Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Synthesis, characterization and photovoltaic behavior of platinum acetylide polymers with electron-deficient 9,10-anthraquinone moiety

Language

English

Abstract

A new class of soluble, solution-processable platinum(II) acetylide polymers functionalized with electron-deficient 9,10-anthraquinone spacer and their corresponding diplatinum model complexes were synthesized and characterized. The organometallic polymers exhibit good thermal stability and show low-energy broad absorption bands in the visible region. The effect of the presence of thiophene rings along the polymer chain on the optical and photovoltaic properties of these metallated materials was examined. The low-bandgap polymer with thiophene-anthraquinone-thiophene (donor-acceptor- donor) fragment can serve as a good electron donor for fabricating bulk heterojunction polymer solar cells by blending with a methanofullerene electron acceptor. At the same donor:acceptor blend ratio of 1:4, the light-harvesting ability and solar cell efficiency notably increase when the anthraquinone ring is sandwiched by two thiophene units. Photoexcitation of such polymer solar cells results in a photoinduced electron transfer from the π-conjugated metallopolymer to [6,6]-phenyl C61-butyric acid methyl ester with power conversion efficiency up to ∼ 0.35%. For safety concern, these metallopolymers were also tested for possible cytotoxicity and they do not show significant cytotoxic activity on human liver derived cells and skin keratinocytes at reasonable doses, rendering these functional materials safe to use in practical devices. © 2010 Elsevier B.V. All rights reserved.

Keywords

Anthraquinone, Metallopolymers, Photovoltaics, Platinum, Thiophene

Publication Date

2011

Source Publication Title

Journal of Organometallic Chemistry

Volume

696

Issue

6

Start Page

1189

End Page

1197

Publisher

Elsevier

DOI

10.1016/j.jorganchem.2010.08.044

ISSN (print)

0022328X

This document is currently not available here.

Share

COinS