Efficient single-active-layer organic light-emitting diodes with fluoropolymer buffer layers

@article{Wang2006EfficientSO,
  title={Efficient single-active-layer organic light-emitting diodes with fluoropolymer buffer layers},
  author={Hua-Bo Wang and Linkai Wang and Zhaoxin Wu and Dai Zhang and J. Qiao and Y. Qiu and X. Wang},
  journal={Applied Physics Letters},
  year={2006},
  volume={88},
  pages={131113}
}
In the present Letter, efficient organic light-emitting diodes (OLEDs) with tris(8-hydroxyquinolino) aluminum (Alq3) as a single-active layer have been prepared by using a series of fluoropolymer buffer layers. The OLEDs with a 10-nm-thick poly(tetrafluroethylene-perfluoroalkylvinylethers) (PFA) buffer layer had a current efficiency of 4.46cd∕A at a current density of 2000A∕m2, whereas conventional double-layer OLEDs with N,N′-bis-(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB) and… Expand
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References

SHOWING 1-10 OF 18 REFERENCES
Bright single-active layer small-molecular organic light-emitting diodes with a polytetrafluoroethylene barrier
Single-layer organic light-emitting diodes (OLEDs) with a small molecule, tris(8-hydroxyquinoline) aluminum (Alq3) as the only active material, have been prepared. In order to achieve an efficientExpand
Efficient light emitting diodes with Teflon buffer layer
Abstract The polytetrafluoroethylene (Teflon) was utilized as buffer layer to improve the performance of organic light emitting diodes (OLEDs). In the ITO/Teflon/ N , N ′-diphenyl- N , NExpand
Efficient Organic Light-Emitting Diodes with Teflon As Buffer Layer
In this study, high-performance organic light-emitting diodes (OLEDs) with a buffer layer of polytetrafluoroethylene (Teflon) are demonstrated. Compared with copper phthalocyanine (CuPc), aExpand
A Blue Organic Light Emitting Diode
A blue organic light emitting diode (OLED) which has a structure like an SH-B type diode has been developed. The blue OLED consists of a hole-injection layer (m-MTDATA), a hole-transporting emissiveExpand
Small molecule organic light-emitting diodes can exhibit high performance without conventional hole transport layers
It is generally accepted that hole transport layers (HTLs) with thicknesses on the order of tens of nm are indispensable to the function of small molecule organic light-emitting diodes (OLEDs) ifExpand
Improved performance of the single-layer and double-layer organic light emitting diodes by nickel oxide coated indium tin oxide anode
The electrical and optical properties of the NiO films deposited under various conditions were first characterized. An ultra-thin layer of nickel oxide (NiO) was then deposited on the indium-tinExpand
Voltage reduction in organic light-emitting diodes
For practical applications, it is important to operate organic light-emitting devices at low voltages and low power consumption. When both the cathode and anode are perfectly injecting, low electronExpand
Multilayer White Light-Emitting Organic Electroluminescent Device
  • J. Kido, Masato Kimura, Katsutoshi Nagai
  • Medicine
  • Science
  • 1995
TLDR
The fabrication of a white light-emitting organic electroluminescent device made from vacuum-deposited organic thin films is reported, which was successfully obtained at low drive voltages such as 15 to 16 volts. Expand
Improved quantum efficiency for electroluminescence in semiconducting polymers
TLDR
The results imply that the exciton binding energy is weak, or that singlet bound states are formed with higher probability than triplets, in polymer light-emitting diodes, attained by blending electron transport materials with the conjugated polymer to improve the injection of electrons. Expand
Organic single-layer electroluminescent devices fabricated on CuOx-coated indium tin oxide substrate
Organic single-layer devices were fabricated by depositing tris(8-quinolinato)aluminum (ALQ) layer on CuOx-coated indium tin oxide (ITO) substrates. These organic single-layer devices showedExpand
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...