Electronic Transport in Porphyrin Supermolecule-Gold Nanoparticle Assemblies

被引：46

作者：

Conklin, David ^{[1
]}

Nanayakkara, Sanjini ^{[1
]}

Park, Tae-Hong ^{[2
]}

Lagadec, Marie F. ^{[3
]}

Stecher, Joshua T. ^{[4
]}

Therien, Michael J. ^{[4
]}

Bonnell, Dawn A. ^{[1
]}

机构：

[1] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

[2] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA

[3] Swiss Fed Inst Technol, Dept Mat, CH-8093 Zurich, Switzerland

[4] Duke Univ, French Family Sci Ctr, Dept Chem, Durham, NC 27708 USA

来源：

NANO LETTERS | 2012年 / 12卷 / 05期

关键词：

Transport; molecular electronics; porphyrins; nanoparticles; ELECTRICAL-CONDUCTION; MONOLAYERS; SINGLET; LENGTH;

D O I：

10.1021/nl300400a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Temperature-dependent transport of hybrid structures consisting of gold nanoparticle arrays functionalized by conjugated organic molecules [(4'-thiophenyl)ethynyl-terminated meso-to-meso ethyne-bridged (porphinato)zinc(II) complexes] that possess exceptional optical and electronic properties was characterized. Differential conductance analysis distinguished the functional forms of the temperature and voltage dependences for a range of sample particles and molecular attachments. Thermally assisted tunneling describes transport for all cases and the associated mechanistic parameters can be used to determine the relative roles of activation energy, work function, and so forth. These results provide conduction in hybrid systems. the basis on which to examine plasmon-influenced conduction in hybrid systems.

引用

页码：2414 / 2419

页数：6

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