Carbon Nanotube-ZnO Nanosphere Heterostructures: Low-Temperature Chemical Reaction Synthesis, Photoluminescence, and Their Application for Room Temperature NH3 Gas Sensor

被引：46

作者：

Zhang, Hui

Du, Ning

Chen, Bingdi

Li, Dongshen

Yang, Deren ^{[1
]}

机构：

[1] State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

来源：

SCIENCE OF ADVANCED MATERIALS | 2009年 / 1卷 / 01期

关键词：

CNT-ZnO Nanosphere Heterostructures; Low-Temperature Chemical Reaction; Photoluminescence; Gas Sensor; NANOWIRES; NANOCOMPOSITES; NANOPARTICLES; NANORODS; GROWTH; GOLD;

D O I：

10.1166/sam.2009.1002

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A simple approach was developed to synthesize carbon nanotube (CNT)-ZnO nanosphere heterostructures by chemical reaction of zinc chloride and triethanolamine at 90 degrees C using CNT as a matrix. The morphology and structure of the CNT-ZnO nanosphere heterostructures were characterized by transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HRTEM). The photoluminescence (PL) analysis of the CNT-ZnO nanosphere heterostructures exhibited a relatively decreased and broadened emission at 390 nm due to the charge transfer from ZnO nanospheres to CNT. Moreover, the CNT-ZnO nanosphere heterostructures were applied as ammonia gas sensors at room temperature, which exhibited promising performance due to their high surface-volume ratios and good conductivity of CNTs.

引用

页码：13 / 17

页数：5

共 42 条

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