TY - JOUR
T1 - Organic light-emitting diode with liquid emitting layer
AU - Xu, Denghui
AU - Adachi, Chihaya
N1 - Funding Information:
This work was supported by Nissan Chemical Co. and a Grant-in-Aid for the global COE Program, “Science for Future Molecular Systems,” from the Ministry of Education, Culture, Sports and Technology of Japan.
PY - 2009
Y1 - 2009
N2 - We demonstrate an original organic light-emitting diode (OLED) having a neat liquid host of 9-(2-ethylhexyl)carbazole (EHCz) doped with a guest emitter of 5,6,11,12-tetraphenylnapthacene (rubrene). The device structure is composed of indium tin-oxide (ITO)/poly(3,4-ethylenedioxythiophene): poly(styrenesulphonate)/EHCz:rubrene/ Cs2 CO3 /ITO. We demonstrate that the liquid organic semiconducting layer surely transports charge carriers, leading to electroluminescence from rubrene with the highest external quantum efficiency of ηext =0.03% at a current density of 0.26 mA/cm2. Our demonstration of the liquid-OLEDs will open another possibility of organic semiconductors and light-emitting applications.
AB - We demonstrate an original organic light-emitting diode (OLED) having a neat liquid host of 9-(2-ethylhexyl)carbazole (EHCz) doped with a guest emitter of 5,6,11,12-tetraphenylnapthacene (rubrene). The device structure is composed of indium tin-oxide (ITO)/poly(3,4-ethylenedioxythiophene): poly(styrenesulphonate)/EHCz:rubrene/ Cs2 CO3 /ITO. We demonstrate that the liquid organic semiconducting layer surely transports charge carriers, leading to electroluminescence from rubrene with the highest external quantum efficiency of ηext =0.03% at a current density of 0.26 mA/cm2. Our demonstration of the liquid-OLEDs will open another possibility of organic semiconductors and light-emitting applications.
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U2 - 10.1063/1.3200947
DO - 10.1063/1.3200947
M3 - Article
AN - SCOPUS:68349152545
VL - 95
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 5
M1 - 053304
ER -