Device applications of self-assembled monolayers and monolayer-protected nanoclusters

被引:27
作者
Aslam, M [1 ]
Chaki, NK [1 ]
Sharma, J [1 ]
Vijayamohanan, K [1 ]
机构
[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
关键词
self-assembled monolayers (SAMs); monolayer-protected nanoclusters (MPCs); molecular electronics; cyclic voltammetry; tunnel junction devices;
D O I
10.1016/S1567-1739(02)00180-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The present status of self-assembled monolayers (SAMs) on different surfaces (213 systems) as well as monolayer formation on metallic and semiconducting cluster surfaces (3D SAM) to form monolayer-protected nanoclusters (MPCs) and their assemblies is reviewed briefly. Attention is focused mainly on the potential electronic and photonic applications of SAMs, MPCs and their 2D and 3D structures fabricated using covalent and hydrophobic interactions in contrast to the usual electrostatic assemblies. These examples illustrate the rational use of organic molecules and nanoclusters using the concept of self-assembly, where subtle systems of double tunnel junctions, hetero junctions and single-electron transition devices could be developed based on the structure and chemistry of multifunctional molecules. The tailoring of cluster size and cluster-cluster spacing to reveal interesting transitions in electronic properties is also demonstrated using the low temperature behavior of the 3D network of nanoclusters as an example. These devices are believed to play an important role in the coming years as the chip functions and clock frequencies reach orders of magnitude beyond those extrapolated from Moore's law. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:115 / 127
页数:13
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