Microstructural, Optical and Cytotoxicity Studies of Eu3+-Doped Y2O3 Nanoparticles Prepared by Simple Control of the Chain Length of Cross-Linkers via Pechini Method

作者：Bhattacharyya Debadrita; Hazra Chanchal; Gangwar Pooja; Sivakumar Sri^*; Mahalingam Venkataramanan

来源：Science of Advanced Materials, 2012, 4(5-6): 656-662.

DOI：10.1166/sam.2012.1334

• Pechini Method
• Nanoparticles
• Lanthanides
• Luminescence

It has been demonstrated that by simple variation of the molecular chain length of the polyethylene glycol used in the Pechini method, the microstructural features such as crystallite size, morphology, and size distribution of Eu3+-doped Y2O3 nanoparticles can be tuned. These changes in the microstructural features are supported by the optical properties of the Eu3+-doped Y2O3 nanoparticles. A thorough investigation on the role played by cross-linking reagent in controlling the microstructural properties as well as the optical properties of the resulting nanoparticles has been carried with XRD, SEM, photoluminescence and life time analyses. The study points to the fact that it is possible to control the microstructural features of the oxide-based nanomaterials prepared via high temperature methods just by slightly tuning the chain length of the cross-linkers. Finally, the cytotoxicity of the resulting nanoparticles has revealed that the particles show less or no toxicity to HeLa cells.

• 出版日期2012-6