Electron transfer during binding processes between thiolate molecules and Au nano-islands
Electron transfer during binding processes between thiolate molecules and Au nano-islands
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硫醇盐分子与金纳米岛结合过程中的电子转移
DOI:
10.1016/j.apsusc.2018.12.138
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发表时间:
2019-04
影响因子:
6.7
通讯作者:
Hayashi Kenshi
中科院分区:
文献类型:
--
作者:
Chen Bin;Liu Chuanjun;Shang Liang;Huang Ying;Yang Shaohua;Sun Xiaoyan;Feng Changhao;Hayashi Kenshi
We investigated electron transfer during the time-dependent binding processes between thiolate molecules and Au nano-islands by observing tunneling current with an interdigitated microelectrode supporting the sputtered Au nano-islands (IME@AuNI). The time-dependent optical and electrical signal variation during the binding process was examined for five kinds of thiolates. As the immersion time was prolonged, the optical absorbance increased, whereas the current passing through the IME@AuNI decreased. Importantly, the spectral and current characteristics depended on the thiolate structure, because of the formation of capping layer in accordance with thiolate structure. These results are mainly attributed to synergistic effects of electron transfer from Au nano-islands to thiolate molecules and bridging effects of thiolate molecules among Au nano-islands.
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影响因子:
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通讯作者:
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