Molecular Diodes Induced by a Schottky Barrier with a Gold–Silicon Doped Electrode
To create complementary metal oxide semiconductor compatible molecular devices, more insights into the electrode property regarding its metal/semiconductor doping level and creating a functional molecular device are required. In this work, we constructed an EGaIn/alkanethiol/Au–Si molecular diode (w...
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| Veröffentlicht in: | The journal of physical chemistry letters 2024-07, Vol.15 (27), p.7011-7019 |
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| container_title | The journal of physical chemistry letters |
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| creator | Wu, An Fan, Yidan Tao, Changyuan Chen, Xiaoping Dappe, Yannick J. Du, Jun Zhang, Qian |
| description | To create complementary metal oxide semiconductor compatible molecular devices, more insights into the electrode property regarding its metal/semiconductor doping level and creating a functional molecular device are required. In this work, we constructed an EGaIn/alkanethiol/Au–Si molecular diode (with a rectification ratio R of 50.70) induced by Schottky barriers within a gold–silicon doped electrode instead of the functional property of molecules. The relationship between the rectification ratio and the number of methylene units in alkanethiol was analyzed, revealing a gradual increase in the ratio from 3.33 for C6H14S to 50.70 for C16H34S. The rectification ratio of the junction is well modulated by the temperature due to the change in the Schottky barrier. Such a mechanism is explained by the energy band diagrams of the surface space charge region and a combination of density functional theory and Keldysh–Green formalism calculations. |
| doi_str_mv | 10.1021/acs.jpclett.4c01351 |
| format | Article |
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Phys. Chem. Lett</addtitle><description>To create complementary metal oxide semiconductor compatible molecular devices, more insights into the electrode property regarding its metal/semiconductor doping level and creating a functional molecular device are required. In this work, we constructed an EGaIn/alkanethiol/Au–Si molecular diode (with a rectification ratio R of 50.70) induced by Schottky barriers within a gold–silicon doped electrode instead of the functional property of molecules. The relationship between the rectification ratio and the number of methylene units in alkanethiol was analyzed, revealing a gradual increase in the ratio from 3.33 for C6H14S to 50.70 for C16H34S. The rectification ratio of the junction is well modulated by the temperature due to the change in the Schottky barrier. 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| title | Molecular Diodes Induced by a Schottky Barrier with a Gold–Silicon Doped Electrode |
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