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Resonant Tunneling and Room Temperature Negative Differential Resistance in TiO2/MEH-PPV Junctions for Quantum Functional Circuits

Woo-Jun Yoon, Andrew P. Bonifas, Richard L. McCreery, and Paul R. Berger

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Abstract

We demonstrate robust room temperature negative differential resistance and logic circuit operations using polymer tunnel diodes (ITO/TiO2/MEH-PPV/Al). Resonant tunneling is believed to occur through localized defect levels in the TiO2 characterized by ultraviolet/visible absorption spectrometry.

© 2006 Optical Society of America

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