CN107098931B - Multi-functional amphipathic conjugated molecular material of one kind and the preparation method and application thereof - Google Patents

Multi-functional amphipathic conjugated molecular material of one kind and the preparation method and application thereof Download PDF

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CN107098931B
CN107098931B CN201710390851.5A CN201710390851A CN107098931B CN 107098931 B CN107098931 B CN 107098931B CN 201710390851 A CN201710390851 A CN 201710390851A CN 107098931 B CN107098931 B CN 107098931B
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赖文勇
黄维
王梦
王梦一
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Nanjing Post and Telecommunication University
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Abstract

The invention discloses a kind of multi-functional amphipathic conjugated molecular materials and the preparation method and application thereof, the material is made of the fluorenes and pyrene substance of High Efficiency Luminescence, phosphonate ester selects the linear molecule compound of different alkyl chains as polarity side group, and general structure is shown below:Wherein, R is one of C1-C30 alkyl, alkoxy, alkane phenyl, alkane phenoxy group, aryl.Advantages that the material has that chemical structure is simple, synthesis cost is cheap etc., while there are good solution processability energy, filming performance and multifunctional light electrical characteristics, can be used as multifunctional material and meanwhile realize high brightness blue emission and efficient embellishing cathode interface.Using the material simultaneously as the Organic Light Emitting Diode of luminescent layer and boundary layer, excellent photoelectric characteristic can be realized by solution processes or inkjet printing mode using simplified device architecture, overcome the production obstacle in conventional multilayer device.

Description

Multi-functional amphipathic conjugated molecular material of one kind and the preparation method and application thereof
Technical field
The invention belongs to photoelectric materials and applied technical field, and in particular to a kind of multi-functional amphipathic conjugated molecular material and Preparation method and application.
Background technique
Organic Light Emitting Diode (OLED) has been widely used for full color flat panel display, solid state lighting and large area flexible The fields such as electronic device.Due to its significant progress on materials chemistry and device physics, vacuum with multi-layer structure is heavy Product small molecule OLED comes into business application.However, vacuum deposition method manufacturing process is complicated, at high cost and stock utilization It is low.In addition, the use of shadow mask limits scalability and resolution ratio of the device in vapor deposition processes.In contrast, The OLED of solution processing has been received significant attention with the material use of its cost-effective manufacture and low loss.
Solution processing is a kind of simple and cheap method, is more suitable for the large-scale production of OLED, includes spin coating, leaching The processing technologys such as painting, blade coating, inkjet printing, intaglio printing and silk-screen printing.Wherein inkjet printing is a kind of promising Technology is conducive to patterning because saving material, convenient for production large area film.Although light emitting polymer is deemed applicable to spray Ink print, but the charge unbalance problem in the impurity in polymer and the device based on polymer may will be greatly reduced efficiency And the service life.In contrast, small molecule structure is clear, is easy to purify, it is easier to realize practical efficient stable device.Cause This, it is quite attractive and in demand for manufacturing small molecule OLED by inkjet printing.
However, the small molecule OLED of ink jet printing is challenging.On the one hand, commercially common OLED small molecule Solubility and film form are all very poor usually in solution processes.On the other hand, due to interface attack phenomenon, it is difficult to be printed by ink-jet Brush building multilayer device structure, which is injected and transmitted with balancing charge, obtains Efficient devices.Therefore, exploitation has multi-functional characteristic Novel printable OLED material has especially important meaning to simplify device architecture.
Summary of the invention
Technical problem: the present invention provides a kind of multi-functional amphipathic conjugated molecular material and the preparation method and application thereof, To solve current solution processing OLED device, structure is complicated, electron injecting layer can not the problems such as solution processing.
Technical solution: to achieve the above object, the invention adopts the following technical scheme:
A kind of multi-functional amphipathic conjugated molecular material, for the material with fluorene structured for skeleton, pyrene is end-capping group, phosphonate ester As polarity side group, the linear conjugate molecular compound of different alkyl chains is selected, there is the general structure as shown in following formula 1:
Wherein, R is one of C1-C30 alkyl, alkoxy, alkane phenyl, alkane phenoxy group, aryl;C is carbon atom;O is Oxygen atom;P is phosphorus atoms.
