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Compound taking xanthene as core and application of compound
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A technology of xanthene and compound, which is applied in the field of semiconductors, can solve the problems of material stability decline, high drive ratio, high material cost, etc.
Inactive Publication Date: 2020-04-07
JIANGSU SUNERA TECH CO LTD
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The main reason is that on the one hand, the drive ratio of the blue light device is higher, and the material is easily subjected to thermal action to cause film phase separation; in addition, due to the high energy of the blue light, the stability of the material decreases, and the material is prone to decomposition.
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Embodiment 1
[0080] Embodiment 1: preparation compound 1
[0081]
[0082] Under nitrogenatmosphere, add 0.01mol intermediate C-1, 0.011mol 1-bromonaphthalene, 0.03mol potassiumcarbonate, 1×10 -4 mol Pd(PPh 3 )Cl 2 and 1×10 -4mol of triphenylphosphine, then add 120ml of toluene:ethanol:water=1:1:1 mixed solution, heat and reflux at 80-125°C for 24 hours, observe the reaction by TLC until the reaction is complete. Naturally cooled to room temperature, filtered, and the filtrate was rotary evaporated until there was no fraction. The resulting material was passed through a silica gel column (V 二氯甲烷 :V 石油醚 =1:5 mixed solvent as eluent) to obtain intermediate D-1.
[0093] Prepared according to the synthesis method of compound 1, except that intermediate G-2 is used instead of intermediate G-1, the purity of the obtained target product is 98.8%, and the yield is 75.1%.
[0094] Elemental analysis structure (molecular formula C 46 h 30 O): Theoretical: C, 92.28; H, 5.05; O, 2.67; Tested: C, 92.27; H, 5.05; O, 2.65.
[0095] ESI-MS(m / z)(M + ): The theoretical value is 598.23, and the measured value is 598.21.
Embodiment 3
[0096] Embodiment 3: preparation compound 21
[0097]
[0098] Prepared according to the synthesis method of compound 1, except that intermediate G-3 is used instead of intermediate G-1, the purity of the obtained target product is 98.8%, and the yield is 75.1%.
[0099] Elemental analysis structure (molecular formula C 56 h 34 o 2 ): Theoretical value: C, 91.03; H, 4.64; O, 4.33; Tested value: C, 91.02; H, 4.65O, 4.35.
[0100] ESI-MS(m / z)(M + ): The theoretical value is 738.26, and the measured value is 738.25.
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Abstract
The invention discloses a compound taking xanthene as a core and an application of the compound, belongs to the technical field of semiconductors, wherein the compound taking xanthene as the core hasthe structure represented by a general formula (1). The invention provides an application of the compound taking xanthene as the core. The compound taking xanthene as the core has relatively high carrier mobility and good carrier balance capability, and also has relatively high glass transition temperature and molecular thermal stability, and appropriate HOMO and LUMO energy levels. The compound is used as a main body material of a light-emitting layer and can generate a triplet state-triplet statecoupling effect, so that the utilization rate of a triplet state is effectively improved; a device structure based on the compound can effectively improve the efficiency and prolong the service life of an OLED device.
Description
technical field [0001] The invention relates to a compound with xanthene as the core and application thereof, belonging to the technical field of semiconductors. Background technique [0002] At present, OLED display technology has been applied in smart phones, tablet computers and other fields, and will further expand to large-size applications such as TVs. However, compared with actual product application requirements, the luminous efficiency and service life of OLED devices Further improvement is needed. The current research on improving the performance of OLED light-emitting devices includes: reducing the driving voltage of the device, improving the luminous efficiency of the device, and improving the service life of the device. In order to continuously improve the performance of OLED devices, continuous research and innovation of OLED photoelectric functional materials is required to create higher-performance OLED functional materials. [0003] In order to make high-p...
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