TY - JOUR
T1 - Efficient blue phosphorescent OLEDs employing novel oligocarbazoles as high-triplet-energy host materials
AU - Tsai, Ming Han
AU - Hong, Yun Hua
AU - Chang, Chih Hao
AU - Su, Hai-Ching
AU - Wu, Chung Chih
AU - Matoliukstyte, Ausra
AU - Simokaitiene, Jurate
AU - Grigalevicius, Saulius
AU - Grazulevicius, Juozas V.
AU - Hsu, Chao Ping
PY - 2007
Y1 - 2007
N2 - A series of 3(6),9'-linked oligocarbazoles with large triplet energies and morphological stability are reported as host materials for electrophosphorescence. In such oligocarbazoles, the triplet excitation is confined within one carbazole unit, leading to a new molecular design strategy for large-triplet-energy and high morphological stability hosts. Using these hosts, efficient blue phosphorescent OLEDs having efficiencies up to 15%, 31 cd/A and 28 Im/W are demonstrated.
AB - A series of 3(6),9'-linked oligocarbazoles with large triplet energies and morphological stability are reported as host materials for electrophosphorescence. In such oligocarbazoles, the triplet excitation is confined within one carbazole unit, leading to a new molecular design strategy for large-triplet-energy and high morphological stability hosts. Using these hosts, efficient blue phosphorescent OLEDs having efficiencies up to 15%, 31 cd/A and 28 Im/W are demonstrated.
UR - http://www.scopus.com/inward/record.url?scp=34547857487&partnerID=8YFLogxK
U2 - 10.1889/1.2785420
DO - 10.1889/1.2785420
M3 - Conference article
AN - SCOPUS:34547857487
SN - 0097-966X
VL - 38
SP - 772
EP - 775
JO - Digest of Technical Papers - SID International Symposium
JF - Digest of Technical Papers - SID International Symposium
IS - 1
T2 - 2007 SID International Symposium
Y2 - 23 May 2007 through 25 May 2007
ER -