Single photon emission from ZnO nanoparticles

被引：40
|
作者：
Choi, Sumin [1 ]
Johnson, Brett C. [2 ]
Castelletto, Stefania [3 ]
Ton-That, Cuong [1 ]
Phillips, Matthew R. [1 ]
Aharonovich, Igor [1 ]
机构：
[1] Univ Technol Sydney, Sch Phys & Adv Mat, Ultimo, NSW 2007, Australia
[2] Univ Melbourne, Ctr Quantum Computat & Commun Technol, Sch Phys, Parkville, Vic 3010, Australia
[3] RMIT Univ, Sch Aerosp Mech & Mfg Engn, Melbourne, Vic 3000, Australia
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 26期
基金：
澳大利亚研究理事会;
关键词：
DIAMOND; CENTERS;
D O I：
10.1063/1.4872268
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Room temperature single photon emitters are very important resources for photonics and emerging quantum technologies. In this work, we study single photon emission from defect centers in 20nm zinc oxide (ZnO) nanoparticles. The emitters exhibit bright broadband fluorescence in the red spectral range centered at 640nm with polarized excitation and emission. The studied emitters showed continuous blinking; however, bleaching can be suppressed using a polymethyl methacrylate coating. Furthermore, hydrogen termination increased the density of single photon emitters. Our results will contribute to the identification of quantum systems in ZnO. (C) 2014 AIP Publishing LLC.
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页数：4
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