Femtosecond transient absorption dynamics of close-packed gold nanocrystal monolayer arrays

被引：24
|
作者：
Eah, SK
Jaeger, HM
Scherer, NF
Lin, XM
Wiederrecht, GP
机构：
[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[2] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA
[3] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA
[4] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA
[5] Univ Chicago, Dept Chem, Chicago, IL 60637 USA
来源：
CHEMICAL PHYSICS LETTERS | 2004年 / 386卷 / 4-6期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/j.cplett.2004.01.056
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：
Femtosecond transient absorption spectroscopy is used to investigate hot electron dynamics of close-packed 6 mn gold nanocrystal monolayers. Morphology changes of the monolayer caused by the laser pump pulse are monitored by transmission electron microscopy. At low pump power, the monolayer maintains its structural integrity. Hot electrons induced by the pump pulse decay through electron-phonon (e-ph) coupling inside the nanocrystals with a decay constant that is similar to the value for bulk films. At high pump power, irreversible particle aggregation and sintering occur in the nanocrystal monolayer, which cause damping and peak shifting of the transient bleach signal. Published by Elsevier B.V..
引用
收藏
页码：390 / 395
页数：6
相关论文
共 50 条
  • [21] Heat Sinking and Crosstalk for Large, Close-Packed Arrays of Microcalorimeters
    N. Iyomoto
    S. R. Bandler
    R. P. Brekosky
    A.-D. Brown
    J. A. Chervenak
    E. Figueroa-Feliciano
    F. M. Finkbeiner
    R. L. Kelley
    C. A. Kilbourne
    F. S. Porter
    J. E. Sadleir
    S. J. Smith
    Journal of Low Temperature Physics, 2008, 151 : 506 - 512
  • [22] LATTICE-DYNAMICS OF HEXAGONAL CLOSE-PACKED METALS
    SINGH, SP
    KUSHWAHA, SS
    NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS, 1979, 54 (01): : 118 - 128
  • [23] A close-packed, highly insulating organic thin monolayer on Si(111)
    Tanaka, Kentaro
    Tanaka, Taishi
    Hasegawa, Takeshi
    Shionoya, Mitsuhiko
    CHEMISTRY LETTERS, 2008, 37 (04) : 440 - 441
  • [24] GROWTH OF CLOSE-PACKED (111) PLANE OF GOLD SINGLE CRYSTALS
    SCHWOEBEL, RL
    JOURNAL OF APPLIED PHYSICS, 1967, 38 (02) : 672 - +
  • [25] UV-blue photoluminescence from close-packed SiC nanocrystal film
    Fan, J. Y.
    Li, H. X.
    Wang, Q. J.
    Dai, D. J.
    Chu, P. K.
    APPLIED PHYSICS LETTERS, 2011, 98 (08)
  • [26] PHOTOACOUSTIC MEASUREMENT OF ABSORPTION IN AN ENSEMBLE OF CLOSE-PACKED ABSORBING SPHERES
    WALTHER, HG
    ANNALEN DER PHYSIK, 1987, 44 (04) : 305 - 312
  • [27] Reducing Screening Effect in Close-Packed Si Field Emitter Arrays
    Ghotbi, Shabnam
    Mohammadi, Saeed
    IEEE TRANSACTIONS ON ELECTRON DEVICES, 2023, 70 (08) : 4387 - 4393
  • [28] Patterned Close-Packed Nanoparticle Arrays with Controllable Dimensions and Precise Locations
    Liao, Jianhui
    Li, Xinxing
    Wang, Ying
    Zhang, Chaoying
    Sun, Jinling
    Duan, Chao
    Chen, Qing
    Peng, Lianmao
    SMALL, 2012, 8 (07) : 991 - 996
  • [29] Charged-particle detection efficiencies of close-packed CsI arrays
    Morfouace, P.
    Lynch, W. G.
    Tsang, M. B.
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017, 848 : 45 - 53
  • [30] Collective excitations in charged nanocrystals and in close-packed arrays of charged nanocrystals
    Delerue, C
    Allan, G
    Niquet, YM
    PHYSICAL REVIEW B, 2005, 72 (19)
12345