| abstract |
Provided is a composition comprising a compound having structure (I) wherein each of A 1 , A 2 , A 3 , A 4 , A 5 , A 6 , A 7 , and A 8 is independently CR 12 or N; wherein one to four of A 1 , A 2 , A 3 , A 4 , A 5 , A 6 , A 7 , and A 8 are N; wherein J 1 is C or Si; wherein J 2 is C(R 13 ) n , O, (C(R 13 ) n ) 2 , S, NR 13 , or Se; wherein n is 1 or 2; wherein each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , and R 13 is independently H, deuterium, or an organic group. Also provided is a method of making the composition, a method of making an organic light-emitting diode using the composition, and an organic light-emitting diode made by that method. |