The embodiments of the present invention provide an organic electroluminescent device, a manufacturing method thereof and an electronic equipment. The organic electroluminescent device comprises: an anode layer, a hole transport layer, a first light emitting layer, a second light emitting layer, an electron transport layer, and a cathode layer stacked in sequence; wherein the first light emitting layer and the second light emitting layer comprise a same substrate material; the first light emitting layer and/or the second light emitting layer are doped such that a hole mobility of the first light emitting layer is equal to an electron mobility of the second light emitting layer. In the embodiments of the present invention, two light emitting layers with the same substrate material are applied, which can realize a balanced injection for electrons and holes, thereby improving the efficiency and lifetime of the organic electroluminescent device.

There are provided a photoelectric conversion element and a photoelectric conversion element module including the photoelectric conversion element, the photoelectric conversion element including a transparent substrate, a first and second transparent conductive layer arranged on the transparent substrate, a photoelectric conversion layer arranged on the first transparent conductive layer, a porous insulating layer covering the photoelectric conversion layer, a reflective layer arranged on the porous insulating layer, and a counter conductive layer that are arranged on the reflective layer, in which the photoelectric conversion layer contains a porous semiconductor, a carrier-transport material, and a photosensitizer, and in which an area of the orthogonal projection of the porous insulating layer onto the transparent substrate and an area of the orthogonal projection of the reflective layer onto the transparent substrate are each larger than an area of the orthogonal projection of the photoelectric conversion layer onto the transparent substrate.

Emissive devices are provided that include a phosphorescent emitter placed within a threshold distance of an enhancement layer to achieve transient lifetimes of 200 ns or less.

An organic electroluminescence device according to an embodiment of the present disclosure includes a first electrode, a second electrode, and an emission layer. The emission layer includes host compounds and dopant compounds. The hot compounds include a first host compound represented by Formula 1, and a second host compound represented by Formula 2, and the dopant compounds include an assistant dopant compound represented by Formula 3, and a light-emitting dopant compound represented by Formula 4: ##STR00001##
Accordingly, the organic electroluminescence device according to an embodiment may achieve high efficiency and long life.

A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.

The present invention relates to an electrochemical device, more particularly to an electrochemical device including a first electrode, a second electrode spaced apart from the first electrode and an electrolyte filled between the first electrode and the second electrode, wherein the electrolyte comprises a salt form of a carbon quantum dot anion and a metal cation having an average diameter in the range of 2 to 12 nanometers (nm) and a surface potential of ?20 mV or less, the present invention provides an electrochemical device dramatically improving reliability, performance and durability by adopting an carbon quantum dot ion compound electrolyte having selective ion conductivity with a specific cation and suppressing side reactions caused by electrolyte as well as applicable in liquid, gel or solid phase.

An organic electroluminescent device including at least one organic layer between a pair of electrodes, wherein the at least one organic layer includes a luminescent layer, at least one layer of the at least one organic layer includes at least one metal complex containing a tri- or higher-dentate ligand, and a compound represented by formula (I) is contained in an organic layer containing the metal complex and/or in other organic layer(s). In formula (I), R.sup.11 to R.sup.14 each independently represent a hydrogen atom or a substituent group, and at least one of R.sup.11 to R.sup.14 represents an aryl or heteroaryl group. ##STR00001##

Provided are a photoelectric conversion element including an electrically conductive support, a photoconductor layer, a charge transfer layer, and a counter electrode, in which the photoconductor layer has semiconductor fine particles carrying a metal complex dye represented by Formula (1), and at least one of metal complex dyes represented by Formulae (2) and (3), a dye-sensitized solar cell, a dye composition, and an oxide semiconductor electrode.

##STR00001##

In the formulae, M represents a metal ion. Ar.sup.11 to Ar.sup.14 each represent an aryl group or the like. L.sup.1 and L.sup.2 each represent an ethenylene group or the like. R.sup.11 to R.sup.14 each represent an alkyl group or the like. n.sup.11 and n.sup.12 each represent an integer of 0 to 3, and n.sup.13 and n.sup.14 each represent an integer of 0 to 4. X represents NCS or SCN. M.sup.1 and M.sup.2 each represent a proton, a metal cation, or a non-metal cation.

The present invention relates to a dye-sensitized solar cell electrode, and more particularly, to a dye-sensitized solar cell electrode capable of enhancing a bond between a dye and an oxide semiconductor to secure reliability and efficiency of a dye-sensitized solar cell.

There are provided a photoelectric conversion element and a photoelectric conversion element module including the photoelectric conversion element, the photoelectric conversion element including a transparent substrate, a transparent conductive layer arranged on the transparent substrate, a photoelectric conversion layer arranged on the transparent conductive layer, a porous insulating layer arranged in contact with the photoelectric conversion layer, a reflective layer arranged in contact with the porous insulating layer, and a catalyst layer and a counter conductive layer that are arranged on the reflective layer, in which the photoelectric conversion layer contains a porous semiconductor, a carrier-transport material, and a photosensitizer, and in which the area of the orthogonal projection of the porous insulating layer onto the transparent substrate and the area of the orthogonal projection of the reflective layer onto the transparent substrate are each larger than the area of the orthogonal projection of the photoelectric conversion layer onto the transparent substrate.