On the Scattering and Absorption by the SiO2-VO2 Core-Shell Nanoparticles Under Different Thermal Conditions

被引：10

作者：

Baqir, M. A. ^{[1
]}

Choudhury, P. K. ^{[2
]}

Naqvi, Q. A. ^{[3
]}

Mughal, M. J. ^{[1
]}

机构：

[1] COMSATS Univ Islamabad, Dept Elect & Comp Engn, Sahiwal 57000, Pakistan

[2] Univ Kebangsaan Malaysia, Inst Microengn & Nanoelect, Ukm Bangi 43600, Malaysia

[3] Quaid I Azam Univ, Dept Elect, Islamabad 45320, Pakistan

来源：

IEEE ACCESS | 2020年 / 8卷

关键词：

Core-shell nanoparticle; scattering; polarizability;

D O I：

10.1109/ACCESS.2020.2992499

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The core-shell kinds of nanoparticles are greatly useful in biomedical applications inclined to targeted drug delivery, sensing, etc. The electromagnetic interaction characteristics of silicon dioxide (SiO2)-vanadium dioxide (VO2) core-shell nanoparticle of deep subwavelength size are discussed. The assumptions allow the use of Rayleigh scattering theory for analytical approach. Because of VO2 having inherent temperature-dependent constitutive characteristics, the light-matter interaction properties are taken into account in terms of normalized polarizability, scattering- and absorption cross-sections, considering the different values of size parameters as well as ambient temperature. It is found that the dimensional properties of chosen nanoparticles can be exploited to tune the spectral features, and also, the usefulness of these becomes obvious in temperature sensing. Moreover, the effect of interchanging the core/shell mediums (of the nanoparticles) on the scattering and absorption characteristics are also obtained. The results reveal the loss of resonance in this case.

引用

页码：84850 / 84857

页数：8

共 36 条

[11]

Dhas NL, 2018, PHARM NANOTECHNO, P387, DOI 10.1016/B978-0-12-813661-4.00009-2

[12] Frequency tunable near-infrared metamaterials based on VO2 phase transition [J].

Dicken, Matthew J. ;

Aydin, Koray ;

Pryce, Imogen M. ;

Sweatlock, Luke A. ;

Boyd, Elizabeth M. ;

Walavalkar, Sameer ;

Ma, James ;

Atwater, Harry A. .

OPTICS EXPRESS, 2009, 17 (20) :18330-18339

[13]

Ghasemi M., 2020, OPT MATER EXPRESS, V112

[14] A Review of Surface Plasmon Resonance-Enhanced Photocatalysis [J].

Hou, Wenbo ;

Cronin, Stephen B. .

ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (13) :1612-1619

[15]

Jahani S, 2016, NAT NANOTECHNOL, V11, P23, DOI [10.1038/nnano.2015.304, 10.1038/NNANO.2015.304]

[16] Calculated absorption and scattering properties of gold nanoparticles of different size, shape, and composition: Applications in biological imaging and biomedicine [J].

Jain, PK ;

Lee, KS ;

El-Sayed, IH ;

El-Sayed, MA .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (14) :7238-7248

[17] Thermally tunable optical constants of vanadium dioxide thin films measured by spectroscopic ellipsometry [J].

Kana, J. B. Kana ;

Ndjaka, J. M. ;

Vignaud, G. ;

Gibaud, A. ;

Maaza, M. .

OPTICS COMMUNICATIONS, 2011, 284 (03) :807-812

[18] High substrate temperature induced anomalous phase transition temperature shift in sputtered VO2 thin films [J].

Kana, J. B. Kana ;

Ndjaka, J. M. ;

Ngom, B. D. ;

Fasasi, A. Y. ;

Nemraoui, O. ;

Nemutudi, R. ;

Knoesen, D. ;

Maaza, M. .

OPTICAL MATERIALS, 2010, 32 (07) :739-742

[19] Hybrid core-shell scaffolds for bone tissue engineering [J].

Kareem, Muna M. ;

Hodgkinson, Tom ;

Sanchez, Manuel Salmeron ;

Dalby, Matthew J. ;

Tanner, K. Elizabeth .

BIOMEDICAL MATERIALS, 2019, 14 (02)

[20]

Koledov V. V., 2018, Journal of Physics: Conference Series, V1092, DOI 10.1088/1742-6596/1092/1/012108

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