Spontaneous charge transfer at organic-organic homointerfaces to establish thermodynamic equilibrium

被引：22

作者：

Duhm, S.

Glowatzki, H.

Rabe, J. P.

Koch, N.

Johnson, R. L.

机构：

[1] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[2] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 12期

关键词：

D O I：

10.1063/1.2715042

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The energy level alignment of alpha,omega-dihexylsexithienyl (DH6T) mono- and multilayers on tetrafluorotetracyanoquinodimethane (F4-TCNQ) precovered Ag(111) and polycrystalline Au substrates was investigated with ultraviolet photoelectron spectroscopy. For certain F4-TCNQ precoverages molecular level pinning at DH6T monolayer-multilayer homointerfaces was observed. The pinning behavior shows that thermodynamic equilibrium can be established across hexyl chains via charge transfer, indicating the limited use of these short alkyl chains for insulation in the field of molecular electronics. (c) 2007 American Institute of Physics.

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页数：3

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