A study on the microstructure and gas sensing properties of ITO nanocrystals

G. Neri; A. Bonavita; G. Micali; G. Rizzo; N. Pinna; M. Niederberger; J. Ba

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A study on the microstructure and gas sensing properties of ITO nanocrystals

机译：ITO纳米晶体的微观结构和气敏特性的研究

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The effect of different SnO_2 loading (0-25 wt.%) on the microstructural, electrical and gas sensing properties of ITO (indium tin oxide) nanocrystals synthesized by a non-aqueous sol-gel technique was evaluated. TEM, HRTEM and XRD characterization has shown that all samples have a uniform grain morphology and narrow particle size distribution, while a remarkable size reduction was observed with the increase of tin loading in the mixed oxide formulation. Redox properties of the samples were also characterized by H_2-TPR. The gas sensing properties of ITO films towards CO (100-1000 ppm) and ethanol (50-400 ppm) have been investigated. On the basis of the characterization data, explanations of the observed sensing behaviour of ITO films are given.

机译：评估了不同的SnO_2负载量（0-25 wt。％）对通过非水溶胶-凝胶技术合成的ITO（铟锡氧化物）纳米晶体的微观结构，电学和气体传感性能的影响。 TEM，HRTEM和XRD表征表明，所有样品均具有均匀的晶粒形态和窄的粒径分布，而随着混合氧化物配方中锡含量的增加，观察到明显的尺寸减小。样品的氧化还原性质也通过H_2-TPR表征。研究了ITO膜对CO（100-1000 ppm）和乙醇（50-400 ppm）的气敏特性。根据表征数据，给出了观察到的ITO膜传感行为的解释。

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来源
《Thin Solid Films》 |2007年第24期|8637-8640|共4页
作者
G. Neri; A. Bonavita; G. Micali; G. Rizzo; N. Pinna; M. Niederberger; J. Ba;
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作者单位

Department of Industrial Chemistry and Materials Engineering, University of Messina, Italy;

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原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词
ITO; indium tin oxide; sol-gel routes; gas sensing;

机译：ITO;氧化铟锡溶胶-凝胶路线;气体感应;

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A study on the microstructure and gas sensing properties of ITO nanocrystals

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