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Recent breakthroughs in quantum dot light-emitting devices (QD-LEDs) show their promise in the development of next-generation displays. However, the QD-LED with conventional ITO-based bottom emission structure is difficult to realize the high aperture ratio, electricfield-independent emission and flexible full-color displays. Hence, we demonstrate(More)
Ag/Ge/Ag (AGA) is investigated as a transparent cathode for top-emitting organic light-emitting devices (TEOLEDs). TEOLEDs of different colors with excellent performances can be gained by simply adopting a corresponding emitting layer, without changing the thickness of the device and cathode. Especially, the blue and white TEOLEDs exhibit high efficiency as(More)
White top-emitting organic light-emitting devices (TEOLEDs) with down-conversion phosphors are investigated from theory and experiment. The theoretical simulation was described by combining the microcavity model with the down-conversion model. A White TEOLED by the combination of a blue TEOLED with organic down-conversion phosphor(More)
Studies on phosphorescent organic light emitting devices (PhOLEDs) with phosphorescent emitter, fac-tris (2-phenylpyridine) iridium (Ir(ppy)(3)), show that the lifetime of triplet exciton is modified by surface plasmon coupling of Au nanoparticles (NPs). Interactions between the triplet exciton and gold (Au) nanoparticles (NPs) lead to a decrease in the(More)
Top-emitting white organic light-emitting devices (TEWOLEDs) with 1D metallic-dielectric photonic crystal (1D MDPC) as an anode are investigated. A quasi-periodic 1D MDPC anode allowed for fabrication of multiple-peak TEWOLEDs. A two-peak or three-peak TEWOLED was obtained by simply adjusting the thickness of the dielectric layers in the MDPC. The(More)
A non-doped-type white organic light-emitting device with high colour rendering index has been reported. The structure of the device is ITO/NPB (50 nm)/TPBI (3 nm)/Alq 3 (d nm)/DCM2 (0.1 nm)/TPBI (40 − d nm)/ Alq 3 (10 nm)/LiF/Al, where NPB is N, N-bis-(1-naphthyl)-N, N-diphenyl-1, 1-biph-enyl-4, 4-diamine, TPBI is 2, 2 , 2-(1, 3, 5-phenylene)(More)
The phase shift on the reflection from a semitransparent electrode of a top-emitting organic light-emitting device is utilized in this paper to realize a deep blue emission with high efficiency. The phase shift could be adjusted by changing the thickness of Alq(3) when it was deposited onto the semitransparent electrode of the device. Through simulation it(More)
Ultrasonic spray coating process (USCP) with high material -utilization, low manufacture costs and compatibility to streamline production has been attractive in researches on photoelectric devices. However, surface tension exists in the solvent is still a huge obstacle to realize smooth organic film for organic light emitting devices (OLEDs) by USCP. Here,(More)
Poly(vinylidene fluoride-trifluoroethylene) has been widely used as a dielectric of the ferroelectric organic field-effect transistor (FE-OFET) nonvolatile memory (NVM). Some critical issues, including low mobility and high operation voltage, existed in these FE-OFET NVMs, should be resolved before considering to their commercial application. In this paper,(More)