Single-Photon Emission and Quantum Characterization of Zinc Oxide Defects

• DOI: 10.1021/nl204010e
• Publication Date: 2012-01-16T21:26:31Z
• Authors: Anthony J. Morfa; Brant C. Gibson; Matthias Karg; Timothy J. Karle; Andrew D. Greentree; Paul Mulvaney; Snjezana Tomljeno...
• Keywords: Wide-bandgap semiconductor

Room temperature single-photon emission and quantum characterization is reported for isolated defects in zinc oxide. The are observed thin films of both in-house synthesized commercial oxide nanoparticles. Emission spectra the red infrared, second-order photon correlation functions, lifetime measurements, count rates presented. Both two- three-state emitters identified. Sub-band gap absorption suggest these vacancy. These results identify a new source single photons readily available wide band semiconductor material which has exceptional electrical, optical, biocompatibility properties.