A single molecule switch based on two Pd nanocrystals linked by a conjugated dithiol

被引：3

作者：

Agrawal, VV ^{[1
]}

Thomas, R ^{[1
]}

Kulkarni, GU ^{[1
]}

Rao, CNR ^{[1
]}

机构：

[1] Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2005年 / 65卷 / 05期

关键词：

conducting molecule; nanocrystals; scanning tunneling microscopy; negative differential resistance;

D O I：

10.1007/BF02704074

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Tunneling spectroscopy measurements have been carried out on a single molecule device formed by two Pd nanocrystals (dia. similar to 5 nm) electronically coupled by a conducting molecule, dimercaptodiphenylacetylene. The I-V data, obtained by positioning the tip over a nanocrystal electrode, exhibit negative differential resistance (NDR) oil a background M-I-M characteristics. The NDR, feature occurs at similar to 0.67 V at 300 K and shifts to a higher bias of 1.93 V at 90 K. When the tip is held in the middle region of the device, a Coulomb blockade region is observed (+/-similar to 0.3 V).

引用

页码：769 / 775

页数：7

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