TY - JOUR
T1 - Improving the performance of organic light-emitting diodes containing BCP/LiF/Al by thermal annealing
AU - Sun, J. X.
AU - Zhu, X. L.
AU - Yu, X. M.
AU - Peng, H. J.
AU - Wong, M.
AU - Kwok, H. S.
PY - 2006/6
Y1 - 2006/6
N2 - In this paper, we examined the effect of post-packaging annealing on the performance of organic light-emitting diodes containing tris-(S-hydroxyquinoline) aluminum (Alq3) or 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP) in direct contact with a LiF-Al bilayer cathode. The detailed electroluminescent (EL) characteristics were compared before and after annealing at 70°C for 5 hrs. It was found that better luminous efficiency as well as greater power efficiency could be achieved for devices with BCP/LiF/Al structure. However, other devices consisting of Alq3/LiF/Al were less affected. It is believed that the thermal treatment helps to enhance the electron injection for the former, and less helpful for the latter.
AB - In this paper, we examined the effect of post-packaging annealing on the performance of organic light-emitting diodes containing tris-(S-hydroxyquinoline) aluminum (Alq3) or 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP) in direct contact with a LiF-Al bilayer cathode. The detailed electroluminescent (EL) characteristics were compared before and after annealing at 70°C for 5 hrs. It was found that better luminous efficiency as well as greater power efficiency could be achieved for devices with BCP/LiF/Al structure. However, other devices consisting of Alq3/LiF/Al were less affected. It is believed that the thermal treatment helps to enhance the electron injection for the former, and less helpful for the latter.
KW - Annealing
KW - Light-emitting diodes (LEDs)
KW - Organic
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000207089400006
UR - https://openalex.org/W2103613017
UR - https://www.scopus.com/pages/publications/33744730796
U2 - 10.1109/JDT.2006.872304
DO - 10.1109/JDT.2006.872304
M3 - Journal Article
SN - 1551-319X
VL - 2
SP - 138
EP - 142
JO - IEEE/OSA Journal of Display Technology
JF - IEEE/OSA Journal of Display Technology
IS - 2
ER -