TY - JOUR
T1 - The synthesis, characterization and electroluminescent properties of zinc(II) complexes for single-layer organic light-emitting diodes
AU - Zeng, He Ping
AU - Wang, Guang Rong
AU - Zeng, Gong Chang
AU - Li, Jing
N1 - Funding Information:
Financial support from the National Natural Science Foundation of China (Nos.: 20671036, 2006A10801002, 2007A010500008 and 2008B010800030) is gratefully acknowledged. JL is a Cheung Kong Scholar associated with SCUT.
PY - 2009/11
Y1 - 2009/11
N2 - (E)-2-(2-(9-p-tolyl-9H-carbazol-3-yl)vinyl)-8-hydroxyl-quinoline, (E)-2-(2-(9-(4-methoxyphenyl)-9H-carbazol-3-yl)vinyl)-8-hydroxyquinoline and their respective zinc(II) complexes were synthesized and their structures confirmed using UV-vis, FT-IR, ESI-MS, FAB-MS, 1H NMR and elemental analysis. The two Zn(II) complexes displayed high thermal stability with thermal decomposition temperatures of 422 °C and 410 °C, respectively. Photoluminescence spectra revealed that the complexes possessed maximum emissions at 575 and 570 nm, respectively, in the green region. Single-layer, organic light-emitting diodes built using these complexes emitted yellow light, as a result of a red-shift, with maximum luminances of 489 cd/m2 and 402 cd/m2 as well as luminance efficiencies of 0.41 cd A-1 and 1.81 cd A-1, respectively.
AB - (E)-2-(2-(9-p-tolyl-9H-carbazol-3-yl)vinyl)-8-hydroxyl-quinoline, (E)-2-(2-(9-(4-methoxyphenyl)-9H-carbazol-3-yl)vinyl)-8-hydroxyquinoline and their respective zinc(II) complexes were synthesized and their structures confirmed using UV-vis, FT-IR, ESI-MS, FAB-MS, 1H NMR and elemental analysis. The two Zn(II) complexes displayed high thermal stability with thermal decomposition temperatures of 422 °C and 410 °C, respectively. Photoluminescence spectra revealed that the complexes possessed maximum emissions at 575 and 570 nm, respectively, in the green region. Single-layer, organic light-emitting diodes built using these complexes emitted yellow light, as a result of a red-shift, with maximum luminances of 489 cd/m2 and 402 cd/m2 as well as luminance efficiencies of 0.41 cd A-1 and 1.81 cd A-1, respectively.
KW - 8-Hydroxyquinoline derivative
KW - Carbazole derivative
KW - Electroluminescence
KW - Fluorescence spectra
KW - Organic light-emitting diode (OLED)
KW - Zinc(II) complex
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U2 - 10.1016/j.dyepig.2009.03.003
DO - 10.1016/j.dyepig.2009.03.003
M3 - Article
AN - SCOPUS:67649361329
VL - 83
SP - 155
EP - 161
JO - Dyes and Pigments
JF - Dyes and Pigments
SN - 0143-7208
IS - 2
ER -