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Effect of substrate morphology on the nucleation and growth of ZnO nanorods prepared by spray pyrolysis

Identifieur interne : 001D66 ( Main/Repository ); précédent : 001D65; suivant : 001D67

Effect of substrate morphology on the nucleation and growth of ZnO nanorods prepared by spray pyrolysis

Auteurs : RBID : Pascal:12-0243436

Descripteurs français

Pascal (Inist)
- Morphologie, Nucléation, Mécanisme croissance, Synthèse nanomatériau, Pyrolyse, Nanobâtonnet, Nanomatériau, Microscopie force atomique, Microscopie électronique balayage, Nanocristal, Rapport aspect, Joint grain, Défaut cristallin, Attaque chimique, Oxyde de zinc, Oxyde d'indium, Oxyde d'étain, ZnO, Substrat InSnO, Substrat verre, Substrat ZnO, Substrat oxyde d'indium et de zinc, 6855A, 8116, 8107D, 8107.

English descriptors

KwdEn :
- Aspect ratio, Atomic force microscopy, Chemical etching, Crystal defects, Grain boundaries, Growth mechanism, Indium oxide, Morphology, Nanocrystal, Nanomaterial synthesis, Nanorod, Nanostructured materials, Nucleation, Pyrolysis, Scanning electron microscopy, Tin oxide, Zinc oxide.

Abstract

ZnO nanorods were prepared by a spray pyrolysis technique on both as-received and etched Indium Tin Oxide (ITO)/glass substrates. The morphologies of the ITO substrates, the ZnO nucleation mechanism and the development of ZnO nanorods on both types of ITO substrates were investigated by Atomic Force Microscopy and Scanning Electron Microscopy methods. It was found that the amount of nucleation sites on as-received ITO is significantly higher compared to that on the etched ITO. As a result, well-shaped, elongated, strongly c-axis-oriented ZnO nanorods were obtained on the etched ITO/glass substrates. In contrast, randomly oriented ZnO nanocrystals with different shapes and sizes, as well as low aspect ratios, were obtained on the as-received substrates. It was found that ZnO nucleation follows the grain-boundary nucleation mechanism.

