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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Growth and structural properties of pulsed laser-ablated CuInSe_2 nanoparticles by pulsed-laser ablation and selenization process
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Growth and structural properties of pulsed laser-ablated CuInSe_2 nanoparticles by pulsed-laser ablation and selenization process

机译:脉冲激光烧蚀和硒化过程对脉冲激光烧蚀CuInSe_2纳米粒子的生长和结构性能的影响

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摘要

Nanoparticles of CuInSe_2 (CIS) were synthesized by pulsed laser ablation. The effect of the preparation conditions on the structural properties of the CIS nanoparticles was investigated. The CIS nanoparticles showed a more developed structural property after treatment in Se-evaporated atmosphere. By X-ray photoelectron spectroscopy, increase of Se amounts in the CIS nanoparticles was confirmed. Enhancement of phonon modes in the CIS nanoparticles was observed in Raman scattering spectroscopy while secondary phases like In_2Se_3 or CuAu structure-related peak were identified in the spectra. High-resolution transmission electron microscopy indicated that the individual nanoparticles were embedded in matrix of some amorphous layers and diffraction patterns representing the chalcopyrite structure were also scrutinized.
机译:通过脉冲激光烧蚀合成了CuInSe_2(CIS)纳米颗粒。研究了制备条件对CIS纳米颗粒结构性能的影响。 CIS纳米颗粒在Se蒸发气氛中处理后显示出更发达的结构性能。通过X射线光电子能谱,证实了CIS纳米颗粒中Se含量的增加。在拉曼散射光谱中观察到CIS纳米粒子中声子模的增强,而在光谱中鉴定出In_2Se_3或CuAu结构相关峰等次生相。高分辨率透射电子显微镜表明,各个纳米粒子被嵌入一些非晶层的基质中,并且还仔细检查了代表黄铜矿结构的衍射图样。

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