Luminescence properties and energy transfer processes in YAG:Yb,Er single crystalline films

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• 作者：Yu. Zorenko ; V. Gorbenko ; V. Savchyn ; M. Batentschuk ; A. Osvet ; C. Brabec
• 关键词：Single crystalline films ; Liquid phase epitaxy ; Luminescence ; YAG ; Er3+ and Yb3+ dopants
• 刊名：Radiation Measurements
• 出版年：2013
• 出版时间：September, 2013
• 年：2013
• 卷：56
• 期：Complete
• 页码：134-138
• 全文大小：1397 K

文摘

The paper is dedicated to the study of the optical properties of YAG:Yb,Er single-crystalline films (SCF) grown by liquid phase epitaxy. The absorption, cathodoluminescence and time-resolved photoluminescence spectra and photoluminescence decay curves were measured for the SCFs with different doping levels of Er³⁺ (from 0.6 to 4.2 at. % ) and Yb³⁺ (from 0.1 to 0.6 at. % ). The spectra, excited by synchrotron radiation in the fundamental absorption range of the YAG and in the intraionic absorption bands of both dopants, reveal energy transfer from the YAG host to the Er³⁺ and Yb³⁺ ions and between these ions.