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Deep Blue Phosphorescent Organic Lightemitting Diodes With Very High Brightness and Efficiency

Written By mardi 12 juillet 2022 Add Comment Edit

Abstract

An electron-transport-type host was synthesized using a benzo[4,5]furo[3,2-d]pyrimidine (BFP) core to develop a high triplet energy host. The host was designed to have both the tetraphenylsilyl blocking group and the hole-transport-type carbazole group. In the device application, the host was used as an electron-transport-type host mixed with a hole-transport-type 3,3†-di(9H-carbazol-9-yl)-1,1†-biphenyl (mCBP) host in the blue phosphorescent organic light-emitting diodes (PhO-LEDs) doped with a [[5-(1,1-dimethylethyl)-3-phenyl-1H-imidazo[4,5-b]pyrazin-1-yl-2(3H)-ylidene]-1,2-phenylene]bis-[[6-(1,1-dimethylethyl)-3-phenyl-1H-imidazo[4,5-b]pyrazin-1-yl-2(3H)-ylidene]-1,2-phenylene]iridium (Ir(cb)3) blue phosphor. As a result, the mCBP:CzBFPmSi mixed host showed high external quantum efficiency over 20% at 1000 cd m−2 and low efficiency roll-off in the blue PhOLEDs.

References

  1. Tang CW, VanSlyke SA. Organic electroluminescent diodes. Appl Phys Lett, 1987, 51: 913–915

    CAS  Article  Google Scholar

  2. Mitschke U, Bäuerle P. The electroluminescence of organic materials. J Mater Chem, 2000, 10: 1471–1507

    CAS  Article  Google Scholar

  3. Müller CD, Falcou A, Reckefuss N, et al. Multi-colour organic light-emitting displays by solution processing. Nature, 2003, 421: 829–833

    Article  Google Scholar

  4. Reineke S, Lindner F, Schwartz G, et al. White organic light-emitting diodes with fluorescent tube efficiency. Nature, 2009, 459: 234–238

    CAS  Article  Google Scholar

  5. Uoyama H, Goushi K, Shizu K, et al. Highly efficient organic light-emitting diodes from delayed fluorescence. Nature, 2012, 492: 234–238

    CAS  Article  Google Scholar

  6. Zhang Q, Li B, Huang S, et al. Efficient blue organic light-emitting diodes employing thermally activated delayed fluorescence. Nat Photon, 2014, 8: 326–332

    CAS  Article  Google Scholar

  7. Baldo MA, O'Brien DF, You Y, et al. Highly efficient phosphorescent emission from organic electroluminescent devices. Nature, 1998, 395: 151–154

    CAS  Article  Google Scholar

  8. Baldo MA, Lamansky S, Burrows PE, et al. Very high-efficiency green organic light-emitting devices based on electrophosphorescence. Appl Phys Lett, 1999, 75: 4–6

    CAS  Article  Google Scholar

  9. Adachi C, Baldo MA, Thompson ME, et al. Nearly 100% internal phosphorescence efficiency in an organic light-emitting device. J Appl Phys, 2001, 90: 5048–5051

    CAS  Article  Google Scholar

  10. Adachi C, Baldo MA, Forrest SR, et al. High-efficiency red electro-phosphorescence devices. Appl Phys Lett, 2001, 78: 1622–1624

    CAS  Article  Google Scholar

  11. Lamansky S, Djurovich P, Murphy D, et al. Highly Phosphorescent biscyclometalated iridium complexes: synthesis, photophysical characterization, and use in organic light emitting diodes. J Am Chem Soc, 2001, 123: 4304–4312

    CAS  Article  Google Scholar

  12. Udagawa K, Sasabe H, Cai C, et al. Low-driving-voltage blue phosphorescent organic light-emitting devices with external quantum efficiency of 30%. Adv Mater, 2014, 26: 5062–5066

