期刊
NANOSCALE
卷 7, 期 34, 页码 14248-14253出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr02173a
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资金
- Basic Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2014R1A1A2008489]
- National Research Foundation of Korea (NRF) Grant - Korean Government (MSIP) [2014R1A4A1008140]
- National Natural Science Foundation of China [U1232166]
- National Research Foundation of Korea [2014R1A1A2008489, 2014R1A4A1008140] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Novel luminescent and amorphous La2O3-ZrO2:Eu3+ (LZE) nanofibrous membranes with robust softness are fabricated for the first time via a facile electrospinning technique. By incorporating zirconium oxide, the as-prepared lanthanum oxide nanofibrous membranes can be dramatically changed from extreme fragility to robust softness. Meanwhile, the softness and luminescent performance of LZE nanofibrous membranes can be finely controlled by regulating the doping concentration of zirconium oxide and europium in lanthanum oxide nanofibers. Additionally, the crystal structure analysis using X-ray diffractometer and high resolution transmission electron microscopy measurements have confirmed the correlation between the amorphous structure and softness. Furthermore, LZE membranes show the characteristic emission of Eu3+ corresponding to D-5(0,1, 2)-F-7(0,1,2,3,4) transitions due to an efficient energy transfer from O2- to Eu3+. The LZE nanofibrous membranes with the optimum doping Eu3+ concentration of 3 mol% exhibit excellent softness and luminescent properties, which make the materials to have potential applications in fluorescent lamps and field emission displays.
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