Blue Organic Light-Emitting Diodes Based on Triphenylene Derivatives 


Vol. 34,  No. 8, pp. 2267-2270, Aug.  2013
10.5012/bkcs.2013.34.8.2267


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  Abstract

A series of blue fluorescent emitters based on triphenylene derivatives were synthesized via the Diels -Alder reaction in moderate yields. The electronic absorption and emission characteristics of the new functional materials were affected by the nature of the substituent on the triphenylene nucleus. Multilayered OLEDs were fabricated with a device structure of: ITO/NPB (50 nm)/EML (30 nm)/Bphen (30 nm)/Liq (2.0 nm)/Al (100 nm). All devices showed efficient blue emissions. Among those, a device using 1 gives the best performances with a high brightness (978 cd m−2 at 8.0 V) and high efficiencies (a luminous efficiency of 0.80 cd/A, a power efficiency of 0.34 lm/W and an external quantum efficiency of 0.73% at 20 mA/cm2). The peak wavelength of the electroluminescence was 455 nm with CIEx,y coordinates of (0.17, 0.14) at 8.0 V.

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  Cite this article

[IEEE Style]

S. O. Kim, H. S. Jang, S. J. Lee, Y. K. Kim, S. S. Yoon, "Blue Organic Light-Emitting Diodes Based on Triphenylene Derivatives," Bulletin of the Korean Chemical Society, vol. 34, no. 8, pp. 2267-2270, 2013. DOI: 10.5012/bkcs.2013.34.8.2267.

[ACM Style]

Seul Ong Kim, Heung Soo Jang, Seok Jae Lee, Young Kwan Kim, and Seung Soo Yoon. 2013. Blue Organic Light-Emitting Diodes Based on Triphenylene Derivatives. Bulletin of the Korean Chemical Society, 34, 8, (2013), 2267-2270. DOI: 10.5012/bkcs.2013.34.8.2267.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949