Efficient Pure Blue Hyperfluorescence Devices Utilizing Quadrupolar Donor-acceptor-donor Type of Thermally Activated Delayed Fluorescence Sensitizers

Overview

Journal Nat Commun

Specialty Biology

Date 2023 Jan 25

PMID 36697409

Authors

Hyuna Lee

Ramanaskanda Braveenth

Subramanian Muruganantham

Chae Yeon Jeon

Hyun Seung Lee

Jang Hyuk Kwon

Affiliations

Soon will be listed here.

Abstract

The hyperfluorescence (HF) system has drawn great attention in display technology. However, the energy loss mechanism by low reverse intersystem crossing rate (k) and the Dexter energy transfer (DET) channel is still challenging. Here, we demonstrate that this can be mitigated by the quadrupolar donor-acceptor-donor (D-A-D) type of thermally activated delayed fluorescence (TADF) sensitizer materials, DBA-DmICz and DBA-DTMCz. Further, the HF device with DBA-DTMCz and ν-DABNA exhibited 43.9% of high maximum external quantum efficiency (EQE) with the Commission Internationale de l'Éclairage coordinates of (0.12, 0.16). The efficiency values recorded for the device are among the highest reported for HF devices. Such high efficiency is assisted by hindered DET process through i) high k, and ii) shielded lowest unoccupied molecular orbital with the presence of two donors in D-A-D type of skeleton. Our current study provides an effective way of designing TADF sensitizer for future HF technology.

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References

Hatakeyama T, Shiren K, Nakajima K, Nomura S, Nakatsuka S, Kinoshita K . Ultrapure Blue Thermally Activated Delayed Fluorescence Molecules: Efficient HOMO-LUMO Separation by the Multiple Resonance Effect. Adv Mater. 2016; 28(14):2777-81. DOI: 10.1002/adma.201505491. View

Samanta P, Kim D, Coropceanu V, Bredas J . Up-Conversion Intersystem Crossing Rates in Organic Emitters for Thermally Activated Delayed Fluorescence: Impact of the Nature of Singlet vs Triplet Excited States. J Am Chem Soc. 2017; 139(11):4042-4051. DOI: 10.1021/jacs.6b12124. View

Jakoby M, Heidrich S, Graf von Reventlow L, Degitz C, Madayanad Suresh S, Zysman-Colman E . Method for accurate experimental determination of singlet and triplet exciton diffusion between thermally activated delayed fluorescence molecules. Chem Sci. 2021; 12(3):1121-1125. PMC: 8179038. DOI: 10.1039/d0sc05190j. View

Furukawa T, Nakanotani H, Inoue M, Adachi C . Dual enhancement of electroluminescence efficiency and operational stability by rapid upconversion of triplet excitons in OLEDs. Sci Rep. 2015; 5:8429. PMC: 4325339. DOI: 10.1038/srep08429. View

Cravcenco A, Ye C, Grafenstein J, Borjesson K . Interplay between Förster and Dexter Energy Transfer Rates in Isomeric Donor-Bridge-Acceptor Systems. J Phys Chem A. 2020; 124(36):7219-7227. DOI: 10.1021/acs.jpca.0c05035. View

Zhang D, Song X, Gillett A, Drummond B, Jones S, Li G . Efficient and Stable Deep-Blue Fluorescent Organic Light-Emitting Diodes Employing a Sensitizer with Fast Triplet Upconversion. Adv Mater. 2020; 32(19):e1908355. DOI: 10.1002/adma.201908355. View

Naqvi B, Schmid M, Crovini E, Sahay P, Naujoks T, Rodella F . What Controls the Orientation of TADF Emitters?. Front Chem. 2020; 8:750. PMC: 7500207. DOI: 10.3389/fchem.2020.00750. View

Wong M, Zysman-Colman E . Purely Organic Thermally Activated Delayed Fluorescence Materials for Organic Light-Emitting Diodes. Adv Mater. 2017; 29(22). DOI: 10.1002/adma.201605444. View

Yang Z, Mao Z, Xie Z, Zhang Y, Liu S, Zhao J . Recent advances in organic thermally activated delayed fluorescence materials. Chem Soc Rev. 2017; 46(3):915-1016. DOI: 10.1039/c6cs00368k. View

10.

Kim J, Park I, Chan C, Tanaka M, Tsuchiya Y, Nakanotani H . Nanosecond-time-scale delayed fluorescence molecule for deep-blue OLEDs with small efficiency rolloff. Nat Commun. 2020; 11(1):1765. PMC: 7156453. DOI: 10.1038/s41467-020-15558-5. View

11.

Ko I, Lee H, Park J, Kim G, Lampande R, Pode R . An accurate measurement of the dipole orientation in various organic semiconductor films using photoluminescence exciton decay analysis. Phys Chem Chem Phys. 2019; 21(13):7083-7089. DOI: 10.1039/c9cp00965e. View

12.

Uoyama H, Goushi K, Shizu K, Nomura H, Adachi C . Highly efficient organic light-emitting diodes from delayed fluorescence. Nature. 2012; 492(7428):234-8. DOI: 10.1038/nature11687. View

13.

Jung Y, Karthik D, Lee H, Maeng J, Yang K, Hwang S . A New BODIPY Material for Pure Color and Long Lifetime Red Hyperfluorescence Organic Light-Emitting Diode. ACS Appl Mater Interfaces. 2021; 13(15):17882-17891. DOI: 10.1021/acsami.1c03175. View

14.

Zhang D, Song X, Cai M, Duan L . Blocking Energy-Loss Pathways for Ideal Fluorescent Organic Light-Emitting Diodes with Thermally Activated Delayed Fluorescent Sensitizers. Adv Mater. 2017; 30(6). DOI: 10.1002/adma.201705250. View

15.

Kim K, Lee S, Moon C, Kim S, Park Y, Lee J . Phosphorescent dye-based supramolecules for high-efficiency organic light-emitting diodes. Nat Commun. 2014; 5:4769. DOI: 10.1038/ncomms5769. View

16.

Zhang Y, Wei J, Zhang D, Yin C, Li G, Liu Z . Sterically Wrapped Multiple Resonance Fluorophors for Suppression of Concentration Quenching and Spectrum Broadening. Angew Chem Int Ed Engl. 2021; 61(2):e202113206. DOI: 10.1002/anie.202113206. View

17.

Nakanotani H, Higuchi T, Furukawa T, Masui K, Morimoto K, Numata M . High-efficiency organic light-emitting diodes with fluorescent emitters. Nat Commun. 2014; 5:4016. DOI: 10.1038/ncomms5016. View

18.

Lim H, Cheon H, Woo S, Kwon S, Kim Y, Kim J . Highly Efficient Deep-Blue OLEDs using a TADF Emitter with a Narrow Emission Spectrum and High Horizontal Emitting Dipole Ratio. Adv Mater. 2020; 32(47):e2004083. DOI: 10.1002/adma.202004083. View

19.

Tenopala-Carmona F, Lee O, Crovini E, Neferu A, Murawski C, Olivier Y . Identification of the Key Parameters for Horizontal Transition Dipole Orientation in Fluorescent and TADF Organic Light-Emitting Diodes. Adv Mater. 2021; 33(37):e2100677. PMC: 11468900. DOI: 10.1002/adma.202100677. View

20.

Schmidbauer S, Hohenleutner A, Konig B . Chemical degradation in organic light-emitting devices: mechanisms and implications for the design of new materials. Adv Mater. 2013; 25(15):2114-29. DOI: 10.1002/adma.201205022. View