Bright persistent green emitting water-dispersible Zn<sub>2</sub>GeO<sub>4</sub>:Mn nanorods
Bhupendra B. Srivastava, Santosh K. Gupta, Yang Li, Yuanbing Mao
Abstract
, pH of 10.5, and Zn : Ge = 1 : 2. This fact suggests that zinc deficiency and excess of germanium lead to enhancement in emission intensity. More importantly, the undoped ZGO NRs could not display any kind of persistent luminescence, whereas the ZGOM NRs show excellent green afterglow properties (even visible with the naked eye) upon irradiation with 254 nm UV light. Such water dispersible nanocrystals with high QY and afterglow properties offer great potential for developing cost-effective and environmentally benign phosphors for multifunctional applications in society.
Topics & Concepts
NanorodMaterials scienceLuminescenceQuantum yieldYield (engineering)NanotechnologyAnalytical Chemistry (journal)OptoelectronicsChemistryPhysicsOpticsMetallurgyEnvironmental chemistryFluorescenceLuminescence Properties of Advanced MaterialsGa2O3 and related materialsZnO doping and properties