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首页> 外文期刊>Advanced Functional Materials >Dual Functionalization of Liquid-Exfoliated Semiconducting 2H-MoS2 with Lanthanide Complexes Bearing Magnetic and Luminescence Properties
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Dual Functionalization of Liquid-Exfoliated Semiconducting 2H-MoS2 with Lanthanide Complexes Bearing Magnetic and Luminescence Properties

机译：具有磁性和发光特性的镧系元素配合物对液体剥落半导体2H-MoS2的双重功能化

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摘要

Liquid exfoliated, atomically thin semiconducting transition metal dichalcogenides (TMDs), as inorganic equivalents of graphene, have attracted great interest due to their distinctive physical, optoelectronic, and chemical properties. Functionalization of 2D TMDs brings new prospects for applications in optoelectronics, quantum technologies, catalysis, and medicine. In this report, dual functionalization of 2D semiconducting 2H-MoS2 nanosheets through simultaneous incorporation of magnetic and luminescent properties is demonstrated. A facile method is proposed for tuning the properties of the TDM semiconductors and accessing multimodal platforms, consisting in covalent grafting of lanthanide complexes onto the surface of 2D TMDs. Dual functionalization of liquid-exfoliated MoS2 nanosheets is demonstrated simultaneously with both europium (III) and gadolinium (III) complexes to form a colloidally stable luminescent (with millisecond lifetimes) and paramagnetic MoS2-based nanohybrid material. This work is the first example of transition metal dichalcogenide nanosheets functionalized with preformed lanthanide complexes. These findings open new prospects for covalent functionalization of TMDs with molecular species bearing specific functionalities as a means to tune the optoelectronic properties of the semiconductors, in order to create advanced materials and devices with a wide range of functionalities.
机译：作为石墨烯的无机等效物，液体剥落的原子薄的半导体过渡金属二卤化二金属锡（TMD）由于其独特的物理，光电和化学特性而引起了人们的极大兴趣。二维TMD的功能化为光电子，量子技术，催化和医学领域的应用带来了新的前景。在这份报告中，通过同时结合磁性和发光特性，证明了2D半导体2H-MoS2纳米片的双重功能化。提出了一种简便的方法来调节TDM半导体的性能并访问多峰平台，该方法包括将镧系元素络合物共价接枝到2D TMD的表面上。液态剥落的MoS2纳米片与functional（III）和g（III）配合物同时形成胶体稳定的发光体（具有毫秒级寿命）和顺磁性的MoS2基纳米杂化材料，同时证明了其双重功能。这项工作是用预先形成的镧系元素络合物功能化的过渡金属二卤化物纳米片的第一个实例。这些发现为带有特定功能的分子种类的TMD的共价功能化开辟了新的前景，作为一种调节半导体光电子性能的手段，从而创造了具有广泛功能的先进材料和器件。

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  • 来源
    《Advanced Functional Materials》 |2017年第42期|1703646.1-1703646.7|共7页
  • 作者

    McAdams Simon G.; Lewis Edward A.; Brent Jack R.; Haigh Sarah J.; Thomas Andrew G.; OBrien Paul; Tuna Floriana; Lewis David J.;

  • 作者单位

    Univ Manchester, Sch Chem, Oxford Rd, Manchester M13 9PL, Lancs, England;

    Univ Manchester, Sch Mat, Oxford Rd, Manchester M13 9PL, Lancs, England;

    Univ Manchester, Sch Mat, Oxford Rd, Manchester M13 9PL, Lancs, England;

    Univ Manchester, Sch Mat, Oxford Rd, Manchester M13 9PL, Lancs, England|Univ Manchester, Natl Graphene Inst, Oxford Rd, Manchester M13 9PL, Lancs, England;

    Univ Manchester, Sch Mat, Oxford Rd, Manchester M13 9PL, Lancs, England|Univ Manchester, Photon Sci Inst, Oxford Rd, Manchester M13 9PL, Lancs, England;

    Univ Manchester, Sch Chem, Oxford Rd, Manchester M13 9PL, Lancs, England|Univ Manchester, Sch Mat, Oxford Rd, Manchester M13 9PL, Lancs, England|Univ Manchester, Photon Sci Inst, Oxford Rd, Manchester M13 9PL, Lancs, England;

    Univ Manchester, Sch Chem, Oxford Rd, Manchester M13 9PL, Lancs, England|Univ Manchester, Photon Sci Inst, Oxford Rd, Manchester M13 9PL, Lancs, England;

    Univ Manchester, Sch Mat, Oxford Rd, Manchester M13 9PL, Lancs, England;

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  • 正文语种 eng
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  • 关键词

    2D materials; lanthanide complexes; magnetic properties; metal dichalcogenides; multifunctionality;

    机译：二维材料镧系元素配合物磁性金属二卤化物多功能;

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