TY - JOUR
T1 - High efficiency red electrophosphorescent polymer light-emitting diode
AU - Chang, Chin Yu
AU - Hsieh, Sung Nien
AU - Wen, Ten Chin
AU - Guo, Tzung Fang
AU - Cheng, Chien Hong
N1 - Funding Information:
This work is partially funded by National Science Council in Taiwan (NSC 93-2214-E-006-025) and Center for Micro-Nano Technology of National Cheng Kung University (NCKU).
PY - 2006/1/25
Y1 - 2006/1/25
N2 - This work reports on the fabrication of an efficient polymer light-emitting device by applying iridium (Ir) complex, dibenzo[f,h]-quinoxaline iridium (acetylacetonate) [Ir(DBQ)2(acac)], as the phosphorescent dopant, poly(9-vinylcarbazole) as the matrix layer, and 2-(4-biphenylyl)-5-(4-tert- butyl-phenyl)-(1,3,4-oxadiazole) as the electron transport material. The trapping of charge carriers at the Ir(DBQ)2(acac) dopant sites dominates the electroluminescence (EL) of the devices. The device emits red electrophosphorescence centered at 610 nm, exclusively from the Ir dopant and an EL efficiency of 8.5 cd/A (1287 cd/m2) biased at 14.5 mA/cm 2.
AB - This work reports on the fabrication of an efficient polymer light-emitting device by applying iridium (Ir) complex, dibenzo[f,h]-quinoxaline iridium (acetylacetonate) [Ir(DBQ)2(acac)], as the phosphorescent dopant, poly(9-vinylcarbazole) as the matrix layer, and 2-(4-biphenylyl)-5-(4-tert- butyl-phenyl)-(1,3,4-oxadiazole) as the electron transport material. The trapping of charge carriers at the Ir(DBQ)2(acac) dopant sites dominates the electroluminescence (EL) of the devices. The device emits red electrophosphorescence centered at 610 nm, exclusively from the Ir dopant and an EL efficiency of 8.5 cd/A (1287 cd/m2) biased at 14.5 mA/cm 2.
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U2 - 10.1016/j.cplett.2005.10.002
DO - 10.1016/j.cplett.2005.10.002
M3 - Article
AN - SCOPUS:30344444005
SN - 0009-2614
VL - 418
SP - 50
EP - 53
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -