Controlling the Electronic Properties of Silicon Nanowires with Functional Molecular Groups

被引：34

作者：

Haight, Richard ^{[1
]}

Sekaric, Lidija ^{[1
]}

Afzali, Ali ^{[1
]}

Newns, Dennis ^{[1
]}

机构：

[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

NANO LETTERS | 2009年 / 9卷 / 09期

关键词：

SURFACES; CHEMISORPTION; NANOSENSORS; DEVICES; GAAS; SI;

D O I：

10.1021/nl901351h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Attachment of a simple polar molecule, terpyridine, to the surfaces of Si nanowires with diameters ranging from 7-100 nm was investigated with two terminal conductivity measurements, a unique single nanowire photoelectron spectroscopy, and theoretical analysis. Our experiments reveal the details of molecule-nanowire bonding and charge transfer, diameter dependent Fermi level shifts, and acid attachment leading to conductivity in the cylindrical molecular nanolayer surrounding the nanowire.

引用

页码：3165 / 3170

页数：6

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