Ultrastable supramolecular self-encapsulated wide-bandgap conjugated polymers for large-area and flexible electroluminescent devices
Controlling chain behavior through smart molecular design provides the potential to develop ultrastable and efficient deep-blue light-emitting conjugated polymers (LCPs). Herein, a novel supramolecular self-encapsulation strategy is proposed to construct a robust ultrastable conjugated polydiarylflu...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
Wiley
2018
|
| _version_ | 1826264846742585344 |
|---|---|
| author | Lin, J Liu, B Yu, M Wang, X Lin, Z Zhang, X Sun, C Cabanillas-Gonzalez, J Xie, L Liu, F Ou, C Bai, L Han, Y Xu, M Zhu, W Smith, T Stavrinou, P Bradley, D Huang, W |
| author_facet | Lin, J Liu, B Yu, M Wang, X Lin, Z Zhang, X Sun, C Cabanillas-Gonzalez, J Xie, L Liu, F Ou, C Bai, L Han, Y Xu, M Zhu, W Smith, T Stavrinou, P Bradley, D Huang, W |
| author_sort | Lin, J |
| collection | OXFORD |
| description | Controlling chain behavior through smart molecular design provides the potential to develop ultrastable and efficient deep-blue light-emitting conjugated polymers (LCPs). Herein, a novel supramolecular self-encapsulation strategy is proposed to construct a robust ultrastable conjugated polydiarylfluorene (PHDPF-Cz) via precisely preventing excitons from interchain cross-transfer/coupling and contamination from external trace H2 O/O2 . PHDPF-Cz consists of a mainchain backbone where the diphenyl groups localize at the 9-position as steric bulk moieties, and carbazole (Cz) units localize at the 4-position as supramolecular π-stacked synthon with the dual functionalities of self-assembly capability and hole-transport facility. The synergistic effect of the steric bulk groups and π-stacked carbazoles affords PHDPF-Cz as an ultrastable property, including spectral, morphological stability, and storage stability. In addition, PHDPF-Cz spin-coated gelation films also show thickness-insensitive deep-blue emission with respect to the reference polymers, which are suitable to construct solution-processed large-scale optoelectronic devices with higher reproducibility. High-quality and uniform deep-blue emission is observed in large-area solution-processed films. The electroluminescence shows high-quality deep-blue intrachain emission with a CIE (0.16, 0.12) and a very narrow full width at half-maximum of 32 nm. Finally, large-area and flexible polymer light-emitting devices with a single-molecular excitonic behavior are also fabricated. The supramolecular self-encapsulation design provides an effective strategy to construct ultrastable LCPs for optoelectronic applications. |
| first_indexed | 2024-03-06T20:14:25Z |
| format | Journal article |
| id | oxford-uuid:2ba8ca03-9615-4ce9-b692-87d48c4c6eac |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:14:25Z |
| publishDate | 2018 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:2ba8ca03-9615-4ce9-b692-87d48c4c6eac2022-03-26T12:32:28ZUltrastable supramolecular self-encapsulated wide-bandgap conjugated polymers for large-area and flexible electroluminescent devicesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2ba8ca03-9615-4ce9-b692-87d48c4c6eacEnglishSymplectic Elements at OxfordWiley2018Lin, JLiu, BYu, MWang, XLin, ZZhang, XSun, CCabanillas-Gonzalez, JXie, LLiu, FOu, CBai, LHan, YXu, MZhu, WSmith, TStavrinou, PBradley, DHuang, WControlling chain behavior through smart molecular design provides the potential to develop ultrastable and efficient deep-blue light-emitting conjugated polymers (LCPs). Herein, a novel supramolecular self-encapsulation strategy is proposed to construct a robust ultrastable conjugated polydiarylfluorene (PHDPF-Cz) via precisely preventing excitons from interchain cross-transfer/coupling and contamination from external trace H2 O/O2 . PHDPF-Cz consists of a mainchain backbone where the diphenyl groups localize at the 9-position as steric bulk moieties, and carbazole (Cz) units localize at the 4-position as supramolecular π-stacked synthon with the dual functionalities of self-assembly capability and hole-transport facility. The synergistic effect of the steric bulk groups and π-stacked carbazoles affords PHDPF-Cz as an ultrastable property, including spectral, morphological stability, and storage stability. In addition, PHDPF-Cz spin-coated gelation films also show thickness-insensitive deep-blue emission with respect to the reference polymers, which are suitable to construct solution-processed large-scale optoelectronic devices with higher reproducibility. High-quality and uniform deep-blue emission is observed in large-area solution-processed films. The electroluminescence shows high-quality deep-blue intrachain emission with a CIE (0.16, 0.12) and a very narrow full width at half-maximum of 32 nm. Finally, large-area and flexible polymer light-emitting devices with a single-molecular excitonic behavior are also fabricated. The supramolecular self-encapsulation design provides an effective strategy to construct ultrastable LCPs for optoelectronic applications. |
| spellingShingle | Lin, J Liu, B Yu, M Wang, X Lin, Z Zhang, X Sun, C Cabanillas-Gonzalez, J Xie, L Liu, F Ou, C Bai, L Han, Y Xu, M Zhu, W Smith, T Stavrinou, P Bradley, D Huang, W Ultrastable supramolecular self-encapsulated wide-bandgap conjugated polymers for large-area and flexible electroluminescent devices |
| title | Ultrastable supramolecular self-encapsulated wide-bandgap conjugated polymers for large-area and flexible electroluminescent devices |
| title_full | Ultrastable supramolecular self-encapsulated wide-bandgap conjugated polymers for large-area and flexible electroluminescent devices |
| title_fullStr | Ultrastable supramolecular self-encapsulated wide-bandgap conjugated polymers for large-area and flexible electroluminescent devices |
| title_full_unstemmed | Ultrastable supramolecular self-encapsulated wide-bandgap conjugated polymers for large-area and flexible electroluminescent devices |
| title_short | Ultrastable supramolecular self-encapsulated wide-bandgap conjugated polymers for large-area and flexible electroluminescent devices |
| title_sort | ultrastable supramolecular self encapsulated wide bandgap conjugated polymers for large area and flexible electroluminescent devices |
| work_keys_str_mv | AT linj ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT liub ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT yum ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT wangx ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT linz ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT zhangx ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT sunc ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT cabanillasgonzalezj ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT xiel ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT liuf ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT ouc ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT bail ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT hany ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT xum ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT zhuw ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT smitht ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT stavrinoup ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT bradleyd ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices AT huangw ultrastablesupramolecularselfencapsulatedwidebandgapconjugatedpolymersforlargeareaandflexibleelectroluminescentdevices |