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Chemcial Industry and Engineering 2016, Vol. 33 Issue (1) :61-65    DOI: 10.13353/j.issn.1004.9533.20141036
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Synthesis and Optical Properties of Silver Sulfide Nanorice
Liu Jingjing, Li Xiaoli, Wang Hong
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract 

Silver sulfide (Ag2S) nanorice with an average length of about 35 nm has been synthesized at room temperature just in 0.5 h using silver laurate and sodium sulfide as raw materials, polyvinylpyrrolidone as protective agent in aqueous solution. It was found that the formation of the rice-shape featured Ag2S nanoparticles depended mainly on the presence of polyvinylpyrrolidone and sodium sulfide. What's more, if the concentrations of sodium sulfide were increased, the time for the formation of the rice-shape featured would be shortened. Compared with bulk silver sulfide, the obtained Ag2S nanorice showed clear quantum confinement effect, which was testified by the remarkable blue shift of its UV-visible absorption edge and the large band gap energy of 4.4 eV.

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Articles by authors
Liu Jingjing
Li Xiaoli
Wang Hong
Keywordssemiconductor materials;   silver sulfide nanoparticles;   nanorice;   optical properties     
Received 2014-03-16;
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Liu Jingjing, Li Xiaoli, Wang Hong.Synthesis and Optical Properties of Silver Sulfide Nanorice[J]  Chemcial Industry and Engineering, 2016,V33(1): 61-65
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