表征(材料科学)
纳米晶
兴奋剂
材料科学
纳米技术
光电子学
作者
P. Suneetha,Ch. Rajesh,M. V. Ramana
标识
DOI:10.1088/2053-1591/aa7e41
摘要
This paper reports the synthesis of neodymium (Nd)-doped calcium tungstate (CaWO4) nanocrystals (NCs). The thus synthesized NCs were analyzed for phase identification using x-ray diffraction (XRD). The XRD pattern reveals that the formed NCs are in the I41/a space group, and their average size is around 47 nm. A scanning electron microscope (SEM) image shows that the NCs are in the form of rectangular shapes. The presence of rare earth ions in the Nd:CaWO4 NCs is confirmed by energy dispersive analysis of the x-rays (EDAX). To further confirm the presence of rare earth ions, photoluminescence and photoluminescence excitation studies were carried out on these NCs. Emissions related to Nd3+ ions were observed under 587 nm excitation, and the peaks were assigned to the characteristic 4F3/2–4I9/2, 4F3/2–4I11/2 and 4F3/2–4I13/2 transitions of the Nd ions.
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