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ZnTe nanocrystal formation and growth control on UV-transparent substrate

机译:ZnTe纳米晶体在UV透明基板上的形成和生长控制

摘要

ZnTe nanocrystals (NCs) were successfully grown in a UV transparent, vitreous substrate synthesized by fusion and then annealed. The formation of dot structures, emitting in the UV-range, was investigated by optical absorption (OA), atomic force microscopy (AFM) and Raman spectroscopy. Dot growth was evidenced by an OA band red-shift with increasing annealing time. Average sizes of the ZnTe dots were determined using the effective mass fit model with OA spectra and comparing the results with estimates from AFM images. A UV-transparent PZABP vitreous matrix was used because it allowed ZnTe NC growth and displayed typical Raman active phonon modes.
机译:ZnTe纳米晶体(NCs)在通过融合合成然后进行退火的UV透明玻璃基底中成功生长。通过光吸收(OA),原子力显微镜(AFM)和拉曼光谱研究了在UV范围内发射的点结构的形成。随着退火时间的增加,OA带红移证明了点的增长。 ZnTe点的平均大小是使用有效质量拟合模型和OA光谱确定的,并将结果与​​AFM图像的估计值进行比较。使用紫外线透明的PZABP玻璃基质,因为它允许ZnTe NC生长并显示典型的拉曼活性声子模。

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