Cover Image

Photo- and electroluminescence of ambipolar, high-mobility, donor-acceptor polymers

Donor-acceptor polymers with narrow bandgaps are promising materials for bulk heterojunction solar cells and high-mobility field-effect transistors. They also emit light in the near-infrared. Here we investigate and compare the photoluminescence and electroluminescence properties of different narrow...

Full description

Saved in:
Bibliographic Details
Main Authors: Held, Martin (Author) , Zakharko, Yuriy (Author) , Wang, Ming (Author) , Jakubka, Florian (Author) , Gannott, Florentina (Author) , Rumer, Joseph W. (Author) , Ashraf, Raja Shahid (Author) , McCulloch, Iain (Author) , Zaumseil, Jana (Author)
Format: Article (Journal)
Language:English
Published: 4 March 2016
In: Organic electronics
Year: 2016, Volume: 32, Pages: 220-227
DOI:10.1016/j.orgel.2016.02.030
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.orgel.2016.02.030
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S156611991630074X
Get full text
Author Notes:Martin Held, Yuriy Zakharko, Ming Wang, Florian Jakubka, Florentina Gannott, Joseph W. Rumer, Raja Shahid Ashraf, Iain McCulloch, Jana Zaumseil
Description
Summary:Donor-acceptor polymers with narrow bandgaps are promising materials for bulk heterojunction solar cells and high-mobility field-effect transistors. They also emit light in the near-infrared. Here we investigate and compare the photoluminescence and electroluminescence properties of different narrow bandgap (<1.5 eV) donor-acceptor polymers with diketopyrrolopyrrole (DPP), isoindigo (IGT) and benzodipyrrolidone (BPT) cores, respectively. All of them show near-infrared photoluminescence quantum yields of 0.03-0.09% that decrease with decreasing bandgap. Bottom-contact/top-gate field-effect transistors show ambipolar charge transport with hole and electron mobilities between 0.02 and 0.7 cm2 V−1 s−1 and near-infrared electroluminescence. Their external quantum efficiencies reach up to 0.001%. The effect of polaron quenching and other reasons for the low electroluminescence efficiency of these high mobility polymers are investigated.
Item Description:Gesehen am 12.05.2020
Physical Description:Online Resource
DOI:10.1016/j.orgel.2016.02.030

Similar Items