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Photo- and electroluminescence of ambipolar, high-mobility, donor-acceptor polymers
File(s)
Author(s)
Held, M
Zakharko, Y
Wang, M
Jakubka, F
Gannott, F
Type
Journal Article
Abstract
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.
Date Issued
2016-03-04
Date Acceptance
2016-02-21
Citation
Organic Electronics, 2016, 32, pp.220-227
URI
DOI
ISSN
1566-1199
Publisher
Elsevier
Start Page
220
End Page
227
Journal / Book Title
Organic Electronics
Volume
32
Copyright Statement
© 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND
license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
License URL
Subjects
Science & Technology
Technology
Physical Sciences
Materials Science, Multidisciplinary
Physics, Applied
Materials Science
Physics
Donor-acceptor polymers
Ambipolar
Field-effect transistors
Electroluminescence
Photoluminescence
Polaron quenching
FIELD-EFFECT TRANSISTORS
HIGH-PERFORMANCE AMBIPOLAR
CARBON-NANOTUBE NETWORKS
CHARGE-CARRIER MOBILITY
SEMICONDUCTING POLYMERS
CONJUGATED POLYMERS
SOLAR-CELLS
ORGANIC TRANSISTORS
QUANTUM DOTS
RECOMBINATION
Applied Physics
02 Physical Sciences
03 Chemical Sciences
09 Engineering
Publication Status
Published