Multiwalled Carbon Nanotubes Beaded with ZnO Nanoparticles for Ultrafast Nonlinear Optical Switching
✍ Scribed by Y. Zhu; H. I. Elim; Y.-L. Foo; T. Yu; Y. Liu; W. Ji; J.-Y. Lee; Z. Shen; A. T. S. Wee; J. T. L. Thong; C. H. Sow
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 544 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0935-9648
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✦ Synopsis
Nanoparticles-particles with sizes at the nanometer scale in all three dimensions-have attracted much attention because of their unique photonic, electronic, magnetic, and catalytic properties. [1] The assembly of isotropic nanoparticles onto one-dimensional (1D) architectures represents an important step towards the integration of nanoparticles into nanodevices. [2] In particular, nanoparticles of one material can be assembled on a 1D nanostructure of a different material to form unique and interesting hybrid nanomaterial systems. [3] Recently, carbon nanotubes (CNTs) have been used as templates or scaffolds for the hybrid assembly of nanoparticles. [4][5][6][7][8][9][10] Because of their great hardness and toughness, CNTs keep their morphology and structure even at high nanoparticle loadings. Using different methods, many types of metal and semiconductor nanoparticles, such as Au, [4] Ag, [5] Pt, [6] SnO 2 , [7] TiO 2 , [8] and CdSe, [9] have been assembled on CNTs. Recently, CNTs beaded with a variety of nanoparticles have been reported. [10][11][12][13][14][15] More importantly, some of these beaded CNT hybrid systems exhibit unique properties. For example,
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