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Preparation and Photo-properties of Nanosize ZnS and Zn(en)_2S
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作者 LIGuo-qiang HEXiao-yun ZHONGHuai-zhen CHENZhen 《Semiconductor Photonics and Technology》 CAS 2004年第4期256-259,277,281,共6页
The precursore Zn(en)2S (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... The precursore Zn(en)2S (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 Zn2+ 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)2S 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)2S excited a fluorescence at 452 nm. 展开更多
关键词 Nano-material Solvothermal method zn(en)_(2)S znS
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