Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
권호 표지
DOI QR코드

DOI QR Code

Recent Research Highlights in Blue Fluorescent Emitters in Organic Light-Emitting Diodes

유기발광 다이오드(OLED) 및 이를 위한 청색형광체

  • Park, Young Il (Research Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology) ;
  • Kim, Jin Chul (Research Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology) ;
  • Seo, Bongkuk (Research Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology) ;
  • Cho, Deug-Hee (Research Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology)
  • 박영일 (한국화학연구원 그린정밀화학연구센터) ;
  • 김진철 (한국화학연구원 그린정밀화학연구센터) ;
  • 서봉국 (한국화학연구원 그린정밀화학연구센터) ;
  • 조득희 (한국화학연구원 그린정밀화학연구센터)
  • Received : 2014.05.08
  • Published : 2014.06.10
Download PDF
⟨ Previous Next ⟩

Abstract

Organic light emitting diodes (OLEDs) received much attention from both academia and industry as the next-generation flat panel displays. However, to produce high quality OLEDs, there are still many challenges to overcome. Especially, in full color OLEDs, the intrinsic wide band gap of the blue emitting materials results in inferior efficiency compared to those of green and red emitting materials. Therefore, extensive research efforts have been devoted to develop efficient blue emitting materials. This review briefly summarizes the basics of OLEDs and introduces highlights of research efforts in blue-emitting materials.

유기발광 다이오드(Organic light emitting diodes)는 차세대 평판디스플레이로 학문적으로나 산업적으로 많은 관심을 받고 있다. 그러나 고성능 유기발광 다이오드의 생산을 위해서는 극복해야 할 많은 과제들이 여전히 남아있다. 그중 청색발광물질은 자체의 넓은 밴드갭으로 인해 녹색과 적색 발광재료에 비해 낮은 효율을 보이고 있다. 그러므로 많은 사람들이 높은 효율을 가진 청색 발광물질을 개발하기 위해 많은 노력을 기울이고 있다. 따라서 본 논문에서는 유기발광 다이오드의 기본개념과 청색 발광물질의 개발에 대해 간략하게 소개하였다.

