Room-Temperature Ammonia Sensor Based on Cationic Surfactant-Assisted Nanocrystalline CuO

被引：126

作者：

Bedi, Ratish K. ^{[2
]}

Singh, Iqbal ^{[1
]}

机构：

[1] Khalsa Coll, PG Dept Phys, Amritsar 143005, Punjab, India

[2] Guru Nanak Dev Univ, Dept Phys, Mat Sci Lab, Amritsar 143005, Punjab, India

来源：

ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 05期

关键词：

nanoparticles; auto combustion; sensor; strain; semiconductor; STRONTIUM HEXAFERRITE NANOPOWDER; LARGE-SCALE SYNTHESIS; ELECTRICAL-PROPERTIES; COPPER-OXIDE; COMBUSTION; TRANSPARENT; POWDERS; SNO2;

D O I：

10.1021/am900914h

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

CuO nanocrystalline powder was synthesized by a sol-gel auto combustion route with different amounts of the cetyltrimethylammonium bromide (CTAB) used as cationic surfactant. The samples were characterized by XRD. FESEM, and TEM techniques. The electrical properties of the samples without and with different CTAB concentration and the response to ammonia gas at room temperature have been investigated. The CTAB appears to influence the morphology and the properties of CuO powder. The lattice constant values of the samples indicate monoclinic structure. TEM indicate the crystallite size around 7 nm for the CuO with 0.5M CTAB. The addition of surfactant results in an increase in the response of CuO thick films for ammonia at room temperature.

引用

页码：1361 / 1368

页数：8

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