ZnO纳米线的制备及其影响因素
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摘要
【目的】采用化学浴沉积法在ITO导电玻璃衬底上制备ZnO纳米线。【方法】研究种子层结晶性、PEI浓度对ZnO纳米线生长的影响,并用SEM、XRD、AFM对其形貌、晶体结构等进行表征。【结果】衬底温度为200℃时生长的ZnO纳米线垂直排列呈六角纤锌矿结构;PEI浓度为4.5 mmol/L时,ZnO纳米线的长径比最高,达20.56。【结论】制备的ZnO纳米线取向良好、结构尺寸均匀、长径比高。
【Objective】In this paper,ZnO nanowires were synthesized on ITO conductive glasses by chemical bath deposition.【Methods】The parameters of processing ZnO nanowires were systematically investigated,including the crystallinity of ZnO seed layers,PEI concentration.The morphology and crystal structure of ZnO nanowires were characterized by SEM,XRD,AFM.【Results】ZnO nanowires were vertically grown on ITO substrate and hexagonal wurtzite structure when the temperature was 200℃.Moreover,we obtained ZnO nanowires with aspect ratio of 20.56 at the PEI concentration of 4.5 mmol/L.【Conclusion】The prepared ZnO nanowires have good orientation,uniform size and high aspect ratio.
【Objective】In this paper,ZnO nanowires were synthesized on ITO conductive glasses by chemical bath deposition.【Methods】The parameters of processing ZnO nanowires were systematically investigated,including the crystallinity of ZnO seed layers,PEI concentration.The morphology and crystal structure of ZnO nanowires were characterized by SEM,XRD,AFM.【Results】ZnO nanowires were vertically grown on ITO substrate and hexagonal wurtzite structure when the temperature was 200℃.Moreover,we obtained ZnO nanowires with aspect ratio of 20.56 at the PEI concentration of 4.5 mmol/L.【Conclusion】The prepared ZnO nanowires have good orientation,uniform size and high aspect ratio.
引文
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[3]KIM S K,GOPI C V V M,RAO S S,et al.Highly efficient yttrium-doped ZnO nanorods for quantumdot-sensitized solar cells[J].Applied Surface Science,2016,365:136-142.
[4]YIN Y T,QUE W X,KAM C H.ZnO nanorods on ZnO seed layer derived by sol-gel process[J].Journal of SolGel Science and Technology,2010,53(3):605-612.
[5]GHOUL M,BRAIEK Z,BRAYEK A,et al.Synthesis of core/shell ZnO/ZnSe nanowires using novel low cost twostep selector chemical deposition technique[J].Journal of Alloys and Compounds,2015,647:660-664.
[6]BAXTER J B,WALKERAM,VAN OMMERING K,et al.Synthesis and characterization of ZnO nanowires and their integration intodye-sensitized solar cells[J].Nanotechnology,2006,17(11):304-312.
[7]SONG J Z,NING X,ZENG H B.ZnO nanowire lines and bundles:Template-deformation-guided alignment for patterned field-electron emitters[J].Current Applied Physics,2015,15(11):1296-1302.
[8]CAOB Q,LORENZ M,RAHM A,et al.Phosphorus acceptor doped ZnO nanowires prepared by pulsed-laser deposition[J].Nanotechnology,2007,18(45):455707.https://doi.org/10.1088/0957-4484/18/45/455707.
[9]HUANG M H,WU Y,FEICK H,et al.Catalytic growth of Zinc oxide nanowires by vaportransport[J].Adv Mater,2001,13(2):113-116.
[10]LI Y,MENG G W,ZHANG L D,et al.Ordered semiconductor ZnO nanowire arrays and their photoluminescence properties[J].Appl Phys Lett,2000,76(15):2011-2013.
[11]LIU B,ZENG H C.Hydrothermal synthesis of ZnO nanorods in the diameter regime of 50nm[J].J Am Chem Soc,2003,125(15):4430-4431.
[12]杨詹,施媛媛,孙喜莲,等.化学浴沉积过程中的氧化锌微米棒与纳米棒研究[J].材料导报,2009,23(z2):93-96.YANG Z,SHI Y Y,SUN X Y,et al.Study on ZnO nanorods as well as mirorods formed in the chemical bath deposition combined with sol-gel processes[J].Mayerials Review,2009,23(z2):93-96.
[13]张春梅,姚凤兰,齐磊,等.聚乙烯亚胺对氧化锌纳米阵列形貌的影响[J].光谱学与光谱分析,2013,33(10):2762-2765.ZHANG C M,YAO F L,QI L,et al.Effect of polyethyleneimine on the morphology of ZnO nanorod arrays[J].Spectroscopy and Spectral Analysis,2013,33(10):2762-2765.
[14]李经忠,王青青,余海.新型非病毒载体聚乙烯亚胺介导基因转染参数的研究[J].中国生物医学工程学报,2006,25(4):481-487.LI J Z,WANG Q Q,YU H.Gene transfer by the new type nonviral vector polyethylenimine[J].Chinese Journal of Biomedical Engineering,2006,25(4):481-487.
[15]WU W B,HU G D,CUI S G et al.Epitaxy of vertical ZnO nanorod arrays on highly(001)-oriented ZnO seed monolayer by a hydrothermal route[J].Cryst Growth Des,2008,8(11):4014-4020.