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The precursore Zn(en)_(2)S (en=ethylenediamine) were prepared via a solvothermal process from_( )elemental sulfur and zinc using ethylenediamine as a solvent. Detailed characterizations of the infrared (IR) absorption spectrum, powder X-ray diffraction (XRD) and thermogravimetric analysis (TG) confirmed two en coordinated with Zn~(2+) to form a complex cation. The morphological property was also characterized by transmission electron microscopy (TEM ) and electron diffraction analysis (ED). Phase-pure hexagonal wurtzite ZnS products were obtained by annealing the precursor in nitrogen stream at about 900 ℃. Zn(en)_(2)S showed a nanosize of about 30 nm, and ZnS of about 60 nm. The fluorescence spectra were also studied. PL results showed that Zn(en)_(2)S excited a fluorescence at 452 nm.
The precursore Zn (en) _ (2) S (en = ethylenediamine) were prepared via a solvothermal process from - () elemental sulfur and zinc using ethylenediamine as a solvent. Detailed characterizations of the infrared (IR) absorption spectrum, powder X-ray diffraction (XRD) and thermogravimetric analysis (TG) confirmed two en coordinated with Zn ~ (2+) to form a complex cation. The morphological property was also characterized by transmission electron microscopy (TEM) and electron diffraction analysis Pure hexagonal wurtzite ZnS products were obtained by annealing the precursor in nitrogen stream at about 900 ° C. Zn (en) _ (2) S showed a nanosize of about 30 nm, and ZnS of about 60 nm. The fluorescence spectra were also studied. PL results showed that Zn (en) _ (2) S excited a fluorescence at 452 nm.