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Ultrasonic preparation of tungsten disulfide singlelayers and quantum dots

机译:钨二硫化物单层和量子点的超声波制备

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摘要

Natural raw mineral tungstenite (WS2) was exfoliated to single-layer sheets using high intensity ultrasound. Exfoliation of bulk layered materials, such as WS2 by ultrasound is an attractive way to a largescale preparation of mono-or few-layered crystals. To evaluate the quality of delamination, X-ray diffraction, Raman spectroscopy and microscopic techniques (TEM and AFM) were employed. The obtained exfoliated product served as a precursor for quantum dot preparation using simple refluxing in ethylene glycol. The synthesized WS2 quantum dots were characterized by photoluminescence spectroscopy and AFM microscopy. Exfoliated WS2 can thus join the group of similarly prepared single-layers of MoS2 or graphene.
机译:使用高强度超声波将天然原料矿物钨矿(WS2)剥离到单层板上。 通过超声波的散装层材料的剥离是一种有吸引力的单颗或少数层状晶体制备的有吸引力的方法。 为了评估分层的质量,采用X射线衍射,拉曼光谱和微观技术(TEM和AFM)。 通过在乙二醇中使用简单的回流,所获得的剥离产物用作量子点制剂的前体。 通过光致发光光谱和AFM显微镜表征合成的WS2量子点。 因此,输出的WS2可以加入类似于类似制备的单层MOS2或石墨烯的组。

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  • 来源
    《RSC Advances》 |2015年第109期|共9页
  • 作者单位

    Department of Material Chemistry Institute of Inorganic Chemistry AS CR v.v.i. 250 68 Rez Czech Republic.;

    Department of Material Chemistry Institute of Inorganic Chemistry AS CR v.v.i. 250 68 Rez Czech Republic.;

    Department of Material Chemistry Institute of Inorganic Chemistry AS CR v.v.i. 250 68 Rez Czech Republic.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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