Study of optical and dielectric properties of annealed ZnO nanoparticles in the terahertz regime

Please use this identifier to cite or link to this item: https://doi.org/10.1007/s11801-009-9217-1

Title:	Study of optical and dielectric properties of annealed ZnO nanoparticles in the terahertz regime
Authors:	Wang, M.-W. Woo, B.K. Tian, Z. Han, J.-G. Chen, W. Zhang, W.-L.
Issue Date:	2009
Citation:	Wang, M.-W., Woo, B.K., Tian, Z., Han, J.-G., Chen, W., Zhang, W.-L. (2009). Study of optical and dielectric properties of annealed ZnO nanoparticles in the terahertz regime. Optoelectronics Letters 5 (6) : 430-433. ScholarBank@NUS Repository. https://doi.org/10.1007/s11801-009-9217-1
Abstract:	The frequency-dependent optical and dielectric properties of annealed ZnO nanoparticles in the range of 0. 1 to 0. 9 THz are studied by using terahertz time-domain spectroscopy (THz-TDS). The refractive index, power absorption and complex dielectric constants are obtained and the experimental results are well fit with a simple effective medium theory in conjunction with a pseudo-harmonic model. This study reveals that annealed ZnO nanoparticles exhibit the similar phonon response characteristics to the single ZnO crystal and other ZnO nanostructures, such as tetrapods and nanowires. © 2009 Tianjin University of Technology and Springer Berlin Heidelberg.
Source Title:	Optoelectronics Letters
URI:	http://scholarbank.nus.edu.sg/handle/10635/98093
ISSN:	16731905
DOI:	10.1007/s11801-009-9217-1
Appears in Collections:	Staff Publications

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