Specifically, when R selects hexyl or benzene oxygen hexyl, which is compound represented by the following Expression 2 or formula 3:
A kind of preparation method of multi-functional amphipathic conjugated molecular material, including following synthetic route and synthesis step:
Wherein 1≤n≤30, and be natural number;
Reactant (a), reactant (b) and smelling of tetrabutyl ammonium, potassium carbonate are added in reaction vessel by step (1), are added Enter solvent to make it dissolve, reacts 4-12h under counterflow condition, obtain compound (c);
Step (2) is by the product Compound (c) of step (1), connection boric acid pinacol ester, potassium acetate, [1,1 '-bis- (diphenyl Phosphine) ferrocene] palladium chloride dichloromethane complex are added in reaction vessel, and solvent is added and makes it dissolve, under nitrogen protection 100 DEG C are protected from light for 24 hours, obtain compound (d);
Step (3) adds the product Compound (d) of step (2), 1- bromine pyrene (e), tetrabutylammonium bromide, tetra-triphenylphosphine palladium Enter into reaction vessel, solvent dissolution is added, is protected from light 8-16h at 90-120 DEG C of nitrogen protection, obtains compound (f);
The product Compound (f) of step (3), triethyl phosphite are added in microwave tube by step (4) is dissolved in solvent In, 0.5-1h is reacted at 100-150 DEG C in microwave reactor, obtains compound (g).
Solvent used in the step (1) is acetone or potassium hydroxide aqueous solution, reactant (a) and reactant (b) Molar ratio is 1:(3-5);
Solvent used in the step (2) is one kind of toluene, dioxane, the product Compound (c) of step 1): connection Boric acid pinacol ester: potassium acetate: the molar ratio of [1,1 '-bis- (diphenylphosphine) ferrocene] palladium chloride dichloromethane complex is 1:(2.4-4): (6-9): (0.03-0.1);
Solvent used in the step (3) be one or more of tetrahydrofuran, toluene, chlorobenzene, o-dichlorohenzene, instead Answer object (d): reactant (e): tetrabutylammonium bromide: the molar ratio of tetra-triphenylphosphine palladium is 1:(2.4-4): (0.2-0.4): (0.03-0.1);
In the step (4), the molar ratio of compound (f) and triethyl phosphite is 1:(10-30).
A kind of preparation method of multi-functional amphipathic conjugated molecular material, including following synthetic route and synthesis step:
Wherein 1≤n≤30, and be natural number;
Reactant (a), reactant (b), methane sulfonic acid are added in reaction vessel by step (1), and solvent, which is added, keeps its molten It solves, reacts 36-48h under counterflow condition, obtain compound (c);
The product Compound (c) of step (1), reactant (d) and smelling of tetrabutyl ammonium, potassium carbonate are added to by step (2) In reaction vessel, solvent is added and makes it dissolve, reacts 4-12h under counterflow condition, obtains compound (e);
Step (3) is by the product Compound (e) of step (2), connection boric acid pinacol ester, potassium acetate, [1,1 '-bis- (diphenyl Phosphine) ferrocene] palladium chloride dichloromethane complex are added in reaction vessel bottle, and solvent is added and makes it dissolve, nitrogen protection Under, 100 DEG C of reactions for 24 hours, obtain compound (f);
The product (f) of step (3), (g), tetrabutylammonium bromide, tetra-triphenylphosphine palladium are added in reactor by step (4) Dissolution in a solvent, is protected from light 8-16h for 80-120 DEG C under nitrogen protection, obtains compound (h);
The product Compound (h) of step (4), triethyl phosphite are added in microwave tube by step (5) is dissolved in solvent In, 0.5-1h is reacted at 100-150 DEG C in microwave reactor, obtains compound (i).
