Influence of Metal Nanoparticles on the Structural and Optical Properties of the MnO2 Thin Film

This work aims to concisely overview the relationship between metal nanoparticles and MnO2 thin films. The electron beam evaporation technique deposited MnO2 Thin Film (TF) decorated with titanium (Ti), Gold (Au), and silver (Ag) nanoparticles (NP). The study involved the analysis of the structural and optical properties of a MnO2 thin film decorated with nanoparticles (Au, Ag, Ti). XRD reveals that the MnO2 TF and the metal nanoparticles are crystalline. The AFM analysis of TiNP/MnO2 TF, AgNP/MnO
2
TF, and Au NP/MnO
2
TFwith a value of 0.19 nm, 0.18 nm, and 0.17 nm, respectively Reflectance measurement unveils the Au NP/MnO
2
TF, Ag NPI MnO
2
TF, and Ti NP/MnO
2
TF bandgap, which are 3.64 eV, 3.37 eV, and 3.12 eV at 340 nrn, 367 nm, and 397 nm. PL emission shows that Au NP/MnO
2
TF has more emission than Ag NP/MnO
2
TF and Ti NP/MnO
2
TF.