Journal
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
Volume 30, Issue 5, Pages 1629-1633Publisher
SPRINGER
DOI: 10.1007/s10904-019-01304-y
Keywords
CdS-TiO2 nano-particle; Microstructure; Photo-luminescence property; Optical properties
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In the present work, we elaborated the CdS-TiO2 (CSTO) composite materials and considered their micro-structural and optical properties were investigated. The micro-structure and optical properties were examined by TEM, XRD, absorption and PL. The particles dimensions of composite have been varied from 18 to 22 nm while the typical crystalline size of TiO2 sample materials was varied involving the 9 nm and 14 nm. The direct band-gap of TiO2 nano-particles is 3.33 eV and E-g of CSTO sample is enlarged to 3.31 eV. The TEM show the existence of the CdS could efficiently hibit the agglomeration of the CSTO and progress the dispersion of particles. The photo-luminescence (PL) spectra illustrate that the CSTO sample has two tough emissions. These clarification results from the creation of the CSTO bond and the existence of CdS roughly anatase, which would impede the development of TiO2 powder. The internal micro-structure, thus obtained will make the permanence of our composite sample, allowing a development of optical features of TiO2 composite.
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