naa a22 4500 510804225 CHVBK 20180411092758.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11664-013-2617-9 doi (NATIONALLICENCE)springer-10.1007/s11664-013-2617-9 Structure and Optical Properties of CeO2 Nanoparticles Synthesized by Precipitation [Elektronische Daten] [I-Tsan Liu, Min-Hsiung Hon, Lay Teoh] Cerium dioxide (CeO2) has special electrical and optical properties, and chemical and thermal stability. It has been used in semiconductor devices and as a luminescent material. In this work, CeO2 nanoparticles were synthesized by the precipitation method and the product annealed at various temperatures. Thermogravimetric analysis (TGA)/differential scanning calorimetry (DSC) results show that the optimum annealing temperature for fabrication of CeO2 nanoparticles is greater than 500°C. When the calcination temperature is increased from 550°C to 1050°C, Fourier-transform infrared (FTIR) results show that the water and impurities are almost completely removed, after calcination at 750°C. The x-ray diffraction (XRD) results suggest that the synthesized CeO2 exhibits a cubic fluorite structure. The crystallite size of the CeO2 increases from 8nm to 75nm when the calcination temperature is increased from 550°C to 1050°C. The absorption spectrum in the ultraviolet (UV) region from 372nm to 395nm demonstrates their applicability as UV-filter materials, and the shift of the estimated E g,eff from 3.21eV to 3.65eV demonstrates their applicability in photoelectric devices. CeO2 would be potentially important for applications such as insulator structures, stable capacitor devices, and light-emitting diodes (LEDs). TMS, 2013 CeO2 nationallicence optical properties nationallicence precipitation method nationallicence nanoparticles nationallicence Liu I-Tsan Department of Materials Science and Engineering, National Cheng Kung University, 701, Tainan, Taiwan aut Hon Min-Hsiung Department of Materials Science and Engineering, National Cheng Kung University, 701, Tainan, Taiwan aut Teoh Lay Department of Mechanical Engineering, National Pingtung University of Science and Technology, 912, Neipu, Pingtung, Taiwan aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/8(2013-08-01), 2536-2541 0361-5235 42:8<2536 2013 42 11664 https://doi.org/10.1007/s11664-013-2617-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-013-2617-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu I-Tsan Department of Materials Science and Engineering, National Cheng Kung University, 701, Tainan, Taiwan aut NATIONALLICENCE 700 1- Hon Min-Hsiung Department of Materials Science and Engineering, National Cheng Kung University, 701, Tainan, Taiwan aut NATIONALLICENCE 700 1- Teoh Lay Department of Mechanical Engineering, National Pingtung University of Science and Technology, 912, Neipu, Pingtung, Taiwan aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/8(2013-08-01), 2536-2541 0361-5235 42:8<2536 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 510352715 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer