32results about How to "Significant effect of improving lifespan" patented technology

The invention discloses an organic electroluminescent device containing a ketone and a nitrogen heterocyclic compound. The device includes a hole transport layer, a light-emitting layer, and an electron transport layer. The compound, the structural formula of the compound is shown in general formula (1). The material containing ketones and nitrogen heterocyclic rings in the present invention has a smaller triplet and singlet energy difference, so it is easy to realize energy transfer between host and guest materials, so that the energy originally lost in the form of heat can be easily used, and the light-emitting layer can be improved. Radiation transition efficiency, so that it is easier to obtain high efficiency of the device, and further, when the dopant material is selected as a fluorescent material, it is easier to obtain the luminescent radiation of the dopant material, so that it is easier to obtain a long life of the material.

The invention discloses an organic electroluminescent device containing a diaryl ketone compound and its application. The device includes a hole transport layer, a light-emitting layer, and an electron transport layer. The material of the light-emitting layer of the device includes diaryl ketone-containing Compound, the structural formula of the compound is shown in the general formula (1). Because the diaryl ketone group material of the present invention has a smaller energy difference between the triplet state and the singlet state, it is easy to realize the energy transfer between the host and guest materials, so that the energy originally lost in the form of heat is easy to be used, and the radiation of the light-emitting layer is improved. Transition efficiency, so that it is easier to obtain high efficiency of the device, and further, when the dopant material is selected as a fluorescent material, it is easier to obtain the luminescent radiation of the dopant material, so that it is easier to obtain a long life of the material.

The invention discloses an organic electroluminescent device containing 10,10-diaryl anthrone compound and its application. The device comprises a hole transport layer, a light emitting layer and an electron transport layer. The material of the light emitting layer of the device contains 10 , 10-diaryl anthrone as the core group of the compound, the structural formula of the compound is shown in the general formula (1). The material with 10,10-diaryl anthrone as the core group in the present invention has a small triplet and singlet energy difference, so it is easy to realize the energy transfer between the host and guest materials, so that the energy that is originally lost in the form of heat The energy is easy to use, so it is easier to obtain high efficiency of the device, and further, when the dopant material is selected as a fluorescent material, it is easier to obtain the luminescent radiation of the dopant material, so it is easier to obtain the long life of the material.

The invention discloses an organic electroluminescent device containing a double-substituent-9-fluorenone compound and its application. The device comprises a hole transport layer, a light-emitting layer, and an electron transport layer. The material of the light-emitting layer of the device is a double-substituted The compound of base-9-fluorenone group, structural formula is as shown in general formula (1). The disubstituent-9-fluorenone group compound used in the present invention is easy to realize the energy transfer between the host and guest materials because it has a small triplet and singlet energy difference, so that the energy originally dissipated in the form of heat is easy to obtain and utilize. Therefore, it is easier to obtain high efficiency of the device, and further, when the dopant material is selected as a fluorescent material, it is easier to obtain the luminescent radiation of the dopant material, so that it is easier to obtain a long life of the material.

The invention discloses an organic electroluminescent device and its application. The device comprises a hole transport layer, a light emitting layer and an electron transport layer. The material of the light emitting layer of the device comprises 1,8-diaza-9-fluorenone group The compound of group, described compound structural formula is as shown in general formula (1). Because the 1,8-diaza-9-fluorenone material of the present invention has a small energy difference between the triplet state and the singlet state, it is easy to realize energy transfer between the host and guest materials, so that the energy originally dissipated in the form of heat is easily It can be used to improve the radiative transition efficiency of the light-emitting layer, so that it is easier to obtain high efficiency of the device. Further, when the 1,8-diaza-9-fluorenone compound material is directly used as a doping material, or 1,8 When a diaza-9-fluorenone compound is used as the host material and a fluorescent material is selected as the dopant material, it is easier to obtain the luminescent radiation of the doped material, and thus it is easier to obtain the long life of the material.

The invention discloses an organic electroluminescence device containing acridine spiroanthrone compound, the device includes a hole transport layer, a light emitting layer, and an electron transport layer, and the material of the light emitting layer of the device includes a group containing acridine spiro anthrone The compound, the structural formula of the compound is shown in general formula (1). Because the acridine spiroanthrone group material of the present invention has a small energy difference between the triplet state and the singlet state, it is easy to realize the energy transfer between the host and guest materials, so that the energy originally lost in the form of heat is easy to be used, and the light-emitting layer can be improved. Radiation transition efficiency, so that it is easier to obtain high efficiency of the device, and further, when the dopant material is selected as a fluorescent material, it is easier to obtain the luminescent radiation of the dopant material, so that it is easier to obtain a long life of the material.

The invention discloses an organic electroluminescent device containing a single-substituent-9-fluorenone compound and its application. The device comprises a hole transport layer, a light-emitting layer, and an electron transport layer. The material of the light-emitting layer of the device contains a single The compound of the substituent 9-fluorenone group has a structural formula as shown in general formula (1). The single substituent-9-fluorenone group compound used in the present invention is easy to realize the energy transfer between the host and guest materials because of the small triplet and singlet energy difference, so that the energy originally dissipated in the form of heat is easy to obtain and utilize. Therefore, it is easier to obtain high efficiency of the device, and further, when the dopant material is selected as a fluorescent material, it is easier to obtain the luminescent radiation of the dopant material, so that it is easier to obtain a long life of the material.

The invention discloses an organic electroluminescent device containing triazine and ketone compounds and its application. The device comprises a hole transport layer, a light emitting layer and an electron transport layer. The compound of the core group, the structural formula of the compound is shown in the general formula (1). The material with triazine and ketone as the core group in the present invention has a small triplet and singlet energy difference, so it is easy to realize the energy transfer between the host and guest materials, so that the energy originally lost in the form of heat is easy to be used. Improve the radiative transition efficiency of the light-emitting layer, so that it is easier to obtain high efficiency of the device, and further, when the dopant material is selected as a fluorescent material, it is easier to obtain the luminescent radiation of the dopant material, so that it is easier to obtain the long life of the material.

The invention discloses an organic electroluminescent device containing 9,10-anthraquinone compounds and its application. The device includes a hole transport layer, a light-emitting layer, and an electron transport layer. The material of the light-emitting layer of the device includes 9,10 -The compound of anthraquinone group, the structural formula is as shown in general formula (1). The 9,10-anthraquinone group materials used in the present invention are easy to realize the energy transfer between the host and guest materials because of the small triplet and singlet energy difference, so that the energy originally dissipated in the form of heat is easy to be utilized, thereby It is easier to obtain high efficiency of the device. Further, when the 9,10-anthraquinone compound material is directly used as a dopant material, or the 9,10-anthraquinone compound is used as the host material, the fluorescent material is selected as the doping material When the material is used, it is easier to obtain the luminescent radiation of the doped material, and thus it is easier to obtain the long life of the material.

The invention discloses an organic electroluminescent device containing xanthone compounds and its application. The device comprises a hole transport layer, a light-emitting layer and an electron transport layer. The material of the light-emitting layer of the device contains xanthones as The compound of the core group, the structural formula of the compound is shown in the general formula (1). The material with xanthone as the core group in the present invention has a smaller triplet and singlet energy difference, so it is easy to realize the energy transfer between the host and guest materials, so that the energy originally lost in the form of heat is easy to be used. Therefore, it is easier to obtain high efficiency of the device, and further, when the dopant material is selected as a fluorescent material, it is easier to obtain the luminescent radiation of the dopant material, so that it is easier to obtain a long life of the material.