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首页> 外文期刊>Nanotechnology >Synthesis, characterization and photoluminescence of lanthanum hydroxide nanorods by a simple route at room temperature
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Synthesis, characterization and photoluminescence of lanthanum hydroxide nanorods by a simple route at room temperature

机译：氢氧化镧纳米棒在室温下的简单合成，表征和光致发光

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A new and simple method to directly synthesize stable and crystalline pure phase La(OH)_3 nanorods was developed using cationic surfactant (cetyltrimethylammonium bromide, CTAB). The advantages of the method are facile synthesis, at room temperature, and low cost. X-ray diffraction (XRD) spectra, Fourier transform infrared (FTIR) spectra, scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM) and Raman spectroscopy were used to examine the morphology and microstructure to find out the cause. The results revealed that all of the products were one-dimensional rod-like nanostructures with diameters of approximately 15 nm and lengths of 120-200 nm. The four observed Raman peaks at 281, 336, 450, and 610 cm~(-1) indicated the typical hexagonal phase, which was in agreement with the x-ray diffraction results. Room-temperature photoluminescence (PL) properties were investigated under the excitation of 275 nm. The samples exhibited the emission peaks of room-temperature photoluminescence.
机译：使用阳离子表面活性剂（十六烷基三甲基溴化铵，CTAB）开发了一种直接合成稳定且结晶的纯相La（OH）_3纳米棒的新方法。该方法的优点是在室温下容易合成，并且成本低。 X射线衍射（XRD）光谱，傅立叶变换红外（FTIR）光谱，扫描电子显微镜（SEM），透射电子显微镜（TEM），高分辨率TEM（HRTEM）和拉曼光谱被用来检查样品的形貌和微观结构。找出原因。结果表明，所有产物均为一维棒状纳米结构，直径约为15nm，长度为120-200nm。在281、336、450和610 cm〜（-1）处观察到的四个拉曼峰表示典型的六方相，与X射线衍射结果一致。在275 nm激发下研究了室温光致发光（PL）特性。样品表现出室温光致发光的发射峰。

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