Synthesis of ZnO nanorods and their optical absorption in visible-light region

Simple fabrication and photocatalytic activity of ZnO particles with different morphologies

“…The band at 2359 cm − 1 is correlated to carbon dioxide [40]. The strong absorption peaks in the range of 520 to 419 cm − 1 are the typical IR absorption peak of ZnO [41]. As the particle size of the samples decreases, the characteristic band of ZnO red shifts gradually, and the absorption intensity are enhanced compared with the flower-like ZnO.…”

Microwave Assisted Synthesis of ZnO Nanoparticles: Effect of Precursor Reagents, Temperature, Irradiation Time, and Additives on Nano-ZnO Morphology Development

“…On the other hand, FTIR studies ( Figure 1) show the characteristic vibrations of ZnO in the product obtained at 140 ∘ C. In all the cases the FTIR spectrums show absorption bands centered at about 3430 and 2344 cm −1 , which can be assigned to the O-H stretching vibrations, and bands centered at 1630 and 1384 cm −1 that correspond to the asymmetric and symmetric C=O stretching modes (CO 2 modes). At low wavenumbers there can be observed two peaks located at approximately 420 and 512 cm −1 , corresponding to the ZnO rod like-nanostructures [20,21].…”

Synthesis and Characterization of Screen Printed Zn0.97Cu0.03O Thick Film for Semiconductor Device Applications

“…Infrared (IR) spectroscopic studies provide useful information about the structure of the compound. IR peak positions as well as their intensities are influenced by the particle size, surface morphology and agglomeration of particles [20]. IR transmittance spectrum of Zn 0.97 Cu 0.03 O thick film was recorded in the range of 4000-600 cm −1 as presented in Figure 3.…”