Persistent Identifier
|
doi:10.11588/data/K7GEM8 |
Publication Date
|
2022-05-02 |
Title
| Crosslinking Super Yellow to produce Super OLEDs: Crosslinking with Azides Enables Improved Performance [Data] |
Author
| Ehjeij, Daniel (OCI, Universität Heidelberg)
Hengge, Michael (Helmholtz-Zentrum Berlin für Materialien und Energie GmbH)
Hänsch, Paul (Institut für Physik, Institut für Chemie, Humboldt-Universität zu Berlin)
Benneckendorf, Frank S. (OCI, Universität Heidelberg)
Freudenberg, Jan (OCI, Universität Heidelberg)
Bunz, Uwe H. F. Bunz (OCI, Universität Heidelberg)
Müllen, Klaus (Max Planck Institute for Polymer Research)
List-Kratochvil, Emil J. W. (Helmholtz-Zentrum Berlin für Materialien und Energie GmbH)
Hermerschmidt, Felix (Institut für Physik, Institut für Chemie, Humboldt-Universität zu Berlin) |
Point of Contact
|
Use email button above to contact.
Ehjeij, Daniel (OCI, Universität Heidelberg) |
Description
| An increasing number of organic light-emitting diodes (OLEDs) is nowadays based on the use of polymers as the emissive material. For this material class in particular, solution-processing of the OLEDs has gained traction in both research and industry. However, in order to access multilayer material systems, orthogonal solvents must be used to prevent dissolution of previously prepared layers. The use of crosslinkers can facilitate this production method by reducing the number of orthogonal solvents needed, since insoluble networks are generated. In this work, a novel bisazide crosslinker is employed to insolubilize Super Yellow, a polyphenylene-vinylene emitter. This allows the use of an additional poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine (PTAA) electron blocking layer (EBL) from the same solvent. Devices including the blocking layer show improved efficacies compared to reference devices without the additional EBL, while also maintaining the emission spectrum. Using the upscalable technique of doctor blading, OLEDs were fabricated which showed a particularly noticeable effect of the blocking layer, with a nearly twofold increase in luminance and a 56 % increase in current efficacy. |
Subject
| Chemistry |
Keyword
| crosslinking
solution-processing
organic light-emitting diode
multilayer heterojunction |
Related Publication
| "Crosslinking Super Yellow to produce Super OLEDs: Crosslinking with Azides Enables Improved Performance", Journal of Polymer Science 2022, 60. // Please enter DOI + URL below// |
Language
| English |
Producer
| HySPRINT Innovation Lab (Helmholtz-Zentrum Berlin) (GEN_FAB) |
Production Location
| OCI Heidelberg |
Funding Information
| DFG: SFB 1249 |
Date of Collection
| Start Date: 2019-12-01 ; End Date: 2022-02-10 |
Data Type
| experimental data |
Software
| MestReNova by Mestrelab Research S.L, Version: 14.1.2-25024
JASCO Spectra ManagerTM II
OriginPro 2021, Version: 9.8.0.200 |