Propeller-like multicomponent microstructures:: Self-assemblies of nanoparticles of poly(vinyl alcohol)-coated Ag and/or Cu2O

被引：36
作者：
Wu, Wei-Tai [1 ]
Wang, Yusong [1 ]
Shi, Lei [1 ]
Pang, Wenmin [1 ]
Zhu, Qingren [1 ]
Xu, Guoyong [1 ]
Lu, Fei [1 ]
机构：
[1] Univ Sci & Technol China, Chinese Acad Sci, Hefei Natl Lab Phys Sci, Microscale Struct Res Lab, Anhua 230026, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2006年 / 110卷 / 30期
关键词：
D O I：
10.1021/jp062121c
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：
Novel propeller-like multicomponent microstructures, which are actually self-assemblies of nanoparticles of poly(vinyl alcohol) (PVA)-coated Ag and/or Cu2O, were synthesized in aqueous solution of amphiphilic polyvinylacetone (PVKA) (ketalization degree D-H = 0.549), via one-step in situ reduction of Ag+ and Cu2+ under gamma-ray irradiation, utilizing the low hydrolysis rate of PVKA in the dilute acidic solution. Herein, PVA chains are obtained from hydrolyzed PVKA. The reaction mechanism and the formation mechanism are proposed. The room temperature photoluminescence spectrum has also been applied to explore the optical property.
引用
收藏
页码：14702 / 14708
页数：7
相关论文
共 40 条
  • [1] The use of nanocrystals in biological detection
    Alivisatos, P
    [J]. NATURE BIOTECHNOLOGY, 2004, 22 (01) : 47 - 52
  • [2] PHOTOLUMINESCENCE OF NOBLE-METALS
    APELL, P
    MONREAL, R
    LUNDQVIST, S
    [J]. PHYSICA SCRIPTA, 1988, 38 (02) : 174 - 179
  • [3] Synthesis and properties of Cu2O quantum particles
    Borgohain, K
    Murase, N
    Mahamuni, S
    [J]. JOURNAL OF APPLIED PHYSICS, 2002, 92 (03) : 1292 - 1297
  • [4] Higher-order organization by mesoscale self-assembly and transformation of hybrid nanostructures
    Cölfen, H
    Mann, S
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (21) : 2350 - 2365
  • [5] 2-DIMENSIONAL CRYSTALLIZATION
    DENKOV, ND
    VELEV, OD
    KRALCHEVSKY, PA
    IVANOV, IB
    YOSHIMURA, H
    NAGAYAMA, K
    [J]. NATURE, 1993, 361 (6407) : 26 - 26
  • [6] X-RAY PHOTOELECTRON-SPECTROSCOPY ANALYSIS OF COPPER AND ZINC-OXIDES AND SULFIDES
    DEROUBAIX, G
    MARCUS, P
    [J]. SURFACE AND INTERFACE ANALYSIS, 1992, 18 (01) : 39 - 46
  • [7] Synthesis and optical properties of silver nanoparticles and arrays
    Evanoff, DD
    Chumanov, G
    [J]. CHEMPHYSCHEM, 2005, 6 (07) : 1221 - 1231
  • [8] Fluorescence and excitation spectra of Ag4 in an argon matrix
    Félix, C
    Sieber, C
    Harbich, W
    Buttet, J
    Rabin, I
    Schulze, W
    Ertl, G
    [J]. CHEMICAL PHYSICS LETTERS, 1999, 313 (1-2) : 105 - 109
  • [9] Photogeneration of silver particles in PVA fibers and films
    Gaddy, GA
    McLain, JL
    Steigerwalt, ES
    Broughton, R
    Slaten, BL
    Mills, G
    [J]. JOURNAL OF CLUSTER SCIENCE, 2001, 12 (03) : 457 - 471
  • [10] Photoluminescence phenomenon during the formation of silver nanoparticles
    He, P
    Shen, XH
    Gao, HC
    [J]. ACTA PHYSICO-CHIMICA SINICA, 2004, 20 (10) : 1200 - 1203
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