title: Comparison of tetraphenylmethane and tetraphenylsilane as core structures of high-triplet-energy hole- and electron-transport materials.
authors.affiliation: Department of polymer science and engineering, Dankook university, 126, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do, 448-701 Korea.
authors.forename: Chil Won
authors.initials: CW
authors.lastname: Lee
authors.forename: Jun Yeob
authors.initials: JY
authors.lastname: Lee