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In situ variable temperature X-ray diffraction studies on Fe doped CuGaO2 with applications in p-type dye sensitized solar cell

D. URSU1,2, M. MICLAU2, R. BANICA1,2, N. VASZILCSIN1,*

Affiliation

  1. Politehnica University Timisoara, Str. Piata Victoriei, nr.2, 300006 Timisoara, Romania
  2. National Institute for Research and Development in Electrochemistry and Condensed Matter, Str. Plautius Andronescu 1, 300224 Timisoara, Romania

Abstract

The aim of this study is to reveal the evolution and thermal stability of CuGa0.95Fe0.05O2 compound obtained by hydrothermal method, using in situ variable temperature chamber (HT-XRD), and thermogravimetric curve (TG). The two temperature domains corresponding to the thermal stability of CuGa0.95Fe0.05O2 (25 - 600°C) and to the destabilization of CuGa0.95Fe0.05O2 phase (600 - 1000°C) have been determined. The unit-cell volume decreases with the increase of the temperature up to 200°C, and then increases with the increase of the temperature up to 500°C. Quantitative phase and microstructure analysis obtained from X-ray diffraction patterns are correlated with the results of scanning electron microscopy, where the morphology changes due to the temperature increase are emphasized..

Keywords

CuGaO2, Dye sensitized solar cell, Hydrothermal method.

Submitted at: April 9, 2015
Accepted at: June 24, 2015

Citation

D. URSU, M. MICLAU, R. BANICA, N. VASZILCSIN, In situ variable temperature X-ray diffraction studies on Fe doped CuGaO2 with applications in p-type dye sensitized solar cell, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 7-8, pp. 938-942 (2015)