Effect of Mn doping on structural and optical properties of Zn1-xMnxO thin films.

We report structural and optical properties of single phase Zn1-xMnxO (0 < x < 0.05) thin films synthesized by sol-gel technique. Lattice parameter and unit cell volume of Zn1-xMnxO films increases but grain size decreases with increasing Mn concentration. Observed red shift in band gap values with increasing Mn concentration have been analyzed in the light of modification of electronic structure and disorder introduced in the system with doping. [ABSTRACT FROM AUTHOR]