Tuning the conductance of H2O@C60 by position of the encapsulated H2O

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作者：
Chengbo Zhu
Xiaolin Wang
机构：
[1] Spintronic and Electronic Materials Group,
[2] Institute for Superconducting and Electronic Materials,undefined
[3] Australian Institute for Innovative Materials,undefined
[4] University of Wollongong,undefined
来源：
Scientific Reports | / 5卷
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摘要：
The change of conductance of single-molecule junction in response to various external stimuli is the fundamental mechanism for the single-molecule electronic devices with multiple functionalities. We propose the concept that the conductance of molecular systems can be tuned from inside. The conductance is varied in C60 with encapsulated H2O, H2O@C60. The transport properties of the H2O@C60-based nanostructure sandwiched between electrodes are studied using first-principles calculations combined with the non-equilibrium Green’s function formalism. Our results show that the conductance of the H2O@C60 is sensitive to the position of the H2O and its dipole direction inside the cage with changes in conductance up to 20%. Our study paves a way for the H2O@C60 molecule to be a new platform for novel molecule-based electronics and sensors.
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