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电沉积掺铝氧化锌纳米柱的光学性质裁剪

汤洋

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汤洋. 电沉积掺铝氧化锌纳米柱的光学性质裁剪[J]. , 2020, 13(6): 1257-1266. doi: 10.37188/CO.2020-0075
引用本文: 汤洋. 电沉积掺铝氧化锌纳米柱的光学性质裁剪[J]. , 2020, 13(6): 1257-1266.doi:10.37188/CO.2020-0075
TANG Yang. Tailoring the optical properties of Al-doped ZnO Nanorods by electrodeposition[J]. Chinese Optics, 2020, 13(6): 1257-1266. doi: 10.37188/CO.2020-0075
Citation: TANG Yang. Tailoring the optical properties of Al-doped ZnO Nanorods by electrodeposition[J].Chinese Optics, 2020, 13(6): 1257-1266.doi:10.37188/CO.2020-0075

电沉积掺铝氧化锌纳米柱的光学性质裁剪

doi:10.37188/CO.2020-0075
基金项目:国家自然科学基金(No. 61404007);北京市优秀人才培养拔尖自然科学资助项目(No. 2015000021223ZK38)
详细信息
    作者简介:

    汤 洋(1983—),男,吉林吉林人,高级工程师,2011年于中国科学院长春光学精密机械与物理研究所获得博士学位,主要从事太阳能电池与光伏建筑一体化方面的研究工作。Email:ytang118@163.com

  • 中图分类号:TM23

Tailoring the optical properties of Al-doped ZnO Nanorods by electrodeposition

Funds:National Natural Science Foundation of China (No. 61404007); the Beijing Talents Fund (No. 2015000021223ZK38)
More Information
  • 摘要:为在新型纳米结构太阳能电池中应用ZnO纳米柱阵列材料,则要求能够对纳米柱的几何形貌与光电物理性质进行裁剪与操控。本文使用电沉积方法制备了ZnO纳米柱阵列,通过在电解液中使用Al(NO 33和NH 4NO 3,实现了对纳米柱晶体质量、直径、阵列密度、柱间距、Al掺杂浓度、光学带隙、近带边发射、斯托克斯位移等物理性质的调控。其可在28~102 nm范围内操控ZnO纳米柱的直径。NH 4NO 3的使用可将纳米柱的阵列密度降低至2.7×10 9/cm 2及将纳米柱间距增大至164 nm。电解液中NH 4NO 3的使用可将ZnO纳米柱中的Al/Zn重量比提升至2.92%,结果表明NH 4NO 3可以有效地促进ZnO纳米柱的Al掺杂。通过Al(NO 33与NH 4NO 3可以对ZnO纳米柱的光学带隙在3.36~3.55 eV范围内进行裁剪,并对ZnO纳米柱的近带边发射性质进行操控。Al(NO 33的引入使ZnO纳米柱的斯托克斯位移增大至200 meV。NH 4NO 3能够有效地将样品的斯托克斯位移降低至26 meV。通过使用Al(NO 33和NH 4NO 3实现了对ZnO纳米柱阵列几何形貌与光电物理性质的有效裁剪,获得了高质量的纳米柱阵列材料。

  • 图 1样品1~5的X射线衍射图谱

    Figure 1.XRD patterns of samples 1~5

    图 2样品1~5的扫描电子显微镜图片

    Figure 2.Scanning electron microscopy images of samples 1~5

    图 3样品1~5的能量色散光谱

    Figure 3.EDX spectra of the samples 1~5

    图 4样品1~5的透射光谱。

    Figure 4.Transmission spectra of samples 1~5

    图 5样品1~5的光学带隙拟合图谱(线性拟合线为红色直线)

    Figure 5.Fitting plots of the band gap energies of samples 1~5 (The linear fitting curve is shown in red)

    图 6样品1~5的室温光致发光图谱

    Figure 6.Photoluminescence spectra of samples 1~5 at room temperature

    图 7样品1~5的室温光致发光图谱在300~470 nm范围的高斯拟合结果

    Figure 7.Gauss fitting results of photoluminescence spectra of samples 1~5 (300~470 nm) at room temperature

    表 1ZnO纳米柱的直径、密度、间距

    Table 1.ZnO nanorods’ diameter, density and distance

    Samples Diameter/nm Density/109cm−2 Distance/nm
    1 54±15 13.0
    2 57±20 11.0
    3 65±24 6.8 56
    4 102±44 1.9 127
    5 28±16 2.7 164
    下载: 导出CSV

    表 2样品1~5中ZnO纳米柱的NBE 1、NBE 2峰位、斯托克斯位移。(样品1~5的近带边发射峰位为拟合峰)

    Table 2.NBE 1, NBE 2 peak positions, and stokes shift of the ZnO nanorods in samples 1~5. The NBE peaks in samples 1~5 were from the fitting peaks.

    Samples NBE 1(eV) NBE 2(eV) Stokes shift (meV)
    1 3.347 3.252 183
    2 3.350 3.263 200
    3 3.336 3.227 94
    4 3.334 3.221 26
    5 3.353 3.236 67
    下载: 导出CSV
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出版历程
  • 收稿日期:2020-04-27
  • 修回日期:2020-05-27
  • 网络出版日期:2020-09-10
  • 刊出日期:2020-12-01

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