A New Kind of Buffer Layer of TiO2 Self-Assembled Material in Organic Electroluminescent Devices
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Abstract
A new kind of TiO2 self-assembled nanometer material has been fabricated and is used as a hole-injecting buffer layer in organic electroluminescent devices. The luminance and the efficiency of a device individually rises from 1500 cd/m2 to 5000 cd/m2 and from 2.0 cd/A to 3.92 cd/A at the current density of 100 mA/cm2. The enhancements in brightness and efficiency are attributed to an improved balance of hole and electron injections due to blocking of the injected holes by the buffer layer and a more homogeneous adhesion of the hole transporting layer to the anode.
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BAI Feng, DENG Zhen-Bo, ZHANG Meng-Xin, ZOU Wei-Yan, CAI Qiang. A New Kind of Buffer Layer of TiO2 Self-Assembled Material in Organic Electroluminescent Devices[J]. Chin. Phys. Lett., 2003, 20(3): 420-422.
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BAI Feng, DENG Zhen-Bo, ZHANG Meng-Xin, ZOU Wei-Yan, CAI Qiang. A New Kind of Buffer Layer of TiO2 Self-Assembled Material in Organic Electroluminescent Devices[J]. Chin. Phys. Lett., 2003, 20(3): 420-422.
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BAI Feng, DENG Zhen-Bo, ZHANG Meng-Xin, ZOU Wei-Yan, CAI Qiang. A New Kind of Buffer Layer of TiO2 Self-Assembled Material in Organic Electroluminescent Devices[J]. Chin. Phys. Lett., 2003, 20(3): 420-422.
|
BAI Feng, DENG Zhen-Bo, ZHANG Meng-Xin, ZOU Wei-Yan, CAI Qiang. A New Kind of Buffer Layer of TiO2 Self-Assembled Material in Organic Electroluminescent Devices[J]. Chin. Phys. Lett., 2003, 20(3): 420-422.
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