Near-single-band red upconversion luminescence in Yb/Er: BiOX (X = Cl, Br) nanoplatelets

作者：Wu, Weiwei; Chen, Daqin^*; Zhou, Yang; Wan, Zhongyi; Ji, Zhenguo

来源：Journal of Alloys and Compounds, 2016, 682: 275-283.

DOI：10.1016/j.jallcom.2016.04.305

• Lanthanide
• Upconversion
• Optical materials
• BiOCl
• BiOBr
• Nanocrystals

Yb/Er: BiOX (X - Cl, Br) nanoplatelets were prepared via a template-free route simply by introducing water into ethylene glycol solution containing reactants at room temperature. Post-sintering on the product was found to have no obvious influence on the size and morphology but greatly enhance Er3+ upconversion luminescence probably owing to the improvement in crystallinity of nanoplatelets. Impressively, benefited from the confined energy interactions between Yb3+ and Er3+ dopants within [X-Bi-O-Bi-X] layer in BiOX host, the investigated Yb/Er: BiOX (X - Cl, Br) nanoplatelets exhibited intense intrinsic near-single-band red upconversion emission under 980 nm or 1530 nm laser excitation.

• 出版日期2016-10-15
• 单位杭州电子科技大学