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ZnS nanorods were synthesized using solvothermal process with ethylenediamine as a bidentate ligand to form Zn^2 complexes and dodecylthiol providing an effective control over the crystal growth of ZnS nanorod. The microstructure of the nanorods was characterized by x-ray diffraction and transmission-electron microscopy. The optical properties of ZnS nanorods were examined by the photoluminescence spectrum. 相似文献
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掺Sn的Ge2Sb2Te5相变存储薄膜的光学性质 总被引:3,自引:1,他引:2
提高存储密度和存取速率一直是光存储发展的方向。这对目前用于可擦重写存储的相变材料提出了越来越多的要求:它们既要对短波长有足够的响应,同时其相变速度也越快越好。因此,相变材料性能的改进十分重要,掺杂是提高相变材料性能的重要手段之一。用直流溅射法制备了掺杂不同量Sn的Ge2Sb2Te5相变薄膜,由热处理前后薄膜的X射线衍射(XRD)发现:薄膜发生了从非晶态到晶态的相变。研究了薄膜在250—900nm区域的反射光谱和透射光谱。结果表明:适当的Sn掺杂能大大增加热处理前后材料在短波长(300—405nm)的反射率衬比度,可见,通过Sn掺杂改良相变材料的短波长光存储性能是一种有效的途径。 相似文献
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To improve the optical storage performance, Sn was doped into Ge2Sb2Te5 phase change thin films. The optical and thermal properties of Sn-doped Ge2Sb2Te5 film were investigated. The crystal structures of the as-sputtered and the annealed films were identified by the X-ray diffraction (XRD) method. The differential scanning calorimeter (DSC) method is used to get the crystallization temperature and crystallization energy (Ea). It was found that proper Sn-doping could highly improve storage performance of the Ge2Sb2Te5 media. 相似文献
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