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July 18, 2005

ZnO nanotips grown on C-plane sapphire substrates

A scanning electron microscope (SEM) image showing ZnO nanotips grown on C-plane sapphire substrates.

This work was supported by National Science Foundation grant CCR 01-03096, "Feasibility studies on ZnO nanostructures and their device applications," an exploratory research in the Nanoscale Science and Engineering Initiative. Project goals were to (a) grow ZnO-based nanoscale structures, including nanotips and nanotip arrays, nanowires and quantum dots; and (b) investigate the broad applications of these ZnO nanostructures in UV optoelectronics, biosensors and advanced communications. The ZnO materials are grown using metalorganic chemical vapor deposition.

Credit: Dr. Yicheng Lu, Dr. Sriram Muthukumar and Dr. Nuri Emanetoglu, Department of Electrical and Computer Engineering, Rutgers University

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