| Literature DB >> 22248087 |
Anthony J Morfa1, Brant C Gibson, Matthias Karg, Timothy J Karle, Andrew D Greentree, Paul Mulvaney, Snjezana Tomljenovic-Hanic.
Abstract
Room temperature single-photon emission and quantum characterization is reported for isolated defects in zinc oxide. The defects are observed in thin films of both in-house synthesized and commercial zinc oxide nanoparticles. Emission spectra in the red and infrared, second-order photon correlation functions, lifetime measurements, and photon count rates are presented. Both two- and three-state emitters are identified. Sub-band gap absorption and red emission suggest these defects are the zinc vacancy. These results identify a new source of single photons in a readily available wide band gap semiconductor material which has exceptional electrical, optical, and biocompatibility properties.Entities:
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Year: 2012 PMID: 22248087 DOI: 10.1021/nl204010e
Source DB: PubMed Journal: Nano Lett ISSN: 1530-6984 Impact factor: 11.189