Effect of Molarity and Annealing Time on Urbach Energy for CoxZn1-xO Thin Films Prepared by spray Pyrolysis method | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 18, Issue 4, December 2013, Pages 197-204 | ||
| Author | ||
| Ayed N. Saleh | ||
| Abstract | ||
| ZnO thin films have been deposited onto glass substrates by the spray Pyrolysis method. Different concentrations of Zinc nitrite (0.1-0.5 mol/L) was used. These films doped with different x ratio (x=0-0.1) and annealed at 400Co for annealing time about (0.5-2.5 h).Urbach energies have been calculated by optical properties.It has been found that Urbach energy for pure films is nearly (83-160 meV) while the maximum value of Co0.1Zn0.9O thin film is 357 meV.It has also been found that energy gap is in inverse proportion with urbach energy. | ||
| Keywords | ||
| ZnO; Spray Pyrolysis; Urbach energy | ||
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