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Structural and photoluminescence study of diamond-like layers grown by electrochemical method

J. SZATKOWSKI1, S. KULESZA1, A. KORCALA1, M. RĘBARZ1,* , M. WOJDYŁA1, G. TRYKOWSKI2, W. BAŁA3,1, F. ROZPŁOCH1

Affiliation

  1. Institute of Physics, N. Copernicus University, Grudziądzka 5/7, 87-110 Toruń, Poland
  2. Faculty of Chemistry, N. Copernicus University, Gagarina 7, 87-110 Toruń, Poland
  3. Department of Physics, Kazimierz Wielki University , Weyssenhoff Sq. 12, 85-072 Bydgoszcz, Poland

Abstract

In this paper we describe the growth, optical and morphological properties of diamond like carbon layers (DLC) obtained by electrochemical deposition in ethanol solution. The structural and morphological properties of diamond like carbon samples were characterized by Raman scattering as well as scanning electron (SEM) and atomic force (AFM) microscopy. The SEM and Raman measurements indicated that obtained diamond films exhibit coexistence of two phases: amorphous and polycrystalline. The photoluminescence (PL) spectra of obtained layers were investigated at the temperature range from 13 K to 325 K. Spectral analysis suggest that the multi-peaks structure of photoluminescence spectra at low temperatures arise from sp2 hybridized carbon clusters with different sizes.

Keywords

Diamond like carbon, Thin films, Photoluminescence, Raman spectra.

Citation

J. SZATKOWSKI, S. KULESZA, A. KORCALA, M. RĘBARZ, M. WOJDYŁA, G. TRYKOWSKI, W. BAŁA, F. ROZPŁOCH, Structural and photoluminescence study of diamond-like layers grown by electrochemical method, Optoelectronics and Advanced Materials - Rapid Communications, 2, 1, January 2008, pp.46-49 (2008).

Submitted at: Dec. 14, 2007

Accepted at: Jan. 16, 2008