TY - JOUR
T1 - Roll-off characteristics of electroluminescence efficiency of organic blue electrophosphorescence diodes
AU - Son, Kyung Soo
AU - Yahiro, Masayuki
AU - Imai, Toshiro
AU - Yoshizaki, Hiroki
AU - Nishide, Junichi
AU - Sasabe, Hiroyuki
AU - Adachi, Chihaya
PY - 2008/9/12
Y1 - 2008/9/12
N2 - We studied the relaxation of electroluminescence roll-off characteristics by changing the dopant concentration and thickness of the emitting layer in organic blue electrophosphorescence diodes composed of a 2,6-dicarbazolo-1,5- pyridine host doped with iridium(III)-bis[(4,6-di-fluorophenyl)-pyridinato-N, C2]picolinate. Analyzing the roll-off characteristics using the theoretical models of triplet-triplet annihilation and triplet-polaron annihilation (TPA), we found that the roll-off characteristics of these devices were determined primarily by TPA.
AB - We studied the relaxation of electroluminescence roll-off characteristics by changing the dopant concentration and thickness of the emitting layer in organic blue electrophosphorescence diodes composed of a 2,6-dicarbazolo-1,5- pyridine host doped with iridium(III)-bis[(4,6-di-fluorophenyl)-pyridinato-N, C2]picolinate. Analyzing the roll-off characteristics using the theoretical models of triplet-triplet annihilation and triplet-polaron annihilation (TPA), we found that the roll-off characteristics of these devices were determined primarily by TPA.
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U2 - 10.1143/JJAP.47.7363
DO - 10.1143/JJAP.47.7363
M3 - Article
AN - SCOPUS:55149095925
SN - 0021-4922
VL - 47
SP - 7363
EP - 7365
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 9 PART 1
ER -