Журнал нано- та електронної фізики (Journal of nano- and electronic physics)

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Synthesis and Optical Absorption Properties of Copper Oxide Nanoparticles for Applications in Transparent Surface Coatings and Solar Cells
(Sumy State University, 2017) Samanta, P.K.; Das, M.; Hati, R.; Patra, M.; Khatun, A.; Patra, S.; Jana, S.; Kar, B.S.; Mandal, S.; Mandal, A.K.; Aich, D.; Saha, S.; Kamilya, T.; Mishra, S.
A simple wet chemical method has been successfully deployed to synthesize CuO nanoparticles (NPs) by using copper chloride and lithium hydroxide as the precursors. X-ray diffraction study revealed that the synthesized CuO is highly crystalline and pure. The synthesized CuO NPs has very high transparency in the visible region of wavelength. The band gap of the CuO NPs was found to be 1.54 eV.
Chemical synthesis and optical properties of ZnO nanoparticles
(Sumy State University, 2014) Samanta, P.K.; Saha, A.; Kamilya, T.
We report here a simple wet chemical process to synthesize ZnO nanoparticles. The morphology of the nanoparticles was observed in field emission scanning electron microscope. The nanoparticles have average diameter ~ 100 nm. The optical property of the synthesized ZnO nanoparticles was investigated using UVvisible absorption spectra. The synthesized nanoparticles exhibit strong absorption at ~ 279 nm. The band gap of the nanoparticles was calculated from the absorption spectrum and found to be 3.76 eV. Thus the synthesized ZnO nanoparticles will be useful in various optoelectronic applications.