1. Oxide nanostructures for energy efficient white lighting
Principal Investigator: Irina Buyanova
Team members : Jan Eric Stehr, Shula Chen and Weimin Chen
Aims
To perform basic and material-related studies of novel functional nanostructures based on wide bandgap ZnO that are relevant to their applications as energy-saving light emitters, including white lighting
To resolve key material-related issues that currently limit device applications
To single out the most promising structural design of high-performance light emitters with a high efficiency and low costs
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2. Oxide nanostructures for energy efficient white lighting
Structural characterization (XRD, SEM, TEM)
Optical characterization (PL, transient-PL, magneto-PL, CL, Raman)
Magnetic Resonance (EPR, photo-EPR, ODMR)
Processing: ion implantation, electron irradiation, annealing
Techniques
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3. Oxide nanostructures for energy efficient white lighting
Results: example
Reproducible and controlled doping of ZnO nanowires with nitrogen by ion implantation
Identification of nitrogen related defects in ZnO nanowires by optical and magnetic resonance spectroscopy
Defect optimization for white light emission by thermal annealing
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