    CAS  Article  Google Scholar

  13. Lin N, Qiao J, Duan L, et al. Molecular understanding of the chemical stability of organic materials for OLEDs: A comparative study on sulfonyl, phosphine-oxide, and carbonyl-containing host materials. J Phys Chem C, 2014, 118: 7569–7578

    CAS  Article  Google Scholar

  14. Xu H, Chen R, Sun Q, et al. Recent progress in metal-organic complexes for optoelectronic applications. Chem Soc Rev, 2014, 43: 3259–3302

    CAS  Article  Google Scholar

  15. Cao S, Hao L, Lai WY, et al. Distinct phosphorescence enhancement of red-emitting iridium(III) complexes with formyl-functionalized phenylpyridine ligands. J Mater Chem C, 2016, 4: 4709–4718

    CAS  Article  Google Scholar

  16. Liu X, Yu Z, Yu M, et al. Iridium(III)-complexed polydendrimers for inkjet-printing OLEDs: The influence of solubilizing steric hindrance groups. ACS Appl Mater Interfaces, 2019, 11: 26174–26184

    CAS  Article  Google Scholar

  17. Jiang Y, Lv P, Pan JQ, et al. Low-threshold organic semiconductor lasers with the aid of phosphorescent Ir(III) complexes as triplet sensitizers. Adv Funct Mater, 2019, 29: 1806719

    Article  Google Scholar

  18. Chaskar A, Chen HF, Wong KT. Bipolar host materials: A chemical approach for highly efficient electrophosphorescent devices. Adv Mater, 2011, 23: 3876–3895

    CAS  Article  Google Scholar

  19. Jou JH, Kumar S, Agrawal A, et al. Approaches for fabricating high efficiency organic light emitting diodes. J Mater Chem C, 2015, 3: 2974–3002

    CAS  Article  Google Scholar

  20. Tao Y, Yang C, Qin J. Organic host materials for phosphorescent organic light-emitting diodes. Chem Soc Rev, 2011, 40: 2943–2970

    CAS  Article  Google Scholar

  21. Dias FB, Bourdakos KN, Jankus V, et al. Triplet harvesting with 100% efficiency by way of thermally activated delayed fluorescence in charge transfer OLED emitters. Adv Mater, 2013, 25: 3707–3714

    CAS  Article  Google Scholar

  22. Im Y, Byun SY, Kim JH, et al. Recent progress in high-efficiency blue-light-emitting materials for organic light-emitting diodes. Adv Funct Mater, 2017, 27: 1603007

    Article  Google Scholar

  23. Sasabe H, Kido J. Development of high performance OLEDs for general lighting. J Mater Chem C, 2013, 1: 1699–1707

    CAS  Article  Google Scholar

  24. Lee J, Chen HF, Batagoda T, et al. Deep blue phosphorescent organic light-emitting diodes with very high brightness and efficiency. Nat Mater, 2016, 15: 92–98

    CAS  Article  Google Scholar

  25. Maheshwaran A, Sree VG, Park HY, et al. High efficiency deep-blue phosphorescent organic light-emitting diodes with CIE x, y (≤ 0.15) and low efficiency roll-off by employing a high triplet energy bipolar host material. Adv Funct Mater, 2018, 28: 1802945

    Article  Google Scholar

  26. Burrows PE, Padmaperuma AB, Sapochak LS, et al. Ultraviolet electroluminescence and blue-green phosphorescence using an organic diphosphine oxide charge transporting layer. Appl Phys Lett, 2006, 88: 183503

    Article  Google Scholar

  27. Padmaperuma AB, Sapochak LS, Burrows PE. New charge transporting host material for short wavelength organic electrophosphorescence: 2,7-bis(diphenylphosphine oxide)-9,9-dimethylfluorene. Chem Mater, 2006, 18: 2389–2396

    CAS  Article  Google Scholar

  28. Vecchi PA, Padmaperuma AB, Qiao H, et al. A dibenzofuran-based host material for blue electrophosphorescence. Org Lett, 2006, 8: 4211–4214

