Medium effect on the electron cooling dynamics in gold nanorods and truncated tetrahedra

被引：57

作者：

Link, S ^{[1
]}

Hathcock, DJ ^{[1
]}

Nikoobakht, B ^{[1
]}

El-Sayed, MA ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biochem, Laser Dynam Lab, Atlanta, GA 30332 USA

来源：

ADVANCED MATERIALS | 2003年 / 15卷 / 05期

关键词：

D O I：

10.1002/adma.200390088

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A study on the electron relaxation dynamics and thermal cooling of colloidal gold nanoparticles (see Figure) in air and water finds that the local energy exchange with the surrounding medium occurs on the picosecond time scale, comparable with the electron-phonon relaxation, while a slow heat dissipation by water ensures that the particles remain heated for hundreds of picoseconds.

引用

页码：393 / +

页数：5

共 25 条

[1] Some interesting properties of metals confined in time and nanometer space of different shapes [J].

El-Sayed, MA .

ACCOUNTS OF CHEMICAL RESEARCH, 2001, 34 (04) :257-264

[2]

Gans R, 1915, ANN PHYS-BERLIN, V47, P270

[3]

Halté V, 1999, APPL PHYS LETT, V75, P3799, DOI 10.1063/1.125460

[4] Remote electronic control of DNA hybridization through inductive coupling to an attached metal nanocrystal antenna [J].

Hamad-Schifferli, K ;

Schwartz, JJ ;

Santos, AT ;

Zhang, SG ;

Jacobson, JM .

NATURE, 2002, 415 (6868) :152-155

[5] Angle-resolved nanosphere lithography: Manipulation of nanoparticle size, shape, and interparticle spacing [J].

Haynes, CL ;

McFarland, AD ;

Smith, MT ;

Hulteen, JC ;

Van Duyne, RP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (08) :1898-1902

[6] Nanosphere lithography: A versatile nanofabrication tool for studies of size-dependent nanoparticle optics [J].

Haynes, CL ;

Van Duyne, RP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (24) :5599-5611

[7] Photophysics of nanometer sized metal particles: Electron-phonon coupling and coherent excitation of breathing vibrational modes [J].

Hodak, JH ;

Henglein, A ;

Hartland, GV .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (43) :9954-9965

[8] Heat dissipation for Au particles in aqueous solution: Relaxation time versus size [J].

Hu, M ;

Hartland, GV .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (28) :7029-7033

[9] Wet chemical synthesis of high aspect ratio cylindrical gold nanorods [J].

Jana, NR ;

Gearheart, L ;

Murphy, CJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (19) :4065-4067

[10] Nanosphere lithography: Surface plasmon resonance spectrum of a periodic array of silver nanoparticles by ultraviolet-visible extinction spectroscopy and electrodynamic modeling [J].

Jensen, TR ;

Schatz, GC ;

Van Duyne, RP .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (13) :2394-2401

← 1 2 3 →