Unexpected optical activity of cerium in Y2O3:Ce3+, Yb3+, Er3+ up and down-conversion system

被引：30

作者：

Marin, Riccardo ^{[1
]}

Back, Michele ^{[1
]}

Mazzucco, Nicolo ^{[1
]}

Enrichi, Francesco ^{[2
]}

Frattini, Romana ^{[1
]}

Benedetti, Alvise ^{[1
]}

Riello, Pietro ^{[1
]}

机构：

[1] Univ Ca Foscari Venezia, Dipartimento Sci Mol & Nanosistemi, I-30170 Venice, VE, Italy

[2] NanoFab Nanofabricat Facil, I-30175 Marghera, VE, Italy

来源：

DALTON TRANSACTIONS | 2013年 / 42卷 / 48期

关键词：

LUMINESCENCE PROPERTIES; UP-CONVERSION; MU-M; NANOCRYSTALS; PHASE; PHOTOLUMINESCENCE; EMISSION; ENHANCEMENT; PHOSPHORS; CE;

D O I：

10.1039/c3dt51297e

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this work we synthesized rare earth-doped yttria nanocrystals via the Pechini method. We used Ce3+, Yb3+ and Er3+ as dopant ions and studied their behavior when they are simultaneously embedded in the yttrium oxide lattice. The tri-doped system exhibits both downshifting and up-converting properties, due to the presence of, respectively, cerium-erbium and ytterbium-erbium couples. Efforts were put into determination of the effects of the presence of increasing content of cerium. We synthesized a series of samples having the general formula (Y0.88-xCexYb0.1Er0.02)(2)O-3, where x = 0.01, 0.02, 0.10, 0.20, and 0.40. The structural properties of the samples were analyzed by the X-ray powder diffraction (XRPD) technique and the morphological features were disclosed using transmission electron microscope (TEM) observations. Photoluminescence properties were tested by carrying out photoluminescence (PL) emission, photoluminescence excitation (PLE) and lifetime (LT) measurements.

引用

页码：16837 / 16845

页数：9

共 39 条

[1] Optical investigation of Tb3+-doped Y2O3 nanocrystals prepared by Pechini-type sol-gel process [J].