| 摘要 |
PCT No. PCT/JP92/00835 Sec. 371 Date Feb. 3, 1993 Sec. 102(e) Date Feb. 3, 1993 PCT Filed Jul. 2, 1992 PCT Pub. No. WO93/01252 PCT Pub. Date Jan. 21, 1993.An organic electroluminescence device including an oxadiazole or thiadiazole compound interposed between two electrons. The compound is of the formula <IMAGE> <IMAGE> +TR <IMAGE> wherein Z1 and Z2 are each an unsubstituted or substituted aromatic group; Y1 and Y2 are each an unsubstituted or substituted aromatic group; Q is -O-, -CH2-, -CH2-CH2-; or -C(CH3)2; and X is -O- or -S-. The organic electroluminescence device has a high brightness, a high luminous efficiency and a long service life.
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