Stable Inverted Polymer/Fullerene Solar Cells Using a Cationic Polythiophene Modified PEDOT:PSS Cathodic Interface

被引：79

作者：

Rider, David A. ^{[1
,2
]}

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

Harris, Kenneth D. ^{[2
]}

Lalany, Abeed ^{[3
]}

Shahbazi, Kevin ^{[2
]}

Fleischauer, Michael D. ^{[2
]}

Brett, Michael J. ^{[2
,3
]}

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

机构：

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

[2] NRC Natl Inst Nanotechnol, Edmonton, AB T6G 2M9, Canada

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

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 15期

基金：

加拿大自然科学与工程研究理事会;

关键词：

INDIUM-TIN OXIDE; PHOTOVOLTAIC CELLS; ORGANIC PHOTOVOLTAICS; THIN-FILMS; POLYMER; FABRICATION; HETEROJUNCTIONS; NANOSTRUCTURES; SPECTROSCOPY; ULTRAVIOLET;

D O I：

10.1002/adfm.201000304

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A cationic and water-soluble polythiophene [poly[3-(6-pyridiniumylhexyl) thiophene bromide] (P3PHT(+)Br(-))] is synthesized and used in combination with anionic poly(3,4-ethylenedioxythiophene):poly(p-styrenesulfonate) (PEDOT:PSS)(-) to produce hybrid coatings on indium tin oxide (ITO). Two coating strategies are established: i) electrostatic layer-by-layer assembly with colloidal suspensions of (PEDOT:PSS)(-), and ii) modification of an electrochemically prepared (PEDOT:PSS)(-) film on ITO. The coatings are found to modify the work function of ITO such that it could act as a cathode in inverted 2,5-diyl-poly(3-hexylthiophene) (P3HT)/[6,6]-phenyl-C-61-butyric acid methyl ester (PCBM) polymer photovoltaic cells. The interfacial modifier created from the layer-by-layer assembly route is used to produce efficient inverted organic photovoltaic devices (power conversion efficiency similar to 2%) with significant long-term stability in excess of 500 h.

引用

页码：2404 / 2415

页数：12

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