CEEM Seminar: David Ginley

David Ginley
Group Manager, Process Technology and Advanced Concepts
National Renewable Energy Lab (NREL)

Interfacial Studies and Modification of Contacts Toward More Stable OPV Devices

September 8, 2009 | 2:30PM | 1601 Elings Hall

Contacts are a key area for defining the performance and stability of OPV devices. We will discuss both new analytical studies on the stability and behavior of conventional and inverted contact geometries. We will present recent results on the use of thin oxide layers on InSnOx and ZnO contacts to improve performance and stability including TiO2, gradient doped ZnO and NiO. We will also present results on using time resolved microwave conductivity measurements (TRMC) to look at the inherent properties of the polymer and the bulk heterojunction. These studies provide insight into the stability and the transport in the polymer and polymer/fullerene mix and provide some guidance on next steps to improve OPV devices.
David Ginley is a Research Fellow and Group Manager in Process Technology and Advanced Concepts at the National Renewable Energy Laboratory. He isleading activities in the applications of nanotechnology/nanomaterials, organic electronics, transition metal oxides (ferroelectric materials, rechargeable Li batteries, fuel cells, and transparent conductors) and ink jet printing for solar cells. His current work focuses on the development and basic science of very high quality materials (transparent conducting oxides, ferroelectric materials, organic materials and nano-materials) and the development of next generation process technology for materials and device development (combinatorial methods, direct write materials, composite materials and non-vacuum processing).
Dr. Ginley has published more than 380 papers, received 29 patents, and been honored with a Department of Energy Award for Sustained Research in Superconducting Materials, R&D 100 awards for novel chemical etches, for nanoparticle technology, for ferroelectric frequency agile electronics, for alumina based nanofibers and for solution based CIS solar cells. He has also received three FLC technology transfer awards. He is also an adjunct Professor of Physics at CU Boulder and a Professor of Physics at the Colorado School of Mines. He received the Presidents Service Award in 2007.

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