| 棒束花状α-Fe_2O_3的制备及其气敏特性 |
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| 引用本文： | 马健,寇雪莹,丁梦迪,张红,孙彦峰.棒束花状α-Fe_2O_3的制备及其气敏特性[J].吉林大学学报(理学版),2016,54(1):116-120. |
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| 作者姓名： | 马健 寇雪莹 丁梦迪 张红 孙彦峰 |
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| 作者单位： | 吉林大学 电子科学与工程学院, 集成光电子国家重点实验室, 长春 130012 |
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| 摘 要： | 以FeCl_3·6H_2O为前驱体,聚乙烯基吡咯烷酮(PVP,分子量为8 000)为表面活性剂,先通过水热反应,再经高温煅烧制备具有棒束花状多级结构的α-Fe_2O_3,并用场发射扫描电子显微镜(FESEM)和透射电子显微镜(TEM)表征样品结构.结果表明:样品结构由棒束以自组装的方式形成,每个棒束由多个单晶纳米棒构成;由该结构制成的传感器件在200℃对丙酮具有良好的选择性及较高的灵敏度.
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| 关 键 词： | 水热法 半导体 棒束花状纳米结构 气体传感器 |
| 收稿时间： | 2015-07-22 |
Preparation and Gas Sensing Properties of α-Fe2O3with Bundle Flower Like Structures |
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| MA Jian,KOU Xueying,DING Mengdi,ZHANG Hong,SUN Yanfeng.Preparation and Gas Sensing Properties of α-Fe2O3with Bundle Flower Like Structures[J].Journal of Jilin University: Sci Ed,2016,54(1):116-120. |
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| Authors: | MA Jian KOU Xueying DING Mengdi ZHANG Hong SUN Yanfeng |
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| Institution: | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China |
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| Abstract: | Using FeCl3·6H2O as the precursor and poly(vinyl pyrrolidone) (PVP, Mw=8 000) as the surfactant, we synthesized α-Fe2O3 with bundle flower like hierarchical architectures through a hydrothermal reaction combined with subsequent calcination process. The sample structure was characterized by field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The results show that the sample structure is assembled by a rod bundle, each of which consists of a number of single crystal nanorods; the sensormade by this structure has good selectivity and high response to acetone at 200 ℃. |
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| Keywords: | hydrothermal method semiconductor bundle flower like nanostructure gas sensor |
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