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We reported a blue phosphorescent organic light-emitting diode (OLED) with the highest current efficiency of 55.2 cd/A, power efficiency of 50.5 lm/W and external quantum efficiency (EQE) of 24.8%, by using a tetraphenylsilane host in the emitting layer doped with blue emitter, bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium(in) (FIrpic).
The two novel benzimidazole/carbazole hybrid ambipolar molecules, o-CbzDiBz and m-CbzDiBz, were synthesized as hosts for blue PHOLEDs. Bis[2-(4,6-diiluorophenyl)pyridinato-C2,N](picolinato)iridium(III) (FIrpic)-based devices can achieve 41.86 and 49.31 cd/A of current efficiency in o-CbzDiBz and m-CbzDiBz matrix, respectively.
In this work, we demonstrated an inverted planar heterojunction organic photovoltaic (OPV) device with boron subphthalocyanine (SubPc) material. In this device, ZnO was used as the electron extraction layer, which was coated with ethoxylated polyethylenimine (PEIE) for smoothen the ZnO surface. Open circuit voltage of this OPV can be as high as 1.36 eV, which is close to the theoretical limit of SubPc-based...
We have demonstrated a small molecule organic solar cell with a novel electron donor material based on donor-acceptor-acceptor (D-A-A) backbone. In such a device, 2.32%, 0.92 V, and 4.80 mA/cm2 in power conversion efficiency, open circuit voltage, and short circuit current density, respectively, was achieved with planar mix bulk heterojunction structure combined with C60 as the electron acceptor.
Organic bifunctional device with solar absorption and red emission abilities have been realized by using a amorphous electron donor, bis(naphthylphenylaminophenyl) fumaronitrile (NPAFN). NPAFN exhibits a high hole drift mobility greater than 0.07 cm2/Vs as determined by organic field-effect transistor. The NPAFN device showed high power conversion efficiency of 2.1% under 1-sun AM1.5G illumination...
The stamping process of self-assembled monolayers (SAMs) with polydimethylsiloxane (PDMS) mold on the Ag electrode was demonstrated, for use as the anode of a top-emission organic light-emitting device (OLED) and the cathode of an organic photovoltaic (OPV) device stacked underneath. Such SAMs reduce the barrier for hole injection from the Ag to the hole-transport layer of OLED. The PDMS mold coated...
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