Solvent used in the step (1) is chloroform;
Solvent used in the step (2) is acetone or potassium hydroxide aqueous solution, reactant (c) and reactant (d) Molar ratio is 1:(3-5);
Solvent used in the step (3) is one kind of toluene, dioxane, compound (e): connection boric acid pinacol Ester: potassium acetate: the molar ratio of [1,1 '-bis- (diphenylphosphine) ferrocene] palladium chloride dichloromethane complex is 1:(2.4-4): (5-9): (0.03-0.1);
Solvent used in the step (4) be one or more of tetrahydrofuran, toluene, chlorobenzene, o-dichlorohenzene, instead Answer object (g): reactant (e): tetrabutylammonium bromide: the molar ratio of tetra-triphenylphosphine palladium is 1:(2.4-4): (0.2-0.5): (0.03-0.13);
In the step (5), the molar ratio of compound (h) and triethyl phosphite is 1:(10-30).
Application of the above-mentioned multi-functional amphipathic conjugated molecular material in organic electroluminescence device, specifically: the material Material is separately as electron injecting layer, structure are as follows: anode/luminescent layer/electron injecting layer/cathode;Or simultaneously as luminescent layer with Electron injecting layer, structure are as follows: anode/luminescent layer/cathode.
Multi-functional amphipathic conjugated molecular material of the invention has alcohol-soluble, can prepare single layer by solution processing Or multilayer organic light emitting diode device, including spin coating and inkjet printing two ways.It is made by inkjet printing mode organic When electroluminescent device, ink is configured using one or more of ethylene glycol monomethyl ether, ethylene glycol ethyl ether, ethyl alcohol solution.
The utility model has the advantages that the present invention provides a kind of multi-functional amphipathic conjugated molecular materials, with fluorene structured for skeleton, pyrene is made For end group, phosphate is as polarity side.Such material has been synthesized by a series of processes such as Suzuki coupling, phosphating reactions Material, the material have synthesis process it is simple and easy to control, it is low in cost, be easily purified, the advantages such as yield height.The combination of pyrene and fluorenes assigns The good thermal stability of small molecule, fluorescence quantum efficiency, light emission luminance, it is molten that phosphate polar group then assigns the excellent alcohol of material Property, electron injection ability and filming performance.The material is suitable for the processing methods such as spin coating, inkjet printing, can with it is regular activated The solvent of layer shows orthogonal property to avoid intermixing, and the blue emission and active cathodic circle of high brightness can be achieved at the same time Face is modified to simplify device architecture.The material in environmental-friendly alcoholic solvent have good solubility, can with it is regular activated The casting solution of layer shows orthogonal property, thus interface attack phenomenon when solwution method being avoided to prepare multilayer device.The material Possess multifunctional light electrical characteristics, the blue emission and active cathodic modifying interface of high brightness can be achieved at the same time, solves molten at present Liquid process OLED device structure is complicated, electron injecting layer can not solution processing etc. problems.
Detailed description of the invention
Fig. 1 is the compound PEP's in embodiment 11HNMR spectrogram.
Fig. 2 is the compound PEP's in embodiment 113C NMR spectra.
Fig. 3 is the compound POEP's in embodiment 21HNMR spectrogram.
Fig. 4 is the compound POEP's in embodiment 213C NMR spectra.
Fig. 5 is the uv absorption spectra of compound PEP and POEP.
Fig. 6 is the fluorescence emission spectrogram of compound of compound PEP and POEP.
Fig. 7 is the brightness-voltage curve of the Organic Light Emitting Diode in embodiment 3.
Fig. 8 is the Current efficiency-voltage curve of the Organic Light Emitting Diode in embodiment 3.
Specific embodiment
The present invention will be further described combined with specific embodiments below.
Embodiment 1: reaction route is as follows.
Specific step is as follows:
Ith step: 2,7- dibromo fluorenes (20g, 61.7mmol), 1,6- dibromo-hexane (35.5mL, 246.9mmol), the tetrabutyl The mass fraction that 50g is added in smelling ammonium (TBAB) (2g) is in 50% potassium hydroxide aqueous solution, and 65 DEG C of reactions are overnight.Extraction, rotation Dry, 100~200 mesh cross column, obtain 32g compound A, yield 160%.
