Abstract:
An organic light emitting diode device comprising: a light emitting layer or layers combining both an emissive material comprising a boron subphthalocyanine, or first emitting layer component, that emits substantially orange light; and an emissive material emitting blue light, or second emitting layer component; wherein in combination, the first emitting layer component and the second emitting layer component, in combination, produces an overall white or near-white light emission.
Abstract:
Organic photovoltaic (OPV) devices are disclosed. An exemplary device has first and second electrodes and an organic, photovoltaically active zone located between the first and second electrodes. The photovoltaically active zone includes an organic electron-donor material and an organic electron-acceptor material. The electron-donor material includes one or more trivalent- or tetravalent-metal phthalocyanines with alkylchalcogenide ring substituents, and is soluble in at least one organic solvent. This solubility facilitates liquid-processability of the donor material, including formation of thin-films, on an unlimited scale to form planar and bulk heterojunctions in organic OPVs. These donor materials are photovoltaically active in both visible and near-IR wavelengths of light, enabling more of the solar spectrum, for example, to be applied to producing electricity. Also disclosed are methods for producing the metalated phthalocyanines and actual devices.
Abstract:
Top-gate, bottom-contact organic thin film transistors are provided. The transistors may include metal bilayer electrodes to aid in charge movement within the device. In an embodiment, an organic transistor includes a drain electrode and a source electrode disposed over a first region of a substrate, a transition metal oxide layer disposed over and in direct physical contact with the drain electrode and the source electrode, an organic preferentially hole conducting channel layer disposed over the metal oxide and between the drain electrode and the source electrode, and a gate electrode disposed over the channel.
Abstract:
Described is an apparatus forming complementary tunneling field effect transistors (TFETs) using oxide and/or organic semiconductor material. One type of TFET comprises: a substrate; a doped first region, formed above the substrate, having p-type material selected from a group consisting of Group III-V, IV-IV, and IV of a periodic table; a doped second region, formed above the substrate, having transparent oxide n-type semiconductor material; and a gate stack coupled to the doped first and second regions. Another type of TFET comprises: a substrate; a doped first region, formed above the substrate, having p-type organic semiconductor material; a doped second region, formed above the substrate, having n-type oxide semiconductor material; and a gate stack coupled to the doped source and drain regions. In another example, TFET is made using organic only semiconductor materials for active regions.
Abstract:
The present invention relates to a donor substrate and a method of manufacturing a light-emitting device. The donor substrate includes a reflective layer including an opening portion, a light absorption layer covering the opening portion of the reflective layer over the reflective layer, a heat insulating layer including an opening portion in a position overlapped with the opening portion of the reflective layer over the light absorption layer, and a material layer including a light-emitting material covering the opening portion of the heat insulating layer over the heat insulating layer. A target substrate and the donor substrate are disposed to face each other, and an EL layer is formed over the target substrate by performing light irradiation from a rear surface of the donor substrate.
Abstract:
The present invention provides conjugated side-strapped phthalocyanines and methods for producing and using the same. In one particular embodiment, the conjugated side-strapped phthalocyanine is of the formula: where each of the substituents are defined herein.
Abstract:
An organic light emitting diode display includes a p-doped layer that can obtain high efficiency at low-voltage driving and low current and prevent leakage current by differentially forming the p-doped layer for each pixel.
Abstract:
A conjugated polymer layer with a built-in diode is formed by providing a first metal-chalcogenide layer over a bottom electrode. Subsequently, a second metal-chalcogenide layer is provided over and in contact with the first metal-chalcogenide layer. The first metal-chalcogenide layer has a first conductivity type and the second metal-chalcogenide layer has a second conductivity type. The plane of contact between the first and second metal-chalcogenide layers creates the p-n junction of the built-in diode. Then a polymer layer is selectively deposited on the second metal-chalcogenide layer. The second metal-chalcogenide layer provides ions to the polymer layer to change its resistivity. A top electrode is then provided over the polymer layer. An exemplary memory cell may have the following stacked structure: first electrode/n-type semiconductor/p-type semiconductor/conjugated polymer/second electrode.
Abstract:
An organic photoelectronic device includes a first electrode having a plurality of nanopatterns arranged at a regular interval, a second electrode facing the first electrode and an active layer between the first electrode and the second electrode, the active layer absorbing light in at least one wavelength of a visible ray region.
Abstract:
An organic device has a hole current-electron current conversion layer which comprises a laminate of an electron transportation section and a hole transportation section. The electron transportation section includes a charge transfer complex formed upon an oxidation-reduction reaction between a reduced low work function metal and an electron-accepting organic compound, the reduced metal being produced upon an in-situ thermal reduction reaction caused upon contact, through lamination or mixing by co-deposition, of an organic metal complex compound or an inorganic compound containing at least one metal ion selected from ions of low work function metals having a work function of not more than 4.0 eV, and a thermally reducible metal capable of reducing a metal ion contained in the organic metal complex compound or the inorganic compound in vacuum to the corresponding metal state, and the electron transportation section having the electron-accepting organic compound in the state of radical anions. The hole transportation section includes an organic compound having an ionization potential of less than 5.7 eV and an electron-donating property and an inorganic or organic substance capable of forming a charge transfer complex upon its oxidation-reduction reaction with the organic compound, the organic compound and the inorganic or organic substance being contacted through lamination or mixing, and the electron-donating organic compound is in the state of radical cations.