Mn共掺杂N:CdS复合纳米颗粒的可调顺磁性

IF 0.3 Q4 CHEMISTRY, MULTIDISCIPLINARY
Surya Sekhar Reddy M
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引用次数: 0

摘要

采用共沉淀法制备了锰共掺杂N:CdS复合纳米粒子(CNps)。巯基乙醇被用作表面活性剂来控制纳米颗粒的大小。x射线衍射(XRD)研究证实了纳米橙中颗粒的大小。采用X′pert高分软件进行的Rietveld细化研究表明,制备的复合纳米颗粒存在多相。x射线研究的能量色散分析(EDAX)证实了镉中存在掺杂的锰和氮元素。傅里叶红外光谱(FTIR)研究证实了表面活性剂的存在。紫外-可见光谱(UV-VIS)研究表明,带隙中有明显的蓝移,这是量子约束效应的指示。光致发光研究(PL)认为,在λ = 632 nm处,对应于(4T1→6A1)跃迁的一个特征强峰的发射是由于在CdS晶格核心中包含了Mn2+。电子顺磁谱(EPR)研究显示了顺磁行为。EPR的超细分裂常数(A)值约为7mt,证实了在CdS核心的四面体位置包含了Mn2+和N3-。制备的复合纳米粒子的光学和磁性能的变化具有光电和磁致发光器件的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Tunable Paramagnetism in Mn co-doped N:CdS Composite Nanoparticles
Manganese-co-doped N:CdS composite nanoparticles (CNps) have been prepared by using the co-precipitation method. 2-Mercaptoethonal is used as a surfactant to control the size of nanoparticles. X-ray diffraction (XRD) studies confirm the size of the particles in the nanorange. The Rietveld refinement with X'-pert high-score software studies show multiphase existence in as-prepared composite nanoparticles. The energy dispersive analyses of X-ray studies (EDAX) confirm the presence of doped Mn and nitrogen elements in CdS. The Fourier transform infrared spectroscopy (FTIR) studies confirm the presence of surfactant. The ultraviolet-visible spectroscopy studies (UV-VIS) show a clear blue shift in the band gap, which is an indication of the quantum confinement effect. The photoluminescence studies (PL) attribute the emission of a characteristically strong peak at λ = 632 nm, corresponding to the (4T1→6A1) transition, to the inclusion of Mn2+ in the core of the CdS lattice. The electron paramagnetic spectroscopy (EPR) studies show paramagnetic behavior. The hyperfine splitting constant (A) values around 7 mT from EPR confirms the inclusion of Mn2+ and N3- in the tetrahedral sites of the CdS core. The variation in optical and magnetic properties of as-prepared composite nanoparticles has the potential for optoelectric and magnetoluminescence devices.
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来源期刊
Oriental Journal Of Chemistry
Oriental Journal Of Chemistry CHEMISTRY, MULTIDISCIPLINARY-
自引率
20.00%
发文量
172
期刊介绍: Oriental Journal of Chemistry was started in 1985 with the aim to promote chemistry research. The journal consists of articles which are rigorously peer-reviewed. The journal was indexed in Emerging Science citation index in 2016. The Editorial board member consists of eminent international scientist in all fields of Chemistry. Details of each member and their contact information is mentioned in website. The journal has thorough ethics policies and uses plagiarism detection software(ithenticate) to screen each submission. The journal has recently partnered with publons as a part of making our reviews more transparent. The journal has recently incorporated PlumX for article level matrix. The journal is promoting research on all social and academic platforms mentioned in PlumX guidelines. The journal uses google maps to improve on the geographical distribution of Editorial board members as well as authors.
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