Keywords

References

  1. C. L. Ho and W. Y. Wong, Small-molecular blue phosphorescent dyes for organic light-emitting devices, New J. Chem., 37, 1665-1683 (2013). https://doi.org/10.1039/c3nj00170a
  2. G. J. Zhou, W. Y. Wong, and X. Yang, New design tactics in OLEDs using functionalized 2-phenylpyridine-type cyclometalates of iridium(III) and platinum(II), Chem. Asian J., 6, 1706-1727 (2011). https://doi.org/10.1002/asia.201000928
  3. K. T. Kamtekar, A. P. Monkman, and M. R. Bryce, Recent Advances in White Organic Light-Emitting Materials and Devices (WOLEDs), Adv. Mater., 22, 572-582 (2010). https://doi.org/10.1002/adma.200902148
  4. M. Pope, H. Kallmann, and P. Magnate, Electroluminescence in Organic Crystals, J. Chem. Phys., 38, 2042-2043 (1963). https://doi.org/10.1063/1.1733929
  5. W. Helfrich and W. G. Schneider, Recombination Radiation in Anthracene Crystals, Phys. Rev. Lett., 14, 229-231 (1965). https://doi.org/10.1103/PhysRevLett.14.229
  6. Y. S. Yao, Q. X. Zhou, X. S. Wang, Y. Wang, and B. W. Zhang, Fine tuning of the photophysical and electroluminescent properties of DCM-type dyes by changing the structure of the electron-donating group, J. Mater. Chem., 16, 3512-3520 (2006). https://doi.org/10.1039/b604563d
  7. B. J. Jung, J. I. Lee, H. Y. Chu, L. M. Do, J. M. Lee, and H. K. Shim, A new family of bis-DCM based dopants for red OLEDs, J. Mater. Chem., 15, 2470-2475 (2005). https://doi.org/10.1039/b419408j
  8. M. Cocchi, D. Virgili, V. Fattori, D. L. Rochester, and J. A. G. Williams, N^C^N-Coordinated Platinum(II) Complexes as Phosphorescent Emitters in High-Performance Organic Light-Emitting Devices, Adv. Funct. Mater., 17, 285-289 (2007). https://doi.org/10.1002/adfm.200600167
  9. K. T. Kamtekar, C. Wang, S. Bettington, A. S. Batsanov, I. F. Perepichka, M. R. Bryce, J. H. Ahn, M. Rabinal, and M. C. Petty, New electroluminescent bipolar compounds for balanced chargetransport and tuneable colour in organic light emitting diodes: triphenylamine-oxadiazole-fluorene triad molecules, J. Mater. Chem., 16, 3823-3835 (2006). https://doi.org/10.1039/b604543j
  10. B. Kim, Y. Park, J. Lee, D. Yokoyama, J. H. Lee, J. Kido, and J. Park, Synthesis and electroluminescence properties of highly efficient blue fluorescence emitters using dual core chromophores, J. Mater. Chem. C, 1, 432-440 (2013). https://doi.org/10.1039/c2tc00185c
  11. S. K. Kim, B. Yang, Y. Ma, J. H. Lee, and J. W. Park, Exceedingly efficient deep-blue electroluminescence from new anthracenes obtained using rational molecular design, J. Mater. Chem., 18, 3376-3384 (2008). https://doi.org/10.1039/b805062g
  12. H. K. Kim, S. H. Cho, J. R. Oh, Y. H. Lee, J. H. Lee, J. G. Lee, S. K. Kim, Y. I. Park, J. W. Park, and Y. R. Do, Deep blue, efficient, moderate microcavity organic light-emitting diodes, Organic Electronics, 11, 137-145 (2010). https://doi.org/10.1016/j.orgel.2009.10.011
  13. Q. X. Tong, S. L. Lai, M. Y. Chan, Y. C. Zhou, H. L. Kwong, C. S. Lee, and S. T. Lee, Highly efficient blue organic light-emitting device based on a Nondoped electroluminescent material, Chem. Mater., 20, 6310-6312 (2008). https://doi.org/10.1021/cm801304t
  14. Y. J. Pu, M. Higashidate, K. I. Nakayama, and J. Kido, Solution-processable organic fluorescent dyes for multicolor emission in organic light emitting diodes, J. Mater. Chem., 18, 4183-4188 (2008). https://doi.org/10.1039/b806160b
  15. L. Ying, Y. Xu, W. Yang, L. Wang, H. Wu, and Y. Cao, Efficient red-light-emitting diodes based on novel amino-alkyl containing electrophosphorescent polyfluorenes with Al or Au as cathode, Organic Electronics, 10, 42-47 (2009). https://doi.org/10.1016/j.orgel.2008.10.001
  16. Z. Wang, H. Shao, J. Ye, L. Zhang, and P. Lu, Substituent Effects on Crosslike Packing of 2', 7'-Diaryl- spiro (cyclopropane-1,9' -fluorene) Derivatives: Synthesis and Crystallographic, Optical, and Thermal Properties, Adv. Funct. Mater., 17, 253-263 (2007). https://doi.org/10.1002/adfm.200600314
  17. C. Hosokawa, H. Higashi, H. Nakamura, and T. Kusumoto, Highly efficient blue electroluminescence from a distyrylarylene emitting layer with a new dopant, Appl. Phys. Lett., 67, 3853-3855 (1995). https://doi.org/10.1063/1.115295
  18. T. A. Ali, G. W. Jones, and W. E. Howard, Dual doped high $T_g$ white organic light emitting devices on silicon, Proc. Soc. Information Display, 35, 1012-1015 (2004).
  19. J. Shi and C. W. Tang, Anthracene derivatives for stable blue-emitting organic electroluminescence devices, Appl. Phys. Lett., 80, 3201-3203 (2000).
  20. W. J. Shen, B. Banumathy, H. H. Chen, and C. H. Chen, Sterically hindered blue host emitters based on anthracene, in Proc. Int. Display Manufacturing Conf., Taipei, Taiwan, 741 (2003).
  21. M. H. Ho, Y. S. Wu, S. W. Wen, M. T. Lee, T. M. Chen, C. H. Chen, K. C. Kwok, S. K. So, K. T. Yeung, and Z. Q. Gao, Highly efficient deep blue organic electroluminescent device based on 1-methyl-9,10-di(1-naphthyl)anthracene, Appl. Phys. Lett., 89, 252903-1-252903-3 (2006). https://doi.org/10.1063/1.2409367
  22. B. C. J. Tonzola, A. P. Kulkarni, A. P. Gifford, W. Kaminsky, and S. A. Jenekhe, Blue-Light-Emitting Oligoquinolines: Synthesis, Properties, and High-Efficiency Blue-Light-Emitting Diodes, Adv. Funct. Mater., 17, 863-874 (2007). https://doi.org/10.1002/adfm.200600542
  23. S. Tao, Y. Zhou, C. S. Lee, S. T. Lee, D. Huang, and X. Zhang, Highly Efficient Nondoped Blue Organic Light-Emitting Diodes Based on Anthracene-Triphenylamine Derivatives, J. Phys. Chem. C, 112, 14603-14606 (2008). https://doi.org/10.1021/jp803957p
  24. Z. Jiang, H. Yao, Z. Liu, C. Yang, C. Zhong, J. Qin, G. Yu, and Y. Liu, Bent Ladder-Type Hexaphenylene with Carbazole Core and Spiro Linkage as Stable and Efficient Blue Emitter, Org. Lett., 11, 4132-4135 (2009). https://doi.org/10.1021/ol901635v

Cited by

  1. 4-Pyridyl-9,9′-spirobifluorenes as Host Materials for Green and Sky-Blue Phosphorescent OLEDs vol.119, pp.11, 2015, https://doi.org/10.1021/jp511385f