• Optoelectronics Letters
  • Vol. 15, Issue 1, 26 (2019)
Xu-dong SHI1, Hai-ping XIA1、*, Jian-xu HU1, Jian-li ZHANG1, Yong-sheng ZHU2, and Bao-jiu CHEN3
Author Affiliations
  • 1Key Laboratory of Photo-electronic Materials, Ningbo University, Ningbo 315211, China
  • 2College of Physics and Electronic Engineering, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
  • 3Department 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 in-dicate 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
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    Received: Jun. 18, 2018
    Accepted: Aug. 1, 2018
    Posted: Jan. 1, 2019
    Published Online: Apr. 11, 2019
    The Author Email: Hai-ping XIA (hpxcm@nbu.edu.cn)