Publication detail

Optical and Optoelectrical Properties of Ternary Chalcogenide CuInS2/TiO2 Nanocomposite Prepared by Mechanochemical Synthesis

DUDKOVÁ, E. BALÁŽ, M. KOVÁČ, J. DANEU, N. KASHIMBETOVA, A. BRIANČIN, J. KOVÁČ. J. KOVÁČOVÁ, S. ČELKO, L.

Original Title

Optical and Optoelectrical Properties of Ternary Chalcogenide CuInS2/TiO2 Nanocomposite Prepared by Mechanochemical Synthesis

Type

journal article in Web of Science

Language

English

Original Abstract

In this work, a nanocomposite consisting of ternary chalcogenide CuInS2 and TiO2 was prepared and its optical and optoelectrical properties were investigated. The CuInS2/TiO2 nanocomposite was produced via one-step mechanochemical synthesis and characterized from the crystal structure, microstructural, morphology, surface, optical, and optoelectrical properties viewpoints. X-ray diffraction confirmed the presence of both components, CuInS2 and TiO2, in the nanocomposite and revealed a partial transformation of anatase to rutile. The presence of both components in the samples was also proven by Raman spectroscopy. HRTEM confirmed the nanocrystalline character of the samples as crystallites ranging from around 10 nm and up to a few tens of nanometers were found. The presence of the agglomerated nanoparticles into larger grains was proven by SEM. The measured optical properties of CuInS2, TiO2, and CuInS2/TiO2 nanocomposites demonstrate optical bandgaps of similar to 1.62 eV for CuInS2 and 3.26 eV for TiO2. The measurement of the optoelectrical properties showed that the presence of TiO2 in the CuInS2/TiO2 nanocomposite increased its conductivity and modified the photosensitivity depending on the ratio of the components. This study has demonstrated the possibility of preparing a CuInS2/TiO2 nanocomposite material with promising applications in optoelectronics in the visible region in an eco-friendly manner.

Keywords

CuInS2; TiO2; mechanochemistry; nanocomposite; optical properties; optoelectrical properties

Authors

DUDKOVÁ, E.; BALÁŽ, M.; KOVÁČ, J.; DANEU, N.; KASHIMBETOVA, A.; BRIANČIN, J.; KOVÁČ. J.; KOVÁČOVÁ, S.; ČELKO, L.

Released

30. 3. 2024

Publisher

MDPI

Location

BASEL

ISBN

2073-4352

Periodical

Crystals

Year of study

14

Number

4

State

Swiss Confederation

Pages count

15

URL

https://www.mdpi.com/2073-4352/14/4/324

BibTex

@article{BUT188620,
  author="DUDKOVÁ, E. and BALÁŽ, M. and KOVÁČ, J. and DANEU, N. and KASHIMBETOVA, A. and BRIANČIN, J. and KOVÁČ. J. and KOVÁČOVÁ, S. and ČELKO, L.",
  title="Optical and Optoelectrical Properties of Ternary Chalcogenide CuInS2/TiO2 Nanocomposite Prepared by Mechanochemical Synthesis",
  journal="Crystals",
  year="2024",
  volume="14",
  number="4",
  pages="15",
  doi="10.3390/cryst14040324",
  issn="2073-4352",
  url="https://www.mdpi.com/2073-4352/14/4/324"
}