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Secondary Ion Mass Spectroscopy study of transitions metals doped ZnO nanowires


EMSL Project ID
27792

Abstract

This proposal is aimed at the study of the structural properties of electrodeposited doped-ZnO nanowires using Secondary Ion Mass Spectroscopy (SIMS). ZnO is significant because of its wide-band gap (3.37eV) and large exciton binding energy (60meV), which could lead to room temperature photonic device fabrication [1-7]. Although research focusing on ZnO goes back many decades, the renewed interest is fueled by the availability of high-quality substrates and reports of p-type conduction, ferromagnetic behavior and spintronics applications when doped with transitions metals, which remains controversial. In this proposal, we would like to use SIMS measurements to confirm the incorporation of various transitions metal ions (Al, Cu, Co, Mn and Ni) which were added to the electrolyte in known concentrations during the electrochemical growth process.

Project Details

Project type
Exploratory Research
Start Date
2007-10-04
End Date
2008-10-05
Status
Closed

Team

Principal Investigator

Nadarajah Athavan
Institution
Portland State University

Team Members

Rolf Konenkamp
Institution
Portland State University

Related Publications

Athavan N, and R Konenkamp. 2011. "Dilute Magnetic Semiconductors from Electrodeposited ZnO Nanowires." Physica Status Solidi B, Basic Research 248(2):334-338. doi:10.1002/pssb.201046349
Nadarajah A, and RF Koenenkamp. 2012. "Improved performance of Nanowire-Quantum-Dot-Polymer Solar Cells by Chemical Treatment of the Quantum Dot with Ligand and Solvent Materials." Nanotechnology 23(48):485403. doi:10.1088/0957-4484/23/48/485403