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ZnO纳米棒/CdS量子点的制备及紫外-可见探测性能研究

胡轶 胡更新 张洁静 桑丹丹 李易昆 高世勇

胡轶, 胡更新, 张洁静, 桑丹丹, 李易昆, 高世勇. ZnO纳米棒/CdS量子点的制备及紫外-可见探测性能研究[J]. 中国光学(中英文), 2019, 12(6): 1271-1278. doi: 10.3788/CO.20191206.1271
引用本文: 胡轶, 胡更新, 张洁静, 桑丹丹, 李易昆, 高世勇. ZnO纳米棒/CdS量子点的制备及紫外-可见探测性能研究[J]. 中国光学(中英文), 2019, 12(6): 1271-1278. doi: 10.3788/CO.20191206.1271
HU Yi, HU Geng-xin, ZHANG Jie-jing, SANG Dan-dan, LI Yi-kun, GAO Shi-yong. Fabrication of ZnO nanorods/CdS quantum dots and its detection performance in UV-Visible waveband[J]. Chinese Optics, 2019, 12(6): 1271-1278. doi: 10.3788/CO.20191206.1271
Citation: HU Yi, HU Geng-xin, ZHANG Jie-jing, SANG Dan-dan, LI Yi-kun, GAO Shi-yong. Fabrication of ZnO nanorods/CdS quantum dots and its detection performance in UV-Visible waveband[J]. Chinese Optics, 2019, 12(6): 1271-1278. doi: 10.3788/CO.20191206.1271

ZnO纳米棒/CdS量子点的制备及紫外-可见探测性能研究

doi: 10.3788/CO.20191206.1271
基金项目: 

黑龙江省博士后基金资助项目 LBH-Q16104

山东省自然科学基金资助项目 ZR2017QA013

详细信息
    作者简介:

    胡轶(1982—), 男, 山西太原人, 硕士, 讲师, 2012年于山西大学获得硕士学位, 主要从事低维材料制备与性能方面的研究。E-mail:huyi198281@126.com

    高世勇(1980—), 男, 山西大同人, 博士, 硕士生导师, 2010年于吉林大学获得博士学位, 主要从事宽带隙半导体材料与器件方面的研究。E-mail:gaoshiyong@hit.edu.cn

  • 中图分类号: TN36

Fabrication of ZnO nanorods/CdS quantum dots and its detection performance in UV-Visible waveband

Funds: 

Postdoctoral Science Foundation of Heilongjiang Province LBH-Q16104

Natural Science Foundation of Shandong Province ZR2017QA013

More Information
  • 摘要: 本文采用水热法在ITO衬底上制备了ZnO纳米棒阵列,然后用化学水浴沉积法在纳米棒上制备CdS量子点。分别利用SEM和XRD对样品形貌和晶体结构进行表征。结果表明,球状的CdS量子点均匀地包覆在ZnO纳米棒表面,且结晶质量较好。基于ZnO纳米棒和ZnO纳米棒/CdS量子点制备的探测器对紫外光都具有很好的响应,然而与ZnO纳米棒探测器相比,ZnO纳米棒/CdS量子点探测器在相同条件下的光电流提高了7倍,为0.52 mA。此外,ZnO纳米棒/CdS量子点探测器对绿光和蓝光也表现出了很好的响应。

     

  • 图 1  ZnO纳米棒(a,b)和ZnO纳米棒/CdS量子点(c,d)的SEM图

    Figure 1.  SEM images of ZnO nanorods(a, b) and ZnO nanorods/CdS quantum dots(c, d)

    图 2  ZnO纳米棒(a)和ZnO纳米棒/CdS量子点(b)的XRD图谱

    Figure 2.  XRD patterns of ZnO nanorods(a) and ZnO nanorods/CdS quantum dots(b)

    图 3  ZnO纳米棒探测器和ZnO纳米棒/CdS量子点探测器在紫外光下的Ⅰ-Ⅴ特性曲线

    Figure 3.  Ⅰ-Ⅴ characteristic curves of ZnO nanorods detector and ZnO nanorods/CdS quantum dots detector under UV illumination

    图 4  ZnO纳米棒探测器和ZnO纳米棒/CdS量子点探测器的光响应图谱

    Figure 4.  Photoresponse spectra of ZnO nanorods detector and ZnO nanorods/CdS quantum dots detector

    图 5  ZnO纳米棒探测器和ZnO纳米棒/CdS量子点探测器在开/关紫外光下的响应特性曲线

    Figure 5.  Time dependent current response curves of ZnO nanorods detector and ZnO nanorods/CdS quantum dots detector under on/off UV illumination

    图 6  ZnO纳米棒探测器和ZnO纳米棒/CdS量子点探测器分别在开/关蓝光下的响应特性曲线

    Figure 6.  Time dependent current response curves of ZnO nanorods detector and ZnO nanorods/CdS quantum dots detector under on/off blue light

    图 7  ZnO纳米棒探测器和ZnO纳米棒/CdS量子点探测器分别在开/关绿光下的响应特性曲线

    Figure 7.  Time dependent current response curves of ZnO nanorods detector and ZnO nanorods/CdS quantum dots detector under on/off green light

    图 8  ZnO纳米棒和ZnO纳米棒/CdS量子点的PL图谱

    Figure 8.  PL spectra of ZnO nanorods and ZnO nanorods/CdS quantum dots

    图 9  ZnO纳米棒/CdS量子点在紫外光下(a)和可见光下(b)的探测机理图

    Figure 9.  Schematic illustration of ZnO nanorods/CdS quantum dots detector under UV(a) and visible light(b)

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出版历程
  • 收稿日期:  2019-01-29
  • 修回日期:  2019-03-03
  • 刊出日期:  2019-12-01

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