Communication: Three-dimensional model for phonon confinement in small particles: Quantitative bandshape analysis of size-dependent Raman spectra of nanodiamonds | Zendy

Vitaly I. Korepanov | Zendy; Henryk A. Witek | Zendy; Hajime Okajima | Zendy; Eiji Ōsawa | Zendy; Hiroo Hamaguchi | Zendy

Open Access

Communication: Three-dimensional model for phonon confinement in small particles: Quantitative bandshape analysis of size-dependent Raman spectra of nanodiamonds

Author(s) -

Vitaly I. Korepanov,

Henryk A. Witek,

Hajime Okajima,

Eiji Ōsawa,

Hiroo Hamaguchi

Publication year - 2014

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.4864120

Subject(s) - raman spectroscopy , phonon , materials science , dispersion (optics) , diamond , condensed matter physics , molecular physics , spectral line , range (aeronautics) , nanotechnology , optics , physics , quantum mechanics , composite material

Raman spectroscopy of nano-scale materials is facing a challenge of developing a physically sound quantitative approach for the phonon confinement effect, which profoundly affects the phonon Raman band shapes of small particles. We have developed a new approach based on 3-dimensional phonon dispersion functions. It analyzes the Raman band shapes quantitatively in terms of the particle size distributions. To test the model, we have successfully obtained good fits of the observed phonon Raman spectra of diamond nanoparticles in the size range from 1 to 100 nm.

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