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  • ISSN 1006-3080
  • CN 31-1691/TQ

镍锰共掺杂钙钛矿纳米线用作荧光粉制备橙光发光二极管

曾凤 朱以华 李春忠 卫钢 LindaVaradi

曾凤, 朱以华, 李春忠, 卫钢, LindaVaradi. 镍锰共掺杂钙钛矿纳米线用作荧光粉制备橙光发光二极管[J]. 华东理工大学学报(自然科学版). doi: 10.14135/j.cnki.1006-3080.20210407008
引用本文: 曾凤, 朱以华, 李春忠, 卫钢, LindaVaradi. 镍锰共掺杂钙钛矿纳米线用作荧光粉制备橙光发光二极管[J]. 华东理工大学学报(自然科学版). doi: 10.14135/j.cnki.1006-3080.20210407008
ZENG Feng, ZHU Yihua, LI Chunzhong, WEI Gang, LINDA Varadi. Nickel-Manganese Co-doped Perovskite Nanowires as Phosphors toward Light-Emitting Applications[J]. Journal of East China University of Science and Technology. doi: 10.14135/j.cnki.1006-3080.20210407008
Citation: ZENG Feng, ZHU Yihua, LI Chunzhong, WEI Gang, LINDA Varadi. Nickel-Manganese Co-doped Perovskite Nanowires as Phosphors toward Light-Emitting Applications[J]. Journal of East China University of Science and Technology. doi: 10.14135/j.cnki.1006-3080.20210407008

镍锰共掺杂钙钛矿纳米线用作荧光粉制备橙光发光二极管

doi: 10.14135/j.cnki.1006-3080.20210407008
基金项目: 国家自然科学基金(21776092)
详细信息
    作者简介:

    曾凤(1994-),女,四川内江人,硕士生,主要研究钙钛矿材料。E-mail:2857451208@qq.com

    通讯作者:

    朱以华,E-mail:yhzhu@ecust.edu.cn

    卫钢,E-mail:gang.wei@csiro.au

  • 中图分类号: TB321

Nickel-Manganese Co-doped Perovskite Nanowires as Phosphors toward Light-Emitting Applications

  • 摘要: 采用配体辅助再沉淀法,在锰掺杂钙钛矿(CsPbxMn1-x(Cl/Br)3)纳米晶(NCs)的前体溶液中加入氯化镍。发现相比于锰掺杂钙钛矿NCs,镍锰共掺杂钙钛矿NCs的Mn2+荧光强度增加了约100%,且形貌由接近立方块(边长14 nm)转变为纳米线(宽度为2~3 nm)。这可归因于镍离子的加入降低了(100)表面能,充分溶解的前体得到更多晶核从而诱导生长为钙钛矿纳米线。随后纳米线作为荧光粉与市售紫外芯片构建了简易发光二极管器件,其强而宽的橙色荧光发射证实了所制备的Cs(PbxMnyNi1-x-y)(Cl/Br)3纳米线在发光应用中的潜力。最后,在锰掺杂零维网络钙钛矿(Cs4PbxMn1-x(Cl/Br)6)的基础上加入了氯化镍,得到的镍锰共掺杂零维网络钙钛矿纳米线,验证了钙钛矿纳米线生长机理,为合成新型掺杂钙钛矿纳米线提供了参考。

     

  • 图  1  (a) Cs(PbxMnyNi1-x-y)(Cl/Br)3 NCs正己烷溶液的UV-Vis谱;(b) Cs(PbxMnyNi1-x-y)(Cl/Br)3 NCs正己烷溶液的PL谱

    Figure  1.  (a) Absorbance spectrum of Cs(PbxMnyNi1-x-y)(Cl/Br)3 nanocrystals; (b) Photoluminescence spectrum of Cs(PbxMnyNi1-x-y)(Cl/Br)3 nanocrystals

    图  2  Cs(PbxMnyNi1-x-y)(Cl/Br)3 NCs TEM图像

    Figure  2.  TEM picture of Cs(PbxMnyNi1-x-y)(Cl/Br)3 nanocrystals

    图  3  Cs(PbxMnyNi1-x-y)(Cl/Br)3 NCs XRD结果

    Figure  3.  XRD pattern of Cs(PbxMnyNi1-x-y)(Cl/Br)3 nanocrystals

    图  4  在NiCl2不存在和存在情况下制备的掺杂钙钛矿纳米晶体生长过程

    Figure  4.  The proposed growth process of nanocrystals obtained in the absence and presence of nickel chloride as a dopant

    图  5  Cs(PbxMnyNi1-x-y)(Cl/Br)3 NCs的EPR波谱

    Figure  5.  Room-temperature X-band electron paramagnetic resonance spectra of Cs(PbxMnyNi1-x-y)(Cl/Br)3 nanocrystals

    图  6  钙钛矿薄膜SEM-EDS分析

    Figure  6.  SEM-EDS analysis of Cs, Pb, Br, Cl, Mn and Ni of the perovskite films

    图  7  (a) Cs(PbxMnyNi1-x-y)(Cl/Br)3钙钛矿NWs LED色域坐标图(插图:基于镍锰共掺杂钙钛矿NWs荧光粉和商用UV芯片的LED器件发光数码图);(b) 橙色LED器件的PL图

    Figure  7.  (a) Gamut coordinate chart of Cs(PbxMnyNi1-x-y)(Cl/Br)3 perovskite nanowires (inset: LED device based on perovskite nanowires phosphors and commercially available UV chip); (b) Photoluminescence spectrum of orange LED device

    图  8  锰掺杂及镍锰共掺杂钙钛矿样品PL谱图

    Figure  8.  Photoluminesence spectrum of manganese doped and nickel-manganese co-doped perovskite samples

    图  9  锰掺杂及镍锰共掺杂钙钛矿样品紫外-可见光谱图

    Figure  9.  UV-Vis spectrum of manganese doped and nickel-manganese co-doped perovskite samples

    图  10  掺杂钙钛矿X射线衍射图

    Figure  10.  XRD patterns of doped perovskite

    图  11  掺杂钙钛矿TEM结果

    Figure  11.  TEM images of doped perovskite

    表  1  锰掺杂及镍锰共掺杂钙钛矿NCs粉末ICP-MS结果

    Table  1.   ICP-MS results of the content of manganese and nickel in manganese doped and nickel-manganese co-doped perovskite nanocrystals powder

    SampleMn content (mg/kg)Ni content (mg/kg)
    Mn doped perovskite NCs6100
    Ni/Mn co-doped perovskite NCs720315
    下载: 导出CSV

    表  2  蒽和掺杂钙钛矿NCs的PL谱图积分面积

    Table  2.   The integral area of anthracene and doping perovskite nanocrystals

    SpectrumStart/nmEnd/nmIntegral area
    Anthracene n-hexane solution380700101791.2
    Mn Doping perovskite nanocrystal n-hexane solution380700111745.7
    Mn/Ni Codoping perovskite nanocrystal n-hexane solution380700171336.9
    n-Hexane3807003237.1
    Anthracene38070098554.1
    Mn Doping perovskite nanocrystals380700108508.6
    Mn/Ni Codoping perovskite nanocrystals380700168099.8
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-04-07
  • 网络出版日期:  2021-07-01

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