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SYOO: Organic Optoelectronics and Photonics

SYOO 3: Organic Optoelectronics and Photonics I

SYOO 3.2: Hauptvortrag

Montag, 7. März 2005, 14:45–15:30, TU HE101

Organic Semiconductors: New Materials, Physics and Devices for Modern Optoelectronics — •Stephen Forrest — Princeton Institute for the Science and Technology of Materials (PRISM), Department of Electrical Engineering, Princeton University, Princeton, NJ USA

Although research on the physics and chemistry of organic semiconductors has been vigorously pursued for over half a century, the exploitation of this vast range of materials remains in its infancy. Indeed, due to the weak coupling between molecules within a thin film composed of small molecular weight or polymeric materials, the fundamental processes of charge transport and light generation are not as well understood as their highly ordered, inorganic semiconductor counterparts. In this respect, gaining a full understanding of such soft materials remains a significant challenge in the field of condensed matter physics. Nevertheless, already we are seeing applications of organics enter the commercial sphere; most notably in organic emissive displays and thin film transistor circuits for product identification. In this presentation, I will review some of the important and unique properties of organic materials for electronic applications, focusing on film growth modes, and electronic and optical processes that are closely linked to both film and molecular structure. Furthermore, I will discuss several important device demonstrations based on the very high performance of organic semiconductors as they are applied to organic light emitting devices, thin film transistors, and photovoltaic cells.