Preparation of poly(N-vinylpyrrolidone)-stabilized ZnO colloid nanoparticles

Tatyana Gutul; Emil Rusu; Nadejda Condur; Veaceslav Ursaki; Evgenii Goncearenco; Paulina Vlazan

doi:10.3762/bjnano.5.47

Preparation of poly(N-vinylpyrrolidone)-stabilized ZnO colloid nanoparticles

Beilstein J Nanotechnol. 2014 Apr 3:5:402-6. doi: 10.3762/bjnano.5.47. eCollection 2014.

Authors

Tatyana Gutul¹, Emil Rusu¹, Nadejda Condur¹, Veaceslav Ursaki¹, Evgenii Goncearenco², Paulina Vlazan³

Affiliations

¹ Institute of Electronic Engineering and Nanotechnologies D. Ghitu, Academy of Sciences of Moldova, 3 Academiei str., Chisinau, MD-2028, Moldova.
² State University of Republic of Moldova, 60 Alexe Mateevici str., Chisinau MD-2009, Moldova.
³ National Institute of Electrochemistry and Condensed Matter, 144 Dr. A. Paunescu Podeanu str., Timisoara 300569, Romania.

Abstract

We propose a method for the synthesis of a colloidal ZnO solution with poly(N-vinylpyrrolidone) (PVP) as stabilizer. Stable colloidal solutions with good luminescence properties are obtained by using PVP as stabilizer in the synthesis of ZnO nanoparticles by a sol-gel method assisted by ultrasound. Nanoparticles with sizes of 30-40 nm in a PVP matrix are produced as a solid product. The colloidal ZnO/PVP/methanol solution, apart from the most intense PL band at 356 nm coming from the PVP, exhibits a strong PL band at 376 nm (3.30 eV) which corresponds to the emission of the free exciton recombination in ZnO nanoparticles.

Keywords: colloidal solutions; nanocomposite; poly(N-vinylpyrrolidone); sol–gel; zinc oxide.