Ultra low band gap α,β-unsubstituted BODIPY-based copolymer synthesized by palladium catalyzed cross-coupling polymerization for near infrared organic photovoltaics

Squeo BM, Gasparini N, Ameri T, Palma-Cando A, Allard S, Gregoriou VG, Brabec C, Scherf U, Chochos CL (2015)


Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2015

Journal

Book Volume: 3

Pages Range: 16279-16286

Journal Issue: 31

DOI: 10.1039/c5ta04229a

Abstract

A new ultra low band gap (LBG) α,β-unsubstituted BODIPY-based conjugated polymer has been synthesized by conventional cross coupling polymerization techniques (Stille cross coupling) for the first time. The polymer exhibits a panchromatic absorption spectrum ranging from 300 nm to 1100 nm and an optical band gap (Eoptg) of 1.15 eV, suitable for near infrared (NIR) organic photovoltaic applications as electron donor. Preliminary power conversion efficiency (PCE) of 1.1% in polymer : [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) 1 : 3 weight ratio bulk heterojunction (BHJ) solar cells has been achieved, demonstrating very interesting and promising photovoltaic characteristics, such as good fill factor (FF) and open circuit voltage (Voc). These results showing that by the proper chemical design, new α,β-unsubstituted BODIPY-based NIR copolymers can be developed in the future with suitable energy levels matching those of PC71BM towards more efficient NIR organic photovoltaics (OPVs).

Authors with CRIS profile

Involved external institutions

How to cite

APA:

Squeo, B.M., Gasparini, N., Ameri, T., Palma-Cando, A., Allard, S., Gregoriou, V.G.,... Chochos, C.L. (2015). Ultra low band gap α,β-unsubstituted BODIPY-based copolymer synthesized by palladium catalyzed cross-coupling polymerization for near infrared organic photovoltaics. Journal of Materials Chemistry A, 3(31), 16279-16286. https://dx.doi.org/10.1039/c5ta04229a

MLA:

Squeo, Benedetta M., et al. "Ultra low band gap α,β-unsubstituted BODIPY-based copolymer synthesized by palladium catalyzed cross-coupling polymerization for near infrared organic photovoltaics." Journal of Materials Chemistry A 3.31 (2015): 16279-16286.

BibTeX: Download