电纺丝方法制备GaN:Eu2+ 纳米纤维与发光特征
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中国科学院半导体研究所,中国科学院半导体研究所,天津工业大学;天津工业大学

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国家自然科学基金项目(面上项目,重点项目,重大项目),中国博士后科学基金


Preparation and characterization of Eu2+ -doped GaN luminescent nanofibers by electrospinning method
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State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Tianjin Key Laboratory Of Optoelectronic Detection Technology And System School of electronic and information engineering,Tianjin polytechnic university,Tianjin

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    摘要:

    通过结合静电纺丝和氨化技术方法合成了Eu2 掺杂的GaN(GaN:Eu2 )纳米纤维。SEM和TEM图像显示纳米纤维由尺寸均匀分布的GaN纳米颗粒组成。XRD测试结果表明GaN:Eu2 样品主要为六方相GaN(h-GaN),其平均粒径为7.3 nm。进一步的拉曼测试结果显示出现了两个额外的GaN拉曼位移,波数分别位于252和422 cm-1。室温光致发光谱表明GaN基质中的Eu 2 在407 nm处产生了强烈的特征蓝色发光峰。

    Abstract:

    Eu2 -doped GaN (GaN:Eu2 ) nanofibers were synthesized by a facile approach that combined electrospinning and ammonification techniques. SEM and TEM images revealed that the nanofibers consist of GaN nanoparticles with uniform size. XRD result showed that the GaN:Eu2 sample predominantly exhibited the hexagonal phase of GaN (h-GaN) and the average grain size was evaluated to be 7.3 nm. Further Raman characterization showed that two extra GaN Raman shifts with the peaks of 252 and 422 cm-1 were observed. As was expected, characteristic strong blue emission from Eu2 ions doped in GaN matrix was observed at 407 nm in the photoluminescence spectrum.

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陈宇,魏学成,刘宏伟.电纺丝方法制备GaN:Eu2+ 纳米纤维与发光特征[J].红外与毫米波学报,2017,36(6):646~649]. CHEN Yu, WEI Xue-Cheng, LIU Hong-Wei. Preparation and characterization of Eu2+ -doped GaN luminescent nanofibers by electrospinning method[J]. J. Infrared Millim. Waves,2017,36(6):646~649.]

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  • 收稿日期:2017-03-24
  • 最后修改日期:2017-09-19
  • 录用日期:2017-06-22
  • 在线发布日期: 2017-11-30
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