Encapsulated Nanoparticles Produced by Pulsed Laser Ablation of MoS2−Te Composite Target

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• 作者：J. J. Hu ; Jeffrey S. Zabinski ; John E. Bultman ; Jeffrey H. Sanders ; Andrey A. Voevodin
• 刊名：Crystal Growth & Design
• 出版年：2008
• 出版时间：August 2008
• 年：2008
• 卷：8
• 期：8
• 页码：2603-2605
• 全文大小：167K
• 年卷期：v.8,no.8(August 2008)
• ISSN：1528-7505

文摘

Encapsulated nanoparticles were produced by the pulsed laser ablation of MoS₂−Te composite targets in a high vacuum chamber. Transmission electron microscope and X-ray energy dispersive spectrometer measurements showed that core-like Mo-rich nanoparticles were encapsulated with shell-like Te-rich materials. Layer structures of the hexagonal MoTe₂ phase were formed on the nanoparticle surface that was linked to the diffusion-controlled migration and crystallization. The mechanism of nanoparticle syntheses was discussed in relationship with the pulsed laser ablation of MoS₂−Te target materials, the formation of Mo-rich cores, and the growth of layer-structured MoTe₂ shells.