Polyelectrolyte-quantum dot multilayer films fabricated by combined layer-by-layer assembly and Langmuir-Schaefer deposition

被引：39

作者：

Lowman, GM

Nelson, SL

Graves, SA

Strouse, GF

Buratto, SK ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA

来源：

LANGMUIR | 2004年 / 20卷 / 06期

关键词：

D O I：

10.1021/la035863v

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Stable multilayer thin films, assembled by a combination of layer-by-layer processing of polyelectrolytes and inorganic quantum dot monolayers prepared using the Langmuir-Schaefer deposition procedure, have been examined. Film formation and structure are confirmed using UV-vis absorption measurements and fluorescence spectroscopy. Growth is shown to be linear over several polyelectrolyte-quantum dot multilayers. Films consist of either (trioctylphosphine/trioctylphosphine oxide)-capped CdSe (4.1 nm +/- 0.16 nm) or dodecanethiol-capped An quantum dots (6.0 nm +/- 0.9 nm) within polyelectrolyte bilayers of the well-studied (poly(allylamine hydrochloride)/poly(styrene sulfonate)) system. Electrostatic and hydrophobic interactions combine as the basis for assembly using this versatile new procedure.

引用

页码：2057 / 2059

页数：3

共 33 条

[1] Forster energy transfer studies of polyelectrolyte heterostructures containing conjugated polymers: A means to estimate layer interpenetration [J].