Intrinsic luminescence centers in <i>γ</i>- and <i>θ</i>-alumina nanoparticles

Intrinsic luminescence centers in γ- and θ-alumina nanoparticles

Amirsalari Abdolvahab¹, Shayesteh Saber Farjami^{1, †}, Ghahrizjani Reza Taheri^{2, ‡}

(color online) (a) Photoluminescence spectra of different calcinated alumina nanopowders measured under excitation wavelength of 200 nm (6.2 eV) at room temperature. (b)–(d) Deconvoluted luminescence bands of nanopowders calcinated at different temperatures.