Interface dipole at organic/metal interfaces and organic solar cells

被引：49

作者：

Crispin, X ^{[1
]}

机构：

[1] Linkoping Univ, Dept Sci & Technol, S-60174 Norrkoping, Sweden

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2004年 / 83卷 / 2-3期

关键词：

charge injection-collection; photoelectron spectroscopy; density functional theory; metalorganic interface;

D O I：

10.1016/j.solmat.2004.02.022

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In organic-based solar cells, the interface dipole present at the organic/metal interface participates to the collection and injection of charges between the electrode and the active organic material. The origins of the interface dipole is illustrated for a model system of the organic/metal interface composed of the electron-donor molecule p-phenylenediamine (PPDA) interacting with a nickel surface. The interface dipole created at the PPDA/Ni interface is characterized in a joint experimental and theoretical study using photoelectron spectroscopy and density functional theory calculations. The formation of strong interface dipoles upon chemisorption of a PPDA mono-layer is accompanied by a significant decrease (1.5eV) of the metal work function reaching 3.6eV. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：147 / 168

页数：22

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