Fluorene-based co-polymer with high hole mobility and device performance in bulk heterojunction organic solar cells

Darren C Watters; Hunan Yi; Andrew J Pearson; James Kingsley; Ahmed Iraqi; David Lidzey

doi:10.1002/marc.201300258

Fluorene-based co-polymer with high hole mobility and device performance in bulk heterojunction organic solar cells

Macromol Rapid Commun. 2013 Jul 25;34(14):1157-62. doi: 10.1002/marc.201300258. Epub 2013 Jun 5.

Authors

Darren C Watters¹, Hunan Yi, Andrew J Pearson, James Kingsley, Ahmed Iraqi, David Lidzey

Affiliation

¹ Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, UK.

PMID: 23737100
DOI: 10.1002/marc.201300258

Abstract

A new donor-acceptor polymer based on 9,9-dioctylfluorene is synthesized and tested in organic photovoltaic devices. Results show that the polymer exhibits good solubility in a range of organic solvents and has a high hole mobility. When blended with a PC70 BM acceptor and fabricated into a bulk heterojunction, photovoltaic devices having a maximum power conversion efficiency (PCE) of 6.2% and a peak external quantum efficiency of 74% are created. Such efficiencies are realized without any necessity for solvent additives or thermal annealing protocols.

Keywords: conjugated polymers; fullerenes; high-performance polymers; thin films.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electrochemical Techniques
Fluorenes / chemistry*
Fullerenes / chemistry*
Molecular Structure
Polymers / chemical synthesis*
Solar Energy*
Solubility
Sunlight

Substances

Fluorenes
Fullerenes
Polymers