    CAS  Article  Google Scholar

  29. Chen HF, Yang SJ, Tsai ZH, et al. 1,3,5-triazine derivatives as new electron transport-type host materials for highly efficient green phosphorescent OLEDs. J Mater Chem, 2009, 19: 8112–8118

    CAS  Article  Google Scholar

  30. Hung WY, Chiang PY, Lin SW, et al. Balance the carrier mobility to achieve high performance exciplex OLED using a triazine-based acceptor. ACS Appl Mater Interfaces, 2016, 8: 4811–4818

    CAS  Article  Google Scholar

  31. Inomata H, Goushi K, Masuko T, et al. High-efficiency organic electro-phosphorescent diodes using 1,3,5-triazine electron transport materials. Chem Mater, 2004, 16: 1285–1291

    CAS  Article  Google Scholar

  32. Jung M, Lee KH, Lee JY, et al. A bipolar host based high triplet energy electroplex for an over 10 000 h lifetime in pure blue phosphorescent organic light-emitting diodes. Mater Horiz, 2020, 7: 559–565

    CAS  Article  Google Scholar

  33. Kim DS, Lee KH, Lee JY. Novel positive polaron stabilizing n-type host for high efficiency and long lifetime in blue phosphorescent organic light-emitting diodes. ACS Appl Mater Interfaces, 2020, 12: 19737–19745

    CAS  Article  Google Scholar

  34. Jeon SK, Lee HL, Yook KS, et al. Recent progress of the lifetime of organic light-emitting diodes based on thermally activated delayed fluorescent material. Adv Mater, 2019, 31: 1803524

    Article  Google Scholar

Download references

Acknowledgements

This work was supported by the Korea Institute for Advancement of Technology (KIAT) and the Ministry of Trade, Industry and Energy of Korea (P0017363 and 20012622).

Author information

Authors and Affiliations

  1. School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do, 16419, Republic of Korea

    Junsu Ha, Junseop Lim & Jun Yeob Lee

Contributions

Author contributions Lee JY and Ha J designed, synthesized and analyzed the CzBFPmSi host used in this study. Lim J fabricated the devices. The manuscript was prepared by Ha J and Lee JY. All authors reviewed and approved the final manuscript.

Corresponding author

Correspondence to Jun Yeob Lee.

Ethics declarations

Conflict of interest The authors declare that they have no conflict of interest.

Additional information

Supplementary information Experimental details and supporting data are available in the online version of the paper.

Junsu Ha received his Bachelor degree (2019) from the Department of Polymer Science and Engineering, Inha University, Korea. His main research areas are the synthesis of high-triplet-energy hosts for high efficiency and long device lifetime in the blue phosphorescent organic light-emitting diodes.

Jun Yeob Lee received his PhD degree from Seoul National University, Korea in 1998. After postdoc at Rensselaer Polytechnic Institute (1998–1999), he joined Samsung SDI and developed active matrix organic light emitting diodes for six years. After that, he worked as a professor at the Department of Polymer Science and Engineering, Dankook University, and he has been a professor at the School of Chemical Engineering, Sungkyunkwan University since 2015. His main research areas are the synthesis of organic electronic materials and development of novel device structure for organic electronic devices.

Supporting Information

40843_2021_1807_MOESM1_ESM.pdf

A Novel benzo[4,5]furo[3,2-d]pyrimidine-based Host as a N-type Host for blue Phosphorescent Organic Light-Emitting Diodes

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Ha, J., Lim, J. & Lee, J.Y. A novel benzo[4,5]furo[3,2-d]pyrimidine-based host as a n-type host for blue phosphorescent organic light-emitting diodes. Sci. China Mater. 65, 1028–1033 (2022). https://doi.org/10.1007/s40843-021-1807-x

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  • DOI : https://doi.org/10.1007/s40843-021-1807-x

Keywords

  • blue device
  • host
  • efficiency
  • lifetime

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