Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Advances in Materials Science

1 2024

Powiadomienia systemowe

Sesja wygasła!

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Zn1-xCoxO

Sortuj według:

Ogranicz wyniki do:

The characterization of Zn1-xCoxO thin films synthesized by ultrasonic spray deposition with controlled visible light absorption

Charef Azzeddine, Zitouni Karima, Benramache Said, Kadri Abderrahmane

Advances in Materials Science

2024

Vol. 24, nr 2(80)

61--69

This work examines the grown of Zn1-xCoxO films at different Co concentrations at 420°C by ultrasonic spray deposition. The effect of Co concentration of Zn1-xCoxO films on optical characterization, structure crystallinity and electrical conductivity was studied. Transmission spectra of Zn1-xCoxO films presented three edges in the visible region, it was observed in the range of 541 and 656 nm of wavelengths, which related to the d-d transitions of Co2+ ion with 3d7 high-spin configurations in a tetrahedral crystal field formed by neighboring O2−ions. The gap energy was found increases after doping by Co to maximum value of 3.373 eV at x=0.04. The Urbach energy minimum was 0.083eV, it is obtained for x=0.01. The sprayed Zn1-xCoxO films exhibit a wurtzite structure with preferred orientation in the (002) direction. The maximum crystallite size of Zn1-xCoxO films was 95.61 nm at x=0.06. The maximum electrical conductivity of the Co doped ZnO films was located at x=0.06.