster: Organic semiconductors and hybrid organic-inorganic heterostructures / Organic photovoltaics

HL 29.6: Poster

Monday, March 31, 2014, 17:00–20:00, P2

Vapour-phase absorption of aromatic molecules — •Niklas Kraus, Sangam Chatterjee, and Andre Rinn — Philipps Universität, Marburg, Deutschland

Organic semiconductors are promising materials for future electronic applications. To understand the complex optical properties of organic molecular crystals, one needs to obtain the single molecular response first. Hence, we investigated the optical properties of different molecules in solution and in the vapour phase. Therefore, we construct an evaporation cell where the optical transmission through a 5cm long gas volume is measured in the 1-6eV energy range. Using this apparatus, we analyzed the vapour-phase absorption and photoluminescence of the aromatic molecules perylene. pentacene, and perfluropentacene at temperatures up to 590K.