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Jayabharathi J, Ramanathan P, Karunakaran C, et al. Fused Methoxynaphthyl Phenanthrimidazole Semiconductors as Functional Layer in High Efficient OLEDs. J Fluoresc. 2015;26(1):307-16doi: 10.1007/s10895-015-1715-x.
Jayabharathi, J., Ramanathan, P., Karunakaran, C., & Thanikachalam, V. (2016). Fused Methoxynaphthyl Phenanthrimidazole Semiconductors as Functional Layer in High Efficient OLEDs. Journal of fluorescence, 26(1), 307-16. https://doi.org/10.1007/s10895-015-1715-x
Jayabharathi, Jayaraman, et al. "Fused Methoxynaphthyl Phenanthrimidazole Semiconductors as Functional Layer in High Efficient OLEDs." Journal of fluorescence vol. 26,1 (2016): 307-16. doi: https://doi.org/10.1007/s10895-015-1715-x
Jayabharathi J, Ramanathan P, Karunakaran C, Thanikachalam V. Fused Methoxynaphthyl Phenanthrimidazole Semiconductors as Functional Layer in High Efficient OLEDs. J Fluoresc. 2016 Jan;26(1):307-16. doi: 10.1007/s10895-015-1715-x. Epub 2015 Nov 19. PMID: 26585347.
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J Fluoresc. 2016 Jan;26(1):307-16. doi: 10.1007/s10895-015-1715-x. Epub 2015 Nov 19.

Fused Methoxynaphthyl Phenanthrimidazole Semiconductors as Functional Layer in High Efficient OLEDs.

Journal of fluorescence

Jayaraman Jayabharathi, Periyasamy Ramanathan, Chockalingam Karunakaran, Venugopal Thanikachalam

Affiliations

  1. Department of Chemistry, Annamalai University, Tamilnadu, Annamalainagar, 608002, India. [email protected].
  2. Department of Chemistry, Annamalai University, Tamilnadu, Annamalainagar, 608002, India.

PMID: 26585347 DOI: 10.1007/s10895-015-1715-x

Abstract

Efficient hole transport materials based on novel fused methoxynaphthyl phenanthrimidazole core structure were synthesised and characterized. Their device performances in phosphorescent organic light emitting diodes were investigated. The high thermal stability in combination with the reversible oxidation process made promising candidates as hole-transporting materials for organic light-emitting devices. Highly efficient Alq3-based organic light emitting devices have been developed using phenanthrimidazoles as functional layers between NPB [4,4-bis(N-(1-naphthyl)-N-phenylamino)biphenyl] and Alq3 [tris(8-hydroxyquinoline)aluminium] layers. Using the device of ITO/NPB/4/Alq3/LiF/Al, a maximum luminous efficiency of 5.99 cd A(-1) was obtained with a maximum brightness of 40,623 cd m(-2) and a power efficiency of 5.25 lm W(-1).

Keywords: Hole-transporting materials; OLED device; Phenanthrimidazole; TG-DTA

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