Dresden 2011 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 44: Poster Session I

HL 44.63: Poster

Dienstag, 15. März 2011, 18:00–21:00, P3

Microstructuring and characterization of Cu₂O/ZnO heterostructures — •Sören Zint, Julian Benz, Achim Kronenberger, Daniel Reppin, Philipp Hering, Torsten Henning, Peter J. Klar, and Bruno K. Meyer — I. Physikalisches Institut, Justus-Liebig-Universität, Heinrich-Buff-Ring 16, 35392 Giessen

Cuprous oxide (Cu₂O) is a promising candidate for photovoltaic applications due to its direct band gap in the visible spectral range. Moreover Cu₂O is a non toxic and sustainable material. Thin Cu₂O films can be deposited on different substrates by sputtering. Since the production of n-type Cu₂O is a difficult task, ZnO can be employed for fabricating a p-n-junction. We report on the growth of lateral Cu₂O/ZnO heterostructures and current-voltage measurements of these systems. We present a model for explaining the influence of the interface cross-section distribution on the current-voltage characteristics.