IIth step: compound A (6g, 9.23mmol), connection boric acid pinacol ester (9.36g, 36.9mmol) substitute nitrogen three Potassium acetate (9.34g, 64.6mmol) is added after secondary, substitutes nitrogen, is protected from light and catalyst Pd (pddf) is added2Cl2(0.4g, It 0.524mmol) is dissolved in the dioxane of 45mL, the lower 100 DEG C of reactions of nitrogen protection are for 24 hours.Extraction was spin-dried for pillar, obtained 4.93g compound B, yield 82%.
IIIth step: compound B (1g, 1.34mmol), 1- bromine pyrene (1.51g, 5.37mmol) are substituted nitrogen and are added afterwards three times Smelling of tetrabutyl ammonium (0.12g, 0.37mmol), substitutes nitrogen, is protected from light and catalyst Pd (PPh is added3)4(0.1g, 0.08mmol) is molten Solution is protected from light 12 hours in the potash water dissolution of the toluene and 7mL of 21mL at 95 DEG C.Extraction was spin-dried for pillar, obtained 0.459g compound C, yield 46%.
IVth step: compound C (0.2g, 0.224mmol) is dissolved in triethyl phosphite (0.74g, 4.48mmol), micro- 140 DEG C of reaction 1h in wave reactor.Vacuum distillation crosses column, obtains 0.183g target product PEP, yield 92%.
Compound C:1H NMR(400MHz,CDCl3):δ8.28-8.22(m,8H),8.14(m,7H),8.07-8.01(m, 5H),7.67(d,4H),3.33(t,4H),2.11(m,4H),1.75(m,4H),1.32-1.20(m,8H),0.96(m,4H).13C NMR(100MHz,CDCl3):δ151.0,140.2,140.1,138.2,131.6,131.0,130.6,129.7,128.7, 127.8,127.5,126.1,125.3,125.2,125.0,124.9,124.8,119.9,55.4,40.4,31.2,30.5, 29.7,26.3,24.9,24.2,22.5.MS m/z:892.14(M+)(calcd:892.82).Elemental Analysis:C 76.76%, H 5.39% (calcd:C 76.68%, H 5.42%)
Target product PEP:1H NMR(400MHz,CDCl3):δ8.32-8.25(m,4H),8.25-8.17(t,4H), 8.16-8.09(m,6H),8.09-8.04(m,4H),8.03-7.98(d,2H),7.72-7.63(t,4H),4.0(m,12H), 1.44(s,13H)1.23(m,22H).13C NMR(100MHz,CDCl3):δ151.0,140.2,140.1,138.2,131.6, 131.0,130.6,129.7,128.7,127.8,127.5,126.1,125.3,125.2,125.0,124.9,124.8, 119.9,61.4,55.4,40.4,30.6,30.5,29.7,26.3,24.9,24.2,22.5,16.5.MS m/z:1006.40(M+) (calcd:1007.2) .Elemental analysis:C 77.62%, H 6.77% (calcd:C 77.51%, H 6.81%)
Embodiment 2: reaction route is as follows.
Specific step is as follows:
Ith step: 2,7- dibromo, two Fluorenone (30.3g, 89.65mmol) is placed in 500mL there-necked flask, addition phenol (71mL, 591.18mmol), the CCl of 120mL4, temperature is adjusted to 80 DEG C, reacts 42h.Stop reaction, uses K after cooling2CO3Solution is quenched, and adds It is fashionable slowly to have a large amount of bubbles and generate.After filter, waste liquid is purple.With DCM more times washings to powdered for pure white Compound D about 28g, yield 93%.
IIth step: compound D (10g, 19.67mmol), 1,6- dibromo-hexane (19.20g, 78.71mmol), the tetrabutyl is smelt Change ammonium (2g) to be added in the potassium hydroxide aqueous solution that the mass fraction of 50g is 50%, 65 DEG C of reactions are overnight.Extraction, is spin-dried for, 100 ~200 mesh cross column.Obtain 13.2g compound E, yield 132%.
