Engineering white light-emitting Eu-doped ZnO urchins by biopolymer-assisted hydrothermal method

• DOI: 10.1063/1.2357031
• Publication Date: 2007-05-03T19:10:51Z
• Authors: Shuyan Gao; Hongjie Zhang; Ruiping Deng; Xiaomei Wang; Dehui Sun; Guoli Zheng
• Keywords: Nanorod; Biopolymer; Hydrothermal Synthesis

With the presence of biopolymer-sodium alginate as additive, Eu-doped ZnO (zinc oxide) urchins consisting nanorods were synthesized through a hydrothermal route. X-ray diffraction pattern makes evident absence phase other than würtzite ZnO. Upon excited by 325nm xenon laser, such nanostructured emit white light, which originates from luminescence and intra-4f transitions Eu3+ ions. Besides acting stabilizing agent, sodium may also sensitize ions in nanostructures facilitate energy transfer host to