N,N-(Diphenylamino)Fluorenylstyrene Derivatives with the Various Heteroatom-Containing Moieties for Blue Organic Light-Emitting Diodes

作者：Lee Kum Hee; Seo Ji Hoon; Kim Young Kwan^*; Yoon Seung Soo

来源：Journal of Nanoscience and Nanotechnology, 2013, 13(3): 1808-1811.

DOI：10.1166/jnn.2013.6958

• Blue Fluorescence
• Diphenylaminofluorenestyryl Derivatives
• OLED
• Heteroatoms

A series of blue fluorescent materials 1-6 based on N, N-diphenyl aminofluorene styryl derivatives with six heteroatoms (PhOPh, PhSPh, PhSePh, PhPPh2, thiophene and dibenzothiophene), were synthesized and multilayer devices were fabricated. Interestingly, the EL efficiencies were very sensitive to the structural features of dopants in the emitting layers. Particularly, by using 1 as a dopant in emitting layer, a high-efficiency blue OLED was fabricated, showing the maximum luminance of 10420 cd/m(2) at 11 V, the luminous efficiency of 8.6 cd/A at 20 mA/cm(2), the power efficiency of 3.4 lm/W at 20 mA/cm(2) and had a blue color with the CIE coordinates of (0.147, 0.156) at 8.0 V.

• 出版日期2013-3