IIIth step: compound E (5.4g, 6.47mmol), connection boric acid pinacol ester (6.5614g, 25.89mmol) substitute nitrogen Potassium acetate (3.81g, 33.8mmol) is added afterwards three times in gas, substitutes nitrogen, is protected from light and catalyst Pd (pddf) is added2Cl2(0.21g, It 0.275mmol) is dissolved in the dioxane of 60mL, 100 DEG C of reactions are for 24 hours.Extraction was spin-dried for pillar, obtained 4.21g compound F, Yield 78%.
IVth step: compound F (0.8g, 0.742mmol), after 1- bromine pyrene (0.626g, 2.23mmol) substitutes nitrogen three times It is added smelling of tetrabutyl ammonium (0.11g, 0.34mmol), substitutes nitrogen, be protected from light and catalyst Pd (PPh is added3)4(0.1g, It 0.09mmol) is dissolved in the potash water dissolution of toluene and 7mL of 21mL.It keeps being protected from light 12 hours at 95 DEG C.Extraction It takes and was spin-dried for pillar, obtain 0.424g compound G, yield about 53%.
Vth step: compound G (0.2g, 0.198mmol) is dissolved in triethyl phosphite (0.659g, 3.972mmol), 140 DEG C of reactions are for 24 hours.Vacuum distillation crosses column and obtains 0.178g final product POEP, yield about 89%.
Compound G:1H NMR(400MHz,CDCl3):δ8.30–8.15(m,8H),8.10(s,4H),8.07–7.90(m, 8H), 7.82-7.66 (m, 4H), 7.32 (d, J=8.4Hz, 4H), 6.80 (d, J=8.6Hz, 4H), 3.93 (s, 1H), 3.90 (t, J=6.3Hz, 4H), 3.38 (t, J=6.8Hz, 4H), 1.96-1.81 (m, 4H), 1.81-1.70 (m, 4H), 1.52-1.40 (m,8H).13C NMR(100MHz,CDCl3):δ157.9,152.5,140.6,138.9,137.9,137.8,135.8,131.5, 130.5,130.1,129.3,128.6,128.5,128.3,127.8,127.4,126.0,125.5,125.3,125.1, 125.0,124.8,124.7,120.3,114.2,67.7,64.5,33.9,32.7,29.7,29.1,27.9,25.3,31.3, 29.6,29.1,26.3,25.6.MS m/z:1077.20(M+)(calcd:1077.01).Elemental Analysis:C 76.90%, H 5.23% (calcd:C 76.95%, H 5.24%)
Target product POEP:1H NMR(400MHz,CDCl3):δ8.26-8.14(m,8H),8.10(s,4H),8.06- 7.99(m,8H),7.77-7.70(t,4H),7.30(d,4H),6.90(d,4H),4.11-3.99(m,8H),3.89(t,4H), 1.76-1.72(m,8H),1.76-1.66(m,8H),1.64-1.55(s,12H),0.89-0.80(m,12H).13C NMR (100MHz,CDCl3):δ157.9,152.5,140.6,138.9,137.9,137.8,135.8,131.5,130.5,130.1, 129.3,128.6,128.5,128.3,127.8,127.4,126.0,125.5,125.3,125.1,125.0,124.8, 124.7,120.3,114.2,67.7,64.6,61.4,30.3,29.6,29.1,26.3,25.6,16.5.MS m/z:1911.99 (M+) (calcd:1191.39) .ElementalAnalysis:C 77.53%, H 6.44% (calcd:C 77.63%, H 6.43%)
Embodiment 3
The preparation of Organic Light Emitting Diode.
Prepare OLEDs single layer device by spin-coating method: its device architecture is ITO/PEDOT:PSS 35nm/ luminescent layer 65nm/Al 80nm.Solvent is done using chloroform, luminescent layer prepares 15mg/mL's using any one in compound PEP/POEP Solution.Spin coating under nitrogen protection, revolving speed 1500rpm, 80 DEG C of annealing 10min.
Prepare OLEDs single layer device by ink-jet printing: its device architecture is ITO/PEDOT:PSS 35nm/PEP/Al 80nm.It uses ethylene glycol monomethyl ether for solