Electrostatic Layer-by-Layer Assembly of CdSe Nanorod/Polymer Nanocomposite Thin Films

被引：45

作者：

McClure, Sean A. ^{[1
,2
]}

Worfolk, Brian J. ^{[1
,2
]}

Rider, David A. ^{[2
]}

Tucker, Ryan T. ^{[3
]}

Fordyce, Jordan A. M. ^{[2
]}

Fleischauer, Michael D. ^{[1
]}

Harris, Ken D. ^{[1
]}

Brett, Michael J. ^{[1
,3
]}

Buriak, Jillian M. ^{[1
,2
]}

机构：

[1] Natl Res Council Canada, Natl Inst Nanotechnol, Edmonton, AB T6G 2M9, Canada

[2] Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada

[3] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

来源：

ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

water-soluble CdSe nanorods; ligand exchange; polythiophene; layer-by-layer; multilayer thin films; charge transfer; HETEROJUNCTION SOLAR-CELLS; POLYMER PHOTOVOLTAIC CELLS; CDTE NANOCRYSTAL BILAYERS; LIGHT-EMITTING-DIODES; DNA MULTILAYER FILMS; QUANTUM DOTS; CONDUCTING POLYMERS; BULK HETEROJUNCTION; CONJUGATED POLYMERS; CYCLIC VOLTAMMETRY;

D O I：

10.1021/am900659v

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Electrostatic layer-by-layer assembly was the basis for the synthesis of multilayer nanorod/polymer composite films. Cationic and water-soluble CdSe nanorods (NRs) were synthesized and partnered with anionic polymers including poly(sodium 4-styrenesulfonate) (PSS) and two polythiophene-based photoactive polymers, sodium poly[2-(3-thienyl)-ethoxy-4-butylsulfonate (PTEBS) and poly[3-(potassium-6-hexanoace)thiophene-2,5-diyl] (P3KHT). Controlled multilayer growth is shown through UV-vis spectroscopy, cross-sectional SEM and surface analytical techniques including atomic force microscopy. The formation of an intimate nanorod/conducting polymer bulk heterojunction is confirmed through cross-sectional SEM, TEM, and scanning Auger analysis. A series of photovoltaic devices was fabricated on ITO electrodes using CdSe NRs in combination with PTEBS or P3KHT. A thorough device analysis showed that performance was limited by low short circuit current although charge transfer was confirmed in the ELBL nanocomposite thin films.

引用

页码：219 / 229

页数：11

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