Self-assembly of photoluminescent copper(I)-dithiol multilayer thin films and bulk materials

被引：130

作者：

Brust, M ^{[1
]}

Blass, PM ^{[1
]}

Bard, AJ ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT CHEM & BIOCHEM,AUSTIN,TX 78712

来源：

LANGMUIR | 1997年 / 13卷 / 21期

关键词：

D O I：

10.1021/la970493u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Self-assembled multilayer thin films have been prepared on Au and mercaptosilanized glass substrates by alternate surface derivatization with Cu2+ ion and alkanedithiols. The films deposited on glass show intrinsic orange-red photoluminescence and were studied by fluorescence spectroscopy. A strongly photoluminescent solid was also obtained by reaction of 1,6-hexanedithiol with cupric perchlorate in ethanolic solution. Multilayer structures on Au were studied by ellipsometry and X-ray photoelectron spectroscopy (XPS). Both in the solid material and in the self-assembled thin films, XPS measurements suggest Cu is present in the +1 oxidation state. This was also confirmed by cyclic voltammetry of Cu ion adsorbed to a self-assembled monolayer of 1,6-hexanedithiol on gold. Metal-metal interactions in the form of clustering might contribute to the unusual photophysical properties observed in both types of materials.

引用

页码：5602 / 5607

页数：6

共 37 条

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