TY - JOUR
T1 - Carrier transport properties of organic materials for EL device operation
AU - Naka, Shigeki
AU - Okada, Hiroyuki
AU - Onnagawa, Hiroyoshi
AU - Yamaguchi, Yoshihisa
AU - Tsutsui, Tetsuo
N1 - Funding Information:
This work was partly supported by Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Cooperation (JST).
PY - 2000/6/1
Y1 - 2000/6/1
N2 - We have measured drift mobilities in vacuum deposited films of tris(8-quinolinolato)aluminum (Alq3), a triphenylamine derivative (TPD) and a naphtyl-substituted benzidine derivative (α-NPD) using a time-of-flight (TOF) technique. The hole mobilities of TPD and α-NPD are about two orders of magnitude higher than the electron mobility of Alq3. This implies that the current density versus applied voltage characteristics is dominated by the electron mobility of Alq3 rather than the hole mobility of TPD or α-NPD in double-layered devices ITO/TPD or α-NPD (50 nm)/Alq3 (50 nm)/MgAg.
AB - We have measured drift mobilities in vacuum deposited films of tris(8-quinolinolato)aluminum (Alq3), a triphenylamine derivative (TPD) and a naphtyl-substituted benzidine derivative (α-NPD) using a time-of-flight (TOF) technique. The hole mobilities of TPD and α-NPD are about two orders of magnitude higher than the electron mobility of Alq3. This implies that the current density versus applied voltage characteristics is dominated by the electron mobility of Alq3 rather than the hole mobility of TPD or α-NPD in double-layered devices ITO/TPD or α-NPD (50 nm)/Alq3 (50 nm)/MgAg.
UR - http://www.scopus.com/inward/record.url?scp=0033699781&partnerID=8YFLogxK
U2 - 10.1016/S0379-6779(99)00358-6
DO - 10.1016/S0379-6779(99)00358-6
M3 - 会議記事
AN - SCOPUS:0033699781
SN - 0379-6779
VL - 111
SP - 331
EP - 333
JO - Synthetic Metals
JF - Synthetic Metals
T2 - 2nd International Conference on Electroluminescence of Molecular Materials and Related Phenomena (ICEL-2)
Y2 - 15 May 1999 through 18 May 1999
ER -