Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Synthesis, characterization and photovoltaic behavior of a very narrow-bandgap metallopolyyne of platinum: solar cells with photocurrent extended to near-Infrared wavelength

Language

English

Abstract

The synthesis, characterization and photophysics of a solution-processable metallopolyyne of platinum (P1) functionalized with the dioctyloxyphenyl-substituted thienopyrazine-thiophene hybrid spacer and its model molecular complex (M1) are described. Such metallopolymer P1 possesses a very low bandgap of 1.50 eV which extends towards the near-infrared (NIR) range of the solar spectrum, and represents one of the lowest optical bandgaps reported for metallopolyynes. With the capability of spanning a wider solar-radiation range, P1 can be used to fabricate efficient solar cells with power conversion efficiencies (PCEs) of up to 0.46% under air mass (AM1.5) simulated solar illumination. The electronic effect of the central heterocyclic ring sandwiched between the two thiophene units on the optical properties of these metallopolyynes has been investigated. The present study provides a good approach towards achieving conjugated polymeric materials with a broad solar absorption and demonstrates the potential of low-bandgap metallopolyynes for simultaneous visible and NIR light power generation. © 2010 Springer Science+Business Media, LLC.

Keywords

Low-bandgap, Metallopolyyne, Solar cells, Thienopyrazine, Thiophene

Publication Date

2010

Source Publication Title

Journal of Inorganic and Organometallic Polymers and Materials

Volume

20

Issue

3

Start Page

478

End Page

487

Publisher

Springer Verlag

DOI

10.1007/s10904-010-9371-8

Link to Publisher's Edition

http://dx.doi.org/10.1007/s10904-010-9371-8

ISSN (print)

15741443

ISSN (electronic)

15741451

This document is currently not available here.

Share

COinS