Phonon confinement effect on nanocrystalline LiCoO2 studied with Raman spectroscopy

被引：11
|
作者：
Okubo, M. [1 ,2 ]
Hosono, E. [1 ]
Kudo, T. [1 ]
Zhou, H. S. [1 ]
Honma, I. [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3050012, Japan
[2] Chuo Univ, Fac Sci & Engn, Dept Appl Chem, Bunkyo Ku, Tokyo 1128551, Japan
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2008年 / 69卷 / 11期
关键词：
Ceramics; Raman spectroscopy; Phonons;
D O I：
10.1016/j.jpcs.2008.08.009
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A systematic investigation on nanocrystalline LiCoO2 has been carried Out using Raman spectroscopy. We synthesized nanocrystalline LiCoO2 (ca. 20-50 nm) through a combination of rapid thermal annealing at various annealing temperatures and a sol-gel method assisted with a triblock copolymer surfactant. Powder X-ray diffraction measurements revealed the formation Of LiCoO2. The crystallite size of LiCoO2 from the Scheffer equation strongly depended on the annealing temperature. The crystallite size was confirmed by SEM and TEM measurements. Raman shifts of the A(1g) and E-g modes for nanocrystalline LiCoO2 exhibited a broadening and a frequency shift according to the crystallite size. While the frequency Shift Could be ascribed to a Structural strain at the surface, the broadening was clue to the phonon confinement effect produced by narrow crystal boundaries. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2911 / 2915
页数：5
相关论文
共 50 条
  • [21] Raman scattering in boron doped nanocrystalline diamond films: Manifestation of Fano interference and phonon confinement effect
    Volodin, V. A.
    Mortet, V
    Taylor, A.
    Remes, Z.
    Stuchlikova, T. H.
    Stuchlik, J.
    SOLID STATE COMMUNICATIONS, 2018, 276 : 33 - 36
  • [22] Effect of pressure on the structural properties and Raman modes of LiCoO2 -: art. no. 224102
    Wang, X
    Loa, I
    Kunc, K
    Syassen, K
    Amboage, M
    PHYSICAL REVIEW B, 2005, 72 (22)
  • [23] Size effect on electrochemical property of nanocrystalline LiCoO2 synthesized from rapid thermal annealing method
    Okubo, M.
    Hosono, E.
    Kudo, T.
    Zhou, H. S.
    Honma, I.
    SOLID STATE IONICS, 2009, 180 (6-8) : 612 - 615
  • [24] Kinetic Investigation of LiCoO2 by Electrochemical Impedance Spectroscopy (EIS)
    Zhao, Jishi
    Wang, Li
    He, Xiangming
    Wan, Chunrong
    Jiang, Changyin
    INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2010, 5 (04): : 478 - 488
  • [25] Experimental assessment of the phonon confinement in TiO2 anatase nanocrystallites by Raman spectroscopy
    Georgescu, Dumitru
    Baia, Lucian
    Ersen, Ovidiu
    Baia, Monica
    Simon, Simion
    JOURNAL OF RAMAN SPECTROSCOPY, 2012, 43 (07) : 876 - 883
  • [26] Raman diagnostics of LiCoO2 electrodes for lithium-ion batteries
    Gross, Toni
    Hess, Christian
    JOURNAL OF POWER SOURCES, 2014, 256 : 220 - 225
  • [27] Spatially-resolved in situ Raman analysis of LiCoO2 electrodes
    Gross, Toni
    Hess, Christian
    CHARACTERIZATION OF INTERFACES AND INTERPHASES, 2014, 61 (12): : 1 - 9
  • [28] Ammonium carboxylates assisted combustion process for the synthesis of nanocrystalline LiCoO2 powders
    Vivekanandhan, S.
    Venkateswarlu, M.
    Satyanarayana, N.
    MATERIALS CHEMISTRY AND PHYSICS, 2008, 109 (2-3) : 241 - 248
  • [29] Glycerol Assisted Polymeric Precursor Route for the Synthesis of Nanocrystalline LiCoO2 Powders
    Vivekanandhan, S.
    Venkateswarlu, M.
    Satyanarayana, N.
    NSTI NANOTECH 2008, VOL 1, TECHNICAL PROCEEDINGS: MATERIALS, FABRICATION, PARTICLES, AND CHARACTERIZATION, 2008, : 744 - 747
  • [30] Influence of confinement on solvation of ethanol in water studied by Raman spectroscopy
    Ratajska-Gadomska, B.
    Gadomski, W.
    JOURNAL OF CHEMICAL PHYSICS, 2010, 133 (23):
12345