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Spin Selective Charge Transport through Cysteine Capped CdSe Quantum Dots

机译:通过半胱氨酸封端的CdSe量子点的自旋选择性电荷传输

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This work demonstrates that chiral imprinted CdSe quantum dots (QDs) can act as spin selective filters for charge transport. The spin filtering properties of chiral nanoparticles were investigated by magnetic conductive-probe atomic force microscopy (mCP-AFM) measurements and magnetoresistance measurements. The mCP-AFM measurements show that the chirality of the quantum dots and the magnetic orientation of the tip affect the current voltage curves. Similarly, magnetoresistance measurements demonstrate that the electrical transport through films of chiral quantum dots correlates with the chiroptical properties of the QD. The spin filtering properties of chiral quantum dots may prove useful in future applications, for example, photovoltaics, spintronics, and other spin driven devices.
机译:这项工作证明手性印迹的CdSe量子点(QD)可以作为自旋选择滤光片进行电荷传输。通过磁性探针原子力显微镜(mCP-AFM)和磁阻测量研究了手性纳米粒子的自旋过滤性能。 mCP-AFM测量表明,量子点的手性和尖端的磁取向会影响电流电压曲线。同样,磁阻测量表明,通过手性量子点薄膜的电传输与QD的手性有关。手性量子点的自旋滤波特性可能会在未来的应用中证明有用,例如光伏,自旋电子学和其他自旋驱动的设备。

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