Anthracene derivative, and light-emitting material, light-emitting element, light-emitting device, and electronic device using the same
an anthracene derivative and derivative technology, applied in the direction of discharge tube luminescnet screens, natural mineral layered products, organic chemistry, etc., to achieve the effect of reducing the band gap, achieving high color purity, and achieving efficient results
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embodiment mode 1
[0082]In this embodiment mode, the anthracene derivatives of the present invention will be described.
[0083]The anthracene derivatives of the present invention are each represented by general formula (9) described below.
[0084]
[0085]In the general formula (9), A1 represents a substituted or unsubstituted phenyl group, B1 represents any of an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted phenyl group, α represents any of a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenyl-4,4′-diyl group, and R1 to R9 individually represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted phenyl group.
[0086]In the general formula (9), in the case where A1 has a substituent, it is preferable that the substituent be an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a phenyl group, or a biphenyl group. As examples of the alkyl group having 1 to 4 carbon atoms, ...
embodiment mode 2
[0120]In Embodiment Mode 2, one mode of a light-emitting element using the anthracene derivative of the present invention will be described using FIG. 1.
[0121]The light-emitting element of the present invention includes a plurality of layers between a pair of electrodes. The plurality of layers is a stack of layers each including a highly carrier injecting substance or a highly carrier transporting substance, combined such that a light emission region should be formed away from the electrodes, i.e., such that carriers should be recombined in a region away from the electrodes.
[0122]In this embodiment mode, the light-emitting element includes a first electrode 101, a second electrode 103, and a layer 102 including an organic compound provided between the first electrode 101 and the second electrode 103. Note that, for description of this embodiment mode, hereinafter, the first electrode 101 functions as an anode and the second electrode 103 functions as a cathode. That is, for the des...
embodiment mode 3
[0152]In this embodiment mode, a light-emitting element having a structure different from that described in Embodiment Mode 2 will be described.
[0153]The structure in which the anthracene derivative of the present invention is dispersed into another substance in the light-emitting layer 113 described in Embodiment Mode 2 can provide light emission the anthracene derivative of the present invention. With the anthracene derivative of the present invention which emits blue light, a light-emitting element which emits blue light can be provided.
[0154]Here, as the substance in which the anthracene derivative of the present invention is dispersed, various materials can be used other than the substance having a high hole-transporting property or the substance having a high electron-transporting property described in Embodiment Mode 2, and the following can be given as examples thereof: 4,4′-di(N-carbazolyl)biphenyl (CBP), 2,2(,2((-(1,3,5-benzenetriyl)tris(1-phenyl-1H-benzimidazole) (TPBI), ...
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Abstract
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