奈米結構氧化鋅的成長與氣體感測、發光二極體之應用

李宜靜

doi:10.6843/NTHU.2010.00660

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奈米結構氧化鋅的成長與氣體感測、發光二極體之應用

Synthesis of ZnO Based Nanostructures and Applications in Gas Sensors and Light Emitting Diodes

李宜靜 , Ph.D　　Advisor：陳力俊　　

英文 DOI： 10.6843/NTHU.2010.00660

氧化鋅；奈米結構；氣體感測；鐵磁性；鈷；發光二極體； ZnO ； sensor ； low-temperature ； LED ； Co ； hexagonal

Abstract │ Reference (172) │ Altmetrics

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Synthesis and applications of ZnO nanostructure have been investigated. Based on the environmental concern and energy issue, ZnO-based nanostructures, fabricated by low-cost, large-scale aqueous method, have been applied to ethanol and CO gas sensing as well as light emitting diodes (LEDs). With applied voltage to aqueous solution, the impurity Co atoms have been effective to be doped into ZnO lattice. The cathodoluminescence (CL) peaks of different concentrations of Co-doped ZnO nanostructures are discussed. Meanwhile, high temperature ferromagnetism was observed in both 0.25% and 1% Co-doped ZnO nanostructures at 350 K.
Efforts have been made to the synthesis of ZnO-based nanostructures, understanding of its physical properties, and integration into potential devices in the research.
The thesis covers synthesis of ZnO-based nanostructures and its potential applications as fellow: (1) ZnO/ZnGa2O4 core-shell heterogeneous structure and ZnGa2O4 nanotubes, (2) unique hexagonal ring-like superstructures (HRLSs) based on the oriented attachment of single-crystalline Co-doped ZnO nanorods of hexagonal shape, (3) ZnO-based sensors applied to ethanol and CO sensing, (4) inorganic/organic heterostructure light emitting diodes consisting of ZnO-based nanorod and p-type polymer (PSS-PEDOT).

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Chapter 1
連結：
1.1 Zhong Lin Wang, Z. C. Kang, Functional and Smart Material, Plenum, New York 1998.
連結：
1.3 P. X. Gao, Z. L. Wang, “Nanopropeller arrays of zinc oxide,” Appl. Phys. Lett. 2004, 84, 2883-2885.
連結：
1.4 R. C. Wang, C. P. Liu, J. L. Huang, S. J. Chen, Y. K. Tseng, S. C. Kung, “ZnO nanopencils: efficient field emitters,” Appl. Phys. Lett. 2005, 87, 013110.
連結：
1.5 Y. C. Chang, L. J. Chen, “ZnO nanoneedles with enhanced and sharp ultraviolet cathodoluminescence peak,” J. Phys. Chem. C 2007, 111, 1268-1272.
連結：

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