Home > Archive>Volume 15, Issue 1, 2019 >26-30. DOI:https://doi.org/10.1007/s11801-019-8100-y
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Optical spectra of Eu2+ ion doped KMgF3 single crystals grown by Bridgman method
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1. Key Laboratory of Photo-electronic Materials, Ningbo University, Ningbo 315211, China;2. College of Physics and Electronic Engineering, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China;3. Department of Physics, Dalian Maritime University, Dalian 116026, China

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    Abstract:

    High-quality KMgF3 single crystal containing 0.5 mol% europium (Eu) was prepared by an improved Bridgman method. X-ray diffraction (XRD), photoluminescence spectra and fluorescence lifetime were measured. The results indicate the reduction of Eu3+ to Eu2+ in the KMgF3 single crystal. Under the excitation of 259 nm, 370 nm and 394 nm, the sample has two distinct emissions of Eu2+:4f7→4f7(~363 nm) and 4f65d1→4f7 (~440 nm). The substitution site for Eu ion is confirmed. The optical property investigation result shows that the Eu2+ doped KMgF3 single crystal may be used as potential laser media and related materials for optical devices.

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SHI Xu-dong, XIA Hai-ping, HU Jian-xu, ZHANG Jian-li, ZHU Yong-sheng, CHEN Bao-jiu. Optical spectra of Eu2+ ion doped KMgF3 single crystals grown by Bridgman method[J]. Optoelectronics Letters,2019,15(1):26-30

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History
  • Received:June 18,2018
  • Revised:August 01,2018
  • Online: March 26,2019
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