Introduction

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Introduction

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Video of a Samsung flexible OLED prototype

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Our research is concerned with the electronic structure of organic semiconductors. In contrast to most inorganic semiconductors, organic materials can be processed easily from solution. This opens up new, highly promising manufacturing routes such as ink-jet printing for the low-cost production of opto-electronic devices such as light-emitting displays (LEDs), solar cells and transistors.

 

In order to advance organic devices it is imperative to understand very clearly how excited states are generated and what determines their energy and extent, how they migrate through the semiconductor, and how they decay. When addressing these issues we focus in particular on the relationship between electronic, chemical and morphological structure. We therefore use time-resolved luminescence and absorption spectroscopy in combination with electrical and structural studies.