Site occupation and upconversion process enabled multicolor emission in a Gd<sub>3</sub>GaO<sub>6</sub>:Bi<sup>3+</sup>,Er<sup>3+</sup> phosphor for quad-mode anti-counterfeiting
Zhijun Li, Zeyu Lyu, Pengcheng Luo, Shuai Wei, Chengyu Zhuo, Dashuai Sun, Sida Shen, Hongpeng You
Abstract
Enabled by the site occupation dependent emission of Bi 3+ and the upconversion process dependent emission of Er 3+ , quad-mode anti-counterfeiting with four distinguishable images is achieved with only the Gd 3 GaO 6 :Bi 3+ ,Er 3+ phosphor.
Topics & Concepts
PhosphorPhoton upconversionMaterials scienceProcess (computing)Analytical Chemistry (journal)PhysicsOptoelectronicsChemistryLuminescenceComputer scienceOperating systemChromatographyLuminescence Properties of Advanced MaterialsRadiation Detection and Scintillator TechnologiesLuminescence and Fluorescent Materials