The LMM Auger electron emission peaks of zinc are detected at 827, 900, 984, and 1,008 eV and the MVV at 53 eV . No further Auger electron emissions
related to the other elements are observed in this energy region. Figure 7 The Auger spectrum of the synthesized ZB20 nanoparticles. Conclusions ZnO and ZnO/BaCO3 nanoparticles were synthesized by the sol–gel method. XRD was used to study the crystallite sizes RG7112 in vivo and structures. The crystallite sizes of the prepared BaCO3 and ZnO nanoparticles were obtained to be 12 ± 2 and 21 ± 2 nm, respectively, for ZB20-NPs. The average particle size of the prepared ZB20-NPs was obtained to be 30 nm, which supports the XRD results. The optical properties of the prepared samples were studied using UV–Vis spectroscopy. The analyzed results showed that the resonance frequency of the refractive index and permittivity is redshifted by BaCO3 concentration increases. The bandgaps of the pure ZnO, ZB10, and ZB20 nanoparticles were estimated to be 3.3, 3.28, and 3.24, respectively. Acknowledgements A. Khorsand Zak thanks Universiti Teknologi Malaysia for the postdoctoral fellowship. This work was funded by Universiti Teknologi Malaysia. References 1. Buot FA: Mesoscopic physics and nanoelectronics: nanoscience and nanotechnology. Phys Rep 1993, 234:73–174.
10.1016/0370-1573(93)90097-WCrossRef 2. Huang S, Schlichthörl G, Nozik A, Grätzel M, Frank A: Charge recombination in dye-sensitized nanocrystalline TiO 2 solar cells. J Phys Chem B 1997, 101:2576–2582. 10.1021/jp962377qCrossRef Vistusertib ic50 3. Lu L, Li R, Fan K, Peng T: Effects of annealing conditions on the photoelectrochemical properties of dye-sensitized solar cells made with ZnO nanoparticles. Sol Energy 2010, 84:844–853. 10.1016/j.solener.2010.02.010CrossRef 4. Zhang H, Chen B, Jiang H, Wang C, Wang H, Wang X: A strategy for ZnO nanorod mediated Methane monooxygenase multi-mode cancer treatment. Biomaterials 2011, 32:1906–1914. 10.1016/j.biomaterials.2010.11.027CrossRef
5. Prepelita P, Medianu R, Sbarcea B, Garoi F, Filipescu M: The influence of using different substrates on the structural and optical characteristics of ZnO thin films. Appl Surf Sci 2010, 256:1807–1811. 10.1016/j.apsusc.2009.10.011CrossRef 6. Lee J-H: Gas sensors using hierarchical and hollow oxide nanostructures: overview. Sens learn more Actuators B 2009, 140:319–336. 10.1016/j.snb.2009.04.026CrossRef 7. Zak AK, Majid W, Darroudi M, Yousefi R: Synthesis and characterization of ZnO nanoparticles prepared in gelatin media. Mater Lett 2011, 65:70–73. 10.1016/j.matlet.2010.09.029CrossRef 8. Song R, Liu Y, He L: Synthesis and characterization of mercaptoacetic acid-modified ZnO nanoparticles. Solid State Sci 2008, 10:1563–1567. 10.1016/j.solidstatesciences.2008.02.006CrossRef 9. Zak AK, Abrishami ME, Majid W, Yousefi R, Hosseini S: Effects of annealing temperature on some structural and optical properties of ZnO nanoparticles prepared by a modified sol–gel combustion method.