ROOM-TEMPERATURE COULOMB-BLOCKADE FROM A SELF-ASSEMBLED MOLECULAR NANOSTRUCTURE
ROOM-TEMPERATURE COULOMB-BLOCKADE FROM A SELF-ASSEMBLED MOLECULAR NANOSTRUCTURE
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DOI：
10.1103/physrevb.52.9071
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发表时间：
1995-09-15
影响因子：
3.7
通讯作者：
REIFENBERGER, R
中科院分区：
文献类型：
--
作者：
DOROGI, M;GOMEZ, J;REIFENBERGER, R
利用真空扫描隧道显微镜（STM）研究了室温下团簇束在二硫醇薄膜上沉积的纳米级Au团簇。二硫醇分子将沉积的Au簇束缚到下面的金衬底上，并且实现了Au簇的可重复STM扫描。隧穿电流作为施加电压的函数的数据产生可重复的证据，在室温下的单电子隧穿。通过将测量的I（V）数据拟合到库仑阻塞模型，还获得了单个二硫醇分子的电阻的估计。
Nanometer-size Au clusters deposited from a cluster beam onto a thin dithiol film were studied at room temperature using an ultrahigh vacuum scanning tunneling microscope (STM). The dithiol molecules tether the deposited Au clusters to the underlying gold substrate and repeatable STM scans of the Au clusters were achieved. Data of the tunneling current as a function of applied voltage yield reproducible evidence for single-electron tunneling at room temperature. By fitting the measured I(V) data to a Coulomb blockade model, estimates for the electrical resistance of a single dithiol molecule are also obtained.