Photoluminescence Spectra of UO2(NO3)2.

Authors :: Gorelik, V. S.
Loboiko, A. A.
Bi, Dongxue
Source :: Inorganic Materials; Aug2019, Vol. 55 Issue 8, p827-833, 7p
Publication Year :: 2019
Abstract: We have measured photoluminescence spectra of uranyl nitrate (UO<subscript>2</subscript>(NO<subscript>3</subscript>)<subscript>2</subscript>) crystals and a UO<subscript>2</subscript>(NO<subscript>3</subscript>)<subscript>2</subscript>-filled opal crystal. The spectra have been compared to the corresponding photoluminescence spectrum of photonic glass. The photoluminescence spectra were excited by semiconductor light-emitting diodes, a cw laser, and repetitive laser pulses. The excitation wavelengths were located in the resonance absorption band of the uranyl compound. This has offered the possibility of measuring the photoluminescence spectrum of UO<subscript>2</subscript>(NO<subscript>3</subscript>)<subscript>2</subscript> at an acquisition time of 1 ms, using the smallest possible amount of the substance (down to 10<superscript>–9</superscript> g). The spectra have been obtained in the range 200–1000 nm using a fiber-optic minispectrometer. [ABSTRACT FROM AUTHOR]