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Pascal:12-0243436

Le document en format XML

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<author><name sortKey="Dedova, T" uniqKey="Dedova T">T. Dedova</name>
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<author><name sortKey="Acik, I Oja" uniqKey="Acik I">I. Oja Acik</name>
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<author><name sortKey="Krunks, M" uniqKey="Krunks M">M. Krunks</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Materials Science, Tallinn University of Technology, Ehitajate tee 5</s1>
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<author><name sortKey="Mikli, V" uniqKey="Mikli V">V. Mikli</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Centre for Materials Research, Tallinn University of Technology, Ehitajate tee 5</s1>
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<author><name sortKey="Volobujeva, O" uniqKey="Volobujeva O">O. Volobujeva</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Materials Science, Tallinn University of Technology, Ehitajate tee 5</s1>
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</author>
<author><name sortKey="Mere, A" uniqKey="Mere A">A. Mere</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Materials Science, Tallinn University of Technology, Ehitajate tee 5</s1>
<s2>19086 Tallinn</s2>
<s3>EST</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
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<country>Estonie</country>
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<publicationStmt><idno type="inist">12-0243436</idno>
<date when="2012">2012</date>
<idno type="stanalyst">PASCAL 12-0243436 INIST</idno>
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<seriesStmt><idno type="ISSN">0040-6090</idno>
<title level="j" type="abbreviated">Thin solid films</title>
<title level="j" type="main">Thin solid films</title>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aspect ratio</term>
<term>Atomic force microscopy</term>
<term>Chemical etching</term>
<term>Crystal defects</term>
<term>Grain boundaries</term>
<term>Growth mechanism</term>
<term>Indium oxide</term>
<term>Morphology</term>
<term>Nanocrystal</term>
<term>Nanomaterial synthesis</term>
<term>Nanorod</term>
<term>Nanostructured materials</term>
<term>Nucleation</term>
<term>Pyrolysis</term>
<term>Scanning electron microscopy</term>
<term>Tin oxide</term>
<term>Zinc oxide</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Morphologie</term>
<term>Nucléation</term>
<term>Mécanisme croissance</term>
<term>Synthèse nanomatériau</term>
<term>Pyrolyse</term>
<term>Nanobâtonnet</term>
<term>Nanomatériau</term>
<term>Microscopie force atomique</term>
<term>Microscopie électronique balayage</term>
<term>Nanocristal</term>
<term>Rapport aspect</term>
<term>Joint grain</term>
<term>Défaut cristallin</term>
<term>Attaque chimique</term>
<term>Oxyde de zinc</term>
<term>Oxyde d'indium</term>
<term>Oxyde d'étain</term>
<term>ZnO</term>
<term>Substrat InSnO</term>
<term>Substrat verre</term>
<term>Substrat ZnO</term>
<term>Substrat oxyde d'indium et de zinc</term>
<term>6855A</term>
<term>8116</term>
<term>8107D</term>
<term>8107</term>
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<front><div type="abstract" xml:lang="en">ZnO nanorods were prepared by a spray pyrolysis technique on both as-received and etched Indium Tin Oxide (ITO)/glass substrates. The morphologies of the ITO substrates, the ZnO nucleation mechanism and the development of ZnO nanorods on both types of ITO substrates were investigated by Atomic Force Microscopy and Scanning Electron Microscopy methods. It was found that the amount of nucleation sites on as-received ITO is significantly higher compared to that on the etched ITO. As a result, well-shaped, elongated, strongly c-axis-oriented ZnO nanorods were obtained on the etched ITO/glass substrates. In contrast, randomly oriented ZnO nanocrystals with different shapes and sizes, as well as low aspect ratios, were obtained on the as-received substrates. It was found that ZnO nucleation follows the grain-boundary nucleation mechanism.</div>
</front>
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<fA09 i1="01" i2="1" l="ENG"><s1>Proceedings of the EMRS 2011 Spring Meeting Symposium D: Processing and Characterization of Nanoscale Multi Functional Oxide Films III</s1>
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<fA11 i1="01" i2="1"><s1>DEDOVA (T.)</s1>
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<s9>ed.</s9>
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<s9>ed.</s9>
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<s9>ed.</s9>
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<fA14 i1="01"><s1>Department of Materials Science, Tallinn University of Technology, Ehitajate tee 5</s1>
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<sZ>2 aut.</sZ>
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<fA15 i1="01"><s1>University of Florida</s1>
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<fA15 i1="02"><s1>National Institute for Laser, Plasma and Radiation Physics</s1>
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<fA15 i1="04"><s1>University of Rennes 1</s1>
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<sZ>2 aut.</sZ>
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<fA15 i1="05"><s1>Max Planck Institute of Microstructure Physics</s1>
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<fA15 i1="06"><s1>Centre dInvestigacions en Nanociencia I Nanotecnologia (CIN2-CSIC)</s1>
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<fA15 i1="07"><s1>Università di Milano-Bicocca</s1>
<s2>Milano</s2>
<s3>ITA</s3>
<sZ>5 aut.</sZ>
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<fA18 i1="01" i2="1"><s1>European Materials Research Society (E-MRS)</s1>
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<s9>org-cong.</s9>
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<fA20><s1>4650-4653</s1>
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<s2>C</s2>
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<fC01 i1="01" l="ENG"><s0>ZnO nanorods were prepared by a spray pyrolysis technique on both as-received and etched Indium Tin Oxide (ITO)/glass substrates. The morphologies of the ITO substrates, the ZnO nucleation mechanism and the development of ZnO nanorods on both types of ITO substrates were investigated by Atomic Force Microscopy and Scanning Electron Microscopy methods. It was found that the amount of nucleation sites on as-received ITO is significantly higher compared to that on the etched ITO. As a result, well-shaped, elongated, strongly c-axis-oriented ZnO nanorods were obtained on the etched ITO/glass substrates. In contrast, randomly oriented ZnO nanocrystals with different shapes and sizes, as well as low aspect ratios, were obtained on the as-received substrates. It was found that ZnO nucleation follows the grain-boundary nucleation mechanism.</s0>
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<s5>10</s5>
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<s5>14</s5>
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<s5>14</s5>
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<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="ENG"><s0>Zinc oxide</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="SPA"><s0>Zinc óxido</s0>
<s5>15</s5>
</fC03>
<fC03 i1="16" i2="X" l="FRE"><s0>Oxyde d'indium</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="ENG"><s0>Indium oxide</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="SPA"><s0>Indio óxido</s0>
<s5>16</s5>
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<s5>17</s5>
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<s5>17</s5>
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<s4>INC</s4>
<s5>49</s5>
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<fC03 i1="22" i2="3" l="FRE"><s0>Substrat oxyde d'indium et de zinc</s0>
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<s5>50</s5>
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<s4>INC</s4>
<s5>71</s5>
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<s5>72</s5>
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<s4>INC</s4>
<s5>73</s5>
</fC03>
<fC03 i1="26" i2="3" l="FRE"><s0>8107</s0>
<s4>INC</s4>
<s5>74</s5>
</fC03>
<fN21><s1>184</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
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<pR><fA30 i1="01" i2="1" l="ENG"><s1>EMRS 2011 Spring Meeting. Symposium D: Processing and Characterization of Nanoscale Multi Functional Oxide Films III</s1>
<s3>Nice FRA</s3>
<s4>2011-05-09</s4>
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   |texte=   Effect of substrate morphology on the nucleation and growth of ZnO nanorods prepared by spray pyrolysis
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Effect of substrate morphology on the nucleation and growth of ZnO nanorods prepared by spray pyrolysis

Effect of substrate morphology on the nucleation and growth of ZnO nanorods prepared by spray pyrolysis

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