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Role of chelating agent in chemical and fluorescent properties of SnO_2 nanoparticles

贺少勃  王仕发  丁庆平  袁晓东  郑万国  向霞  李志杰  祖小涛  
【摘要】:A modified polyacrylamide gel route is applied to synthesize SnO2 nanoparticles. High-quality SnO2 nanoparticles with a uniform size are prepared using different chelating agents. The average particle size of the samples is found to depend on the choice of the chelating agent. The photoluminescence spectrum detected at λex = 230 nm shows a new peak located at 740 nm due to the surface defect level distributed at the nanoparticle boundaries.

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