Synthesis of silver nanodiscs and triangular nanoplates in pvp matrix: Photophysical study and simulation of UV-vis extinction spectra using DDA method

被引：26

作者：

Samanta, Sadhan ^{[1
]}

Sarkar, Priyanka ^{[1
]}

Pyne, Santanu ^{[1
]}

Sahoo, Gobinda Prasad ^{[1
]}

Misra, Ajay ^{[1
]}

机构：

[1] Vidyasagar Univ, Dept Chem & Chem Technol, Midnapore 721102, W Bengal, India

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2012年 / 165卷

关键词：

Silver nanoparticles; Surface plasmon resonance (SPR); Polyvinyl pyrrolidone (PVP); DDA; DISCRETE-DIPOLE APPROXIMATION; PLASMON RESONANCE SPECTROSCOPY; NONLINEAR-OPTICAL-PROPERTIES; ELECTROMAGNETIC SCATTERING; NANOSPHERE LITHOGRAPHY; METAL NANOPARTICLES; GOLD; SIZE; SEMICONDUCTOR; SUPERLATTICES;

D O I：

10.1016/j.molliq.2011.10.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Circular nanodiscs and truncated triangular shaped silver nanoplates have been synthesized through a seeding growth approach in polyvinyl pyrrolidone (PVP) matrix at room temperature. Seeds are prepared on reduction of silver nitrate (AgNO3) by sodium borohydride (NaBH4) and methyl cellulose (MC) is being used as encapsulating matrix. Colored silver sols are obtained as variable amounts of seeds are added to the growth solution containing silver nitrate, polyvinyl pyrrolidone (PVP) and ascorbic acid. Silver nanostructures are characterized using UV-vis spectroscopic and transmission electron microscopic (TEM) study. TEM studies reveal that particles are mostly circular disc and truncated triangular plate like as different amount of seeds are used in the growth solution. Simulation of UV-vis extinction spectra using discrete dipole approximation (DDA) method nicely explains the observed localized surface Plasmon resonance (LSPR) band of spherical and circular disc like silver nanoparticle. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：21 / 26

页数：6

共 53 条

[1] Optical properties of coupled metallic nanorods for field-enhanced spectroscopy [J].

Aizpurua, J ;

Bryant, GW ;

Richter, LJ ;

de Abajo, FJG ;

Kelley, BK ;

Mallouk, T .

PHYSICAL REVIEW B, 2005, 71 (23)

[2] Synthesis and antibacterial properties of silver nanoparticles [J].

Baker, C ;

Pradhan, A ;

Pakstis, L ;

Pochan, DJ ;

Shah, SI .

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2005, 5 (02) :244-249

[3] Green synthesis of silver nanoparticles using latex of Jatropha curcas [J].

Bar, Harekrishna ;

Bhui, Dipak Kr. ;

Sahoo, Gobinda R. ;

Sarkar, Priyanka ;

De, Sankar R. ;

Misra, Ajay .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2009, 339 (1-3) :134-139

[4]

Bohren C.F, 2008, Absorption and Scattering of Light by Small Particles

[5] Silver nanodisks: Optical properties study using the discrete dipole approximation method [J].

Brioude, A ;

Pileni, MP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (49) :23371-23377

[6] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology [J].

Daniel, MC ;

Astruc, D .

CHEMICAL REVIEWS, 2004, 104 (01) :293-346

[7] Stable transition metal complexes of an all-metal antiaromatic molecule (Al4Li4):: Role of complexations [J].

Datta, A ;

Pati, SK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (10) :3496-3500

[8] Charge-transfer induced large nonlinear optical properties of small Al clusters:: Al4M4 (M = Li, Na, and K) [J].

Datta, A ;

Pati, SK .

JOURNAL OF PHYSICAL CHEMISTRY A, 2004, 108 (44) :9527-9530

[9] BEYOND CLAUSIUS-MOSSOTTI - WAVE-PROPAGATION ON A POLARIZABLE POINT LATTICE AND THE DISCRETE DIPOLE APPROXIMATION [J].

DRAINE, BT ;

GOODMAN, J .

ASTROPHYSICAL JOURNAL, 1993, 405 (02) :685-697

[10] DISCRETE-DIPOLE APPROXIMATION FOR SCATTERING CALCULATIONS [J].

DRAINE, BT ;

FLATAU, PJ .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1994, 11 (04) :1491-1499

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