Departamento de Física de Materiales (Módulo 04), Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente, 7, 28049, Madrid, Spain.
Nanoscale. 2011 Mar;3(3):1046-52. doi: 10.1039/c0nr00676a. Epub 2010 Dec 13.
Monodisperse YF3:Tm3+/Yb3+ nanocrystals have been synthesized to explore the visible up-converting properties under near infrared (975 nm) excitation. It has been found that the nanoparticles exhibit intense red up-converted emissions, in addition to the characteristic UV and blue Tm3+-bands. It is demonstrated that, by carefully selecting Tm3+ and Yb3+ contents, the relative intensity of the different emissions can be changed producing an overall emission colour that can be tuned from blue to magenta.
已合成单分散 YF3:Tm3+/Yb3+纳米晶体，以探索近红外（975nm）激发下的可见上转换性质。研究发现，纳米粒子除了呈现出特征性的 UV 和蓝色 Tm3+ 带之外，还表现出强烈的红色上转换发射。研究表明，通过仔细选择 Tm3+和 Yb3+的含量，可以改变不同发射的相对强度，从而产生从蓝色到品红色的整体可调发射颜色。
