Polycrystalline well-shaped blocks of indium oxide obtained by the sol-gel method and their gas-sensing properties

被引：121
作者：
Gurlo, A
Barsan, N
Weimar, U
Ivanovskaya, M
Taurino, A
Siciliano, P
机构：
[1] Univ Tubingen, Inst Phys & Theoret Chem, D-72076 Tubingen, Germany
[2] Belarusian State Univ, Sci Res Inst Phys & Chem Problems, Minsk 220050, BELARUS
[3] CNR, IMM, Ist Microelettron & Microsistemi, Sez Lecce, I-73100 Lecce, Italy
来源：
CHEMISTRY OF MATERIALS | 2003年 / 15卷 / 23期
关键词：
D O I：
10.1021/cm031114n
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Aging-induced aggregation of the nanoparticles in the colloidal solution of indium hydroxide leads to the formation of micrometer particles in the form of well-shaped blocks. As shown by high-resolution transmission electron microscopy and selected area electron diffraction, the well-shaped blocks have a polycrystalline nature composed of small nanounits. After calcination at 400 degreesC, they consist of cubic and hexagonal In2O3. Semiconducting sensors, composed of well-shaped blocks of cubic and hexagonal In2O3, show high sensitivity to low levels of ozone in the air.
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收藏
页码：4377 / 4383
页数：7
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