In(OH)3 and In2O3 Nanorod Bundles and Spheres: Microemulsion-Mediated Hydrothermal Synthesis and Luminescence Properties
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- 作者：Jun Yang ; Cuikun Lin ; Zhenling Wang ; Jun Lin
- 刊名：Inorganic Chemistry
- 出版年：2006
- 出版时间：October 30, 2006
- 年：2006
- 卷：45
- 期：22
- 页码：8973 - 8979
- 全文大小：1007K
- 年卷期：v.45,no.22(October 30, 2006)
- ISSN：1520-510X
文摘
Indium hydroxide, In(OH)3, nano-microstructures with two kinds of morphology, nanorod bundles (around 500 nmin length and 200 nm in diameter) and caddice spherelike agglomerates (around 750-1000 nm in diameter), weresuccessfully prepared by the cetyltrimethylammonium bromide (CTAB)/water/cyclohexane/n-pentanol microemulsion-mediated hydrothermal process. Calcination of the In(OH)3 crystals with different morphologies (nanorod bundlesand spheres) at 600 
C in air yielded In2O3 crystals with the same morphology. X-ray diffraction, scanning electronmicroscopy, transmission electron microscopy, and photoluminescence (PL) spectra as well as kinetic decays wereused to characterize the samples. The pH values of microemulsion play an important role in the morphologicalcontrol of the as-formed In(OH)3 nano-microstructures from the hydrothermal process. The formation mechanismsfor the In(OH)3 nano-microstructures have been proposed on an aggregation mechanism. In2O3 nanorod bundlesand spheres show a similar blue emission peaking around 416 and 439 nm under the 383-nm UV excitation, whichis mainly attributed to the oxygen vacancies in the In2O3 nano-microstructures.
C in air yielded In2O3 crystals with the same morphology. X-ray diffraction, scanning electronmicroscopy, transmission electron microscopy, and photoluminescence (PL) spectra as well as kinetic decays wereused to characterize the samples. The pH values of microemulsion play an important role in the morphologicalcontrol of the as-formed In(OH)3 nano-microstructures from the hydrothermal process. The formation mechanismsfor the In(OH)3 nano-microstructures have been proposed on an aggregation mechanism. In2O3 nanorod bundlesand spheres show a similar blue emission peaking around 416 and 439 nm under the 383-nm UV excitation, whichis mainly attributed to the oxygen vacancies in the In2O3 nano-microstructures.