Role of CsF on electron injection into a conjugated polymer

被引：152

作者：

Piromreun, P

Oh, H

Shen, YL

Malliaras, GG ^{[1
]}

Scott, JC

Brock, PJ

机构：

[1] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

[2] IBM Corp, Almaden Res Ctr, Div Res, San Jose, CA 95120 USA

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 15期

关键词：

D O I：

10.1063/1.1317547

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We studied electron injection from Al and Au cathodes into the conjugated polymer poly[2-methoxy,5-(2-ethylhexoxy)-1,4-phenylene vinylene] (MEH-PPV). When a thin CsF layer is inserted between MEH-PPV and Al, a substantial enhancement in electron injection is observed. Insertion of the same layer between MEH-PPV and Au does not have a similar effect, indicating that the enhancement mechanism is specific to CsF and Al. Thin Cs layers enhance electron injection regardless of the cathode metal. A mechanism that explains these observations is proposed. (C) 2000 American Institute of Physics. [S0003-6951(00)04341-2].

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页码：2403 / 2405

页数：3

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