Functional interfaces in organic electronic devices

Add to your list(s) Download to your calendar using vCal

• Dr. Norbert Koch, Humboldt-Universität zu Berlin, Institut für Physik, Germany
• Tuesday 13 January 2009, 14:30-15:30
• Kapitza Building Seminar Room, Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Dr. Z Chen.

A most appealing feature of the development of (opto-) electronic devices based on conjugated organic materials is the highly visible link between fundamental research and technological advances. Improved understanding of organic material properties can often instantly be implemented in novel device architectures, which results in a rapid progress of performance and functionality of devices. Interfaces between dissimilar materials – organic/organic and organic/inorganic – are inherent in organic electronic devices. It has been recognized that these interfaces are a key for device function and efficiency. Photoelectron spectroscopy is a key tool for investigating the energy levels at such contacts. However, complementary experimental methods (e.g., scanning tunneling microscopy, x-ray absorption spectroscopy, x-ray standing waves) have to be used in conjunction with theoretical modeling in order to obtain a comprehensive understanding of elementary physico-chemical interfacial phenomena. Prototypical examples will be presented that show how the complex interplay of molecular orientation, molecule-substrate charge transfer, and molecular conformation dependent dipoles controls the energy level alignment at molecule/electrode contacts.

This talk is part of the Optoelectronics Group series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• Kapitza Building Seminar Room, Cavendish Laboratory, Department of Physics
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• Optoelectronics Group
• School of Physical Sciences
• Thin Film Magnetic Talks
• few29

Note that ex-directory lists are not shown.