纳米棒
材料科学
热液循环
X射线光电子能谱
溶剂
化学工程
带隙
六方晶系
纳米颗粒
吸收光谱法
六角相
吸收(声学)
相(物质)
水热合成
纳米技术
分析化学(期刊)
结晶学
光电子学
光学
有机化学
复合材料
化学
物理
工程类
作者
Jyoti R Ota,Poulomi Roy,Suneel Kumar Srivastava,Ronit Popovitz‐Biro,Reshef Tenne
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2006-02-27
卷期号:17 (6): 1700-1705
被引量:57
标识
DOI:10.1088/0957-4484/17/6/026
摘要
Bi2Se3 nanorods have been synthesized through a simple hydrothermal reduction approach. The nanorods formed were ≈10 nm in diameter and 100-200 nm in length. XRD characterization suggested that the product consisted of the hexagonal phase of pure Bi2Se3. EDX and XPS studies further confirmed the composition and purity of the product. A possible mechanism for the reaction is proposed, where Bi2Se3 microsheets are presumed to be the intermediate for the formation of the nanorods. The effect of solvent on the morphology of the final product is discussed, where, in the presence of aprotic solvent DMF, nanoparticle formation is observed. A bandgap of 2.25 eV is observed from the UV-visible absorption spectra.
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