"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Mechanico-chemical interaction of single-walled carbon nanotubes with ZnO evidenced by photoluminescence and SERS spectroscopy

M. BAIBARAC1, I. BALTOG1,* , S. FRUNZA1, S. LEFRANT2, J. Y. MEVELLEC2, C. GODON2

Affiliation

  1. National Institute of Materials, Laboratory of Optics and Spectroscopy, P. O. Box MG-7, RO-77125, Bucharest, Romania
  2. Institut de Matériaux de Nantes, Laboratoire de Physique Cristalline, 2 Rue de la Houssiniere, B.P. 32229, 44322 Nantes, France

Abstract

Mechanico-chemical interactions of single-walled carbon nanotubes (SWNTs) with zinc oxide (ZnO) were investigated by surface-enhanced Raman scattering (SERS) and photoluminescence (PL). We show that SWNTs dispersed into a ZnO host matrix and compressed non-hydrostatically at 0.58 GPa forms a new organic/inorganic hybrid material. The typical PL emission of nanometric size ZnO particles changes gradually with the increase of the SWNTs concentration in the SWNTs/ZnO hybrid material. As a result of the mechanico-chemical interaction with SWNTs, the “green” band at 2.8 eV, attributed to oxygen vacancies of ZnO nanoparticles, decreases continuously until its complete disappearance..

Keywords

Carbon nanotubes, Zinc oxide, Raman spectroscopy, Photoluminescence.

Submitted at: Nov. 14, 2006
Accepted at: May 15, 2007

Citation

M. BAIBARAC, I. BALTOG, S. FRUNZA, S. LEFRANT, J. Y. MEVELLEC, C. GODON, Mechanico-chemical interaction of single-walled carbon nanotubes with ZnO evidenced by photoluminescence and SERS spectroscopy, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 5, pp. 1422-1425 (2007)