| abstract |
A carrier generation material is provided, which has a chemical structure of: n nwherein R 1 is hydrogen or alkyl group; each of R 2 is independently hydrogen, halogen, —CN, —CF 3 , —NO 2 , or alkyl group; each of R 3 is independently hydrogen, halogen, —CN, —CF 3 , —NO 2 , or alkyl group; R 4 is hydrogen, halogen, —CN, —CF 3 , —NO 2 , or alkyl group; R 5 is hydrogen, halogen, —CN, —CF 3 , —NO 2 , or alkyl group; R 6 is ═O, ═NH, or malononitrile group, and R 7 is hydrogen, halogen, —CN, —CF 3 , —NO 2 , or alkyl group. |