TY - JOUR A1 - Chung, Kelvin A1 - Leung, Yu H. A1 - To, Chap H. A1 - Djurišić, Aleksandra B. A1 - Tomljenovic-Hanic, Snjezana T1 - Room-temperature single-photon emitters in titanium dioxide optical defects JF - Beilstein Journal of Nanotechnology PY - 2018/// VL - 9 SP - 1085 EP - 1094 SN - 2190-4286 DO - 10.3762/bjnano.9.100 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.9.100 KW - fluorescence KW - optical defects KW - room temperature KW - single-photon emitters KW - titanium dioxide N2 - Fluorescence properties of crystallographic point defects within different morphologies of titanium dioxide were investigated. For the first time, room-temperature single-photon emission in titanium dioxide optical defects was discovered in thin films and commercial nanoparticles. Three-level defects were identified because the g(2) correlation data featured prominent shoulders around the antibunching dip. Stable and blinking photodynamics were observed for the single-photon emitters. These results reveal a new room-temperature single-photon source within a wide bandgap semiconductor. ER -