Ultrafast Dynamics of Photoexcited Gold Nanostructures on Mica Substrates Probed by Transient Absorption Spectroscopy and Time-resolved X-ray Diffraction

被引：0

作者：

Sotome, Hikaru ^{[1
]}

Azuma, Yosuke ^{[1
]}

Asami, Sho ^{[1
]}

Matsushima, Shin-ichi ^{[1
]}

Kajimoto, Shinji ^{[1
]}

Fukumura, Hiroshi ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Aoba Ku, Sendai, Miyagi 9808578, Japan

来源：

CHEMISTRY LETTERS | 2015年 / 44卷 / 07期

关键词：

OPTICAL-PROPERTIES; ELECTRON DYNAMICS; SIZE DEPENDENCE; NANOPARTICLES; NANOCRYSTALS; RELAXATION; SHAPE;

D O I：

10.1246/cl.150232

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Gold nanostructures deposited on mica were excited with 400-nm sub-ps light pulses. Sub-ps transient absorption spectroscopy showed that excited hot electrons in the gold nanostructures decayed with a time constant of 13 ps through electron-phonon coupling in the nanostructures. Sub-ps time-resolved X-ray diffraction revealed that the (0010) mica lattice constant in a 1.7 mu m thick surface layer expanded with a time constant of 6 ps.

引用

页码：961 / 963

页数：3

共 22 条

[1] Effect of cobalt-59 self-decoupling on the solid-state 31P CP/MAS NMR spectra of cobaloximes [J].

Schurko, Robert W. ;

Wasylishen, Roderick E. ;

Nelson, John H. .

Journal of physical chemistry, 1996, 100 (20) :8053-8056

[2] Electron-phonon scattering in metal clusters -: art. no. 177401 [J].

Arbouet, A ;

Voisin, C ;

Christofilos, D ;

Langot, P ;

Del Fatti, N ;

Vallée, F ;

Lermé, J ;

Celep, G ;

Cottancin, E ;

Gaudry, M ;

Pellarin, M ;

Broyer, M ;

Maillard, M ;

Pileni, MP ;

Treguer, M .

PHYSICAL REVIEW LETTERS, 2003, 90 (17) :4

[3] Coherent atomic motions in a nanostructure studied by femtosecond x-ray diffraction [J].

Bargheer, M ;

Zhavoronkov, N ;

Gritsai, Y ;

Woo, JC ;

Kim, DS ;

Woerner, M ;

Elsaesser, T .

SCIENCE, 2004, 306 (5702) :1771-1773

[4] RELATIVISTIC BAND CALCULATION AND OPTICAL PROPERTIES OF GOLD [J].

CHRISTENSEN, NE ;

SERAPHIN, BO .

PHYSICAL REVIEW B-SOLID STATE, 1971, 4 (10) :3321-+

[5] OPTICAL PROPERTIES OF MICA IN VACUUM ULTRAVIOLET [J].

DAVIDSON, AT ;

VICKERS, AF .

JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS, 1972, 5 (08) :879-&

[6] Ultrafast plasmon-induced electron transfer from gold nanodots into TiO2 nanoparticles [J].

Furube, Akihiro ;

Du, Luchao ;

Hara, Kohjiro ;

Katoh, Ryuzi ;

Tachiya, Masanori .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (48) :14852-+

[7] FEMTOSECOND SPECTROSCOPY OF ELECTRON-ELECTRON AND ELECTRON-PHONON ENERGY RELAXATION IN AG AND AN [J].

GROENEVELD, RHM ;

SPRIK, R ;

LAGENDIJK, A .

PHYSICAL REVIEW B, 1995, 51 (17) :11433-11445

[8] Effects of ambient pressure on Cu Kα X-ray radiation with millijoule and high-repetition-rate femtosecond laser [J].

Hada, M. ;

Matsuo, J. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2010, 99 (1-2) :173-179

[9] Spectroscopy and dynamics of nanometer-sized noble metal particles [J].

Hodak, JH ;

Martini, I ;

Hartland, GV .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (36) :6958-6967

[10]

Ihee H, 2005, SCIENCE, V309, P1223, DOI 10.1126/scheme.1114782

← 1 2 3 →