Colloidal templating for producing hollow ZnO shells: Fabrication, growth and electrical properties

被引：7

作者：

Moon, Jaehyun ^{[1
]}

Park, Jin-Ah ^{[1
]}

Lee, Su-Jae ^{[1
]}

Zyung, Taehyoung ^{[1
]}

机构：

[1] Elect & Telecommun Res Inst, Convergence Components & Mat Res Lab, Taejon 305700, South Korea

来源：

THIN SOLID FILMS | 2009年 / 517卷 / 14期

关键词：

ZnO; Colloidal templating; Pulsed laser deposition; Radial distribution function; Electrical properties; Grain boundary; PULSED-LASER DEPOSITION; OXIDE THIN-FILMS; GRAIN-BOUNDARIES; ORIENTATION; PARTICLES; CRYSTALS; TEXTURE; ARRAYS; ORDER; MODEL;

D O I：

10.1016/j.tsf.2009.01.121

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Colloidal templating and pulsed laser deposition (PLD) have been combined to fabricate arrays of ordered two-dimensional hollow ZnO shells. Templates were formed by spin-coating colloidal solutions containing monodispersed polymethylmethacrylate (PMMA) beads. The optimum condition for forming templates of ordered two-dimensional geometry was deduced by calculating the radial distribution functions. On templates ZnO films were deposited by a PLD method. Upon annealing ZnO films crystallize into a wurtzite structure. The surface morphology of hollow ZnO shells consists of protruding columnar nano-crystallites with no distinct ZnO texture. The electrical properties were measured as a function of annealing temperature. The electrical conductivity increases with increase in annealing temperature. The activation energy was estimated to be 0.7 eV. The change in the electrical properties upon grain growth has been attributed to alteration in the fraction site availability for defect formation at the grain boundaries. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：3904 / 3907

页数：4

共 29 条

[1] Conduction model of metal oxide gas sensors [J].

Barsan, N ;

Weimar, U .

JOURNAL OF ELECTROCERAMICS, 2001, 7 (03) :143-167

[2] CO-ORDINATION OF RANDOMLY PACKED SPHERES [J].

BERNAL, JD ;

MASON, J .

NATURE, 1960, 188 (4754) :910-911

[3] Ordered meso- and macroporous binary and mixed metal oxides [J].

Carreon, MA ;

Guliants, VV .

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2005, (01) :27-43

[4] Effect of the substrate temperature on the properties of ZnO films grown by RF magnetron sputtering [J].

Chaabouni, F ;

Abaab, M ;

Rezig, B .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2004, 109 (1-3) :236-240

[5] Initial preferred growth in zinc oxide thin films on Si and amorphous substrates by a pulsed laser deposition [J].

Choi, JH ;

Tabata, H ;

Kawai, T .

JOURNAL OF CRYSTAL GROWTH, 2001, 226 (04) :493-500

[6] Microstructure control of ZnO thin films prepared by single source chemical vapor deposition [J].

Deng, H ;

Russell, JJ ;

Lamb, RN ;

Jiang, B ;

Li, Y ;

Zhou, XY .

THIN SOLID FILMS, 2004, 458 (1-2) :43-46

[7] Continuous convective assembling of fine particles into two-dimensional arrays on solid surfaces [J].

Dimitrov, AS ;

Nagayama, K .

LANGMUIR, 1996, 12 (05) :1303-1311

[8] C-AXIS ORIENTATION OF SPUTTERED ZNO FILMS [J].

DYBWAD, GL .

JOURNAL OF APPLIED PHYSICS, 1971, 42 (12) :5192-&

[9] CONTROL OF PREFERRED ORIENTATION FOR ZNOX FILMS - CONTROL OF SELF-TEXTURE [J].

FUJIMURA, N ;

NISHIHARA, T ;

GOTO, S ;

XU, JF ;

ITO, T .

JOURNAL OF CRYSTAL GROWTH, 1993, 130 (1-2) :269-279

[10] Fabrication and optical properties of two-dimensional ZnO hollow half-shell arrays [J].

Gao, Y. ;

Li, A. D. ;

Gu, Z. B. ;

Wang, Q. J. ;

Zhang, Y. ;

Wu, D. ;

Chen, Y. F. ;

Ming, N. B. ;

Ouyang, S. X. ;

Yu, T. .

APPLIED PHYSICS LETTERS, 2007, 91 (03)

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