Berlin 2008 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 34: POSTERS Polymerphysics
CPP 34.23: Poster
Donnerstag, 28. Februar 2008, 17:00–19:30, Poster A
Optical Properties of Ink-Jet-Printable PPE-PPV/ Semiconductor Nanocrystal Hybrid Materials — •Thomas Blaudeck1, Stephan Jahn1, Daniel A. M. Egbe1, Reinhard Baumann1, and Christian von Borczyskowski2 — 1Institute of Print and Media Technology, TU Chemnitz, 09107 Chemnitz, Germany — 2Optical Spectroscopy and Molecular Physics, TU Chemnitz, 09107 Chemnitz, Germany
Hybrid materials made of organic poly(p-phenylene-ethynylene-alt-poly(p-phenylene-vinylene) (PPE-PPV) and inorganic semiconductor nanocrystals are promising candidates for various applications in electronic and optoelectronic devices such as LEDs, OBDs, and transistors. Considering the high chemical structural versatility and mechanical flexibility of PPE-PPV, devices in mind have to go along with suitable low-cost production routines. In this respect, digital fabrication techniques such as ink-jet printing have gained considerable interest as they combine the demand for a high throughput with small structure sizes down to the range of several micrometers. Whilst the suitability of PPE-PPV for printing was recently proven [1], additives and impurities were found to considerably affect the optical, functional, and rheological properties of the printing formulation. Apart from some empirical data, their particular role is still poorly understood. In this study, we focus on the influence of semiconductor nanocrystals on the optical properties of a series of ink-jet printable PPE-PPV formulations and their precursors.
[1] E. Tekin et al., Journal of Materials Chemistry 16, 4294 (2006).