掺钕-掺镱-掺锌的氧化钇中的绿光上转换发射。
Green upconversion emission in Nd³⁺-Yb³⁺-Zn²⁺:Y₂O₃ phosphor.
机构信息
Laser & Spectroscopy Laboratory, Department of Applied Physics, Indian School of Mines, Dhanbad 826 004, Jharkhand, India.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2012 Dec;99:288-91. doi: 10.1016/j.saa.2012.09.001. Epub 2012 Sep 25.
The Y(2)O(3) phosphor powder codoped with Nd(3+):Yb(3+) ions have been synthesized through optimized combustion route. Crystalline structures of the prepared samples have been investigated by powder X-ray diffraction technique. Efficient upconversion emission in the green region upon 980 nm NIR CW diode laser excitation has been reported. The maximal enhancement in the intensity of the green upconversion emission band has been observed on codoping with Zn(2+) ions in the Nd(3+):Yb(3+) codoped sample. The processes responsible for such an enhancement in the green upconversion emission band which can be used for the localization and diagnosis of cancer has been explained in detail.
通过优化燃烧法合成了掺钕（Nd(3+)）和掺铒（Yb(3+)）的 Y(2)O(3) 荧光粉。通过粉末 X 射线衍射技术研究了所制备样品的晶体结构。报道了在 980nm 连续波近红外激光激发下，在绿光区的高效上转换发射。在 Nd(3+)：Yb(3+)共掺样品中掺入 Zn(2+)离子，观察到绿光上转换发射带的强度最大增强。详细解释了这种绿光上转换发射带增强的过程，该过程可用于癌症的定位和诊断。
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