Open Access. Powered by Scholars. Published by Universities.®

Nanoscience and Nanotechnology Commons

Open Access. Powered by Scholars. Published by Universities.®

University of South Florida

Barrier Height

Articles 1 - 1 of 1

Full-Text Articles in Nanoscience and Nanotechnology

Dc And Rf Characterization Of High Frequency Ald Enhanced Nanostructured Metal-Insulator-Metal Diodes, Olawale Adebimpe Ajayi Jun 2014

Dc And Rf Characterization Of High Frequency Ald Enhanced Nanostructured Metal-Insulator-Metal Diodes, Olawale Adebimpe Ajayi

USF Tampa Graduate Theses and Dissertations

Metal-Insulator-Metal (MIM), Metal-Insulator-Insulator-Metal (MIIM), and Metal-Insulator-Insulator-Insulator-Metal (MIIIM) quantum tunneling diodes have been designed, fabricated, and characterized. The key interest of this work was to develop tunneling diodes capable of operating and detecting THz radiation up to 30THz, which is well beyond the operation ranges of other semiconductor-based diodes.

Al2O3, HfO2 and TiO2 metal oxides were employed for studying the behavior of metal-insulator-metal (MIM) and metal-insulator-insulator-metal (MIIM) quantum tunneling diodes. Specifically, ultra-thin films of these oxides with varied thicknesses were deposited by atomic layer deposition (ALD) as the tunneling junction material that is sandwiched between platinum (Pt) and titanium (Ti) electrodes, …