| 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 |
| Optical spectra of Eu2+ ion doped KMgF3 single crystals grown by Bridgman method |
| Author Name | Affiliation | | SHI Xu-dong | Key Laboratory of Photo-electronic Materials, Ningbo University, Ningbo 315211, China | | XIA Hai-ping | Key Laboratory of Photo-electronic Materials, Ningbo University, Ningbo 315211, China | | HU Jian-xu | Key Laboratory of Photo-electronic Materials, Ningbo University, Ningbo 315211, China | | ZHANG Jian-li | Key Laboratory of Photo-electronic Materials, Ningbo University, Ningbo 315211, China | | ZHU Yong-sheng | College of Physics and Electronic Engineering, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China | | CHEN Bao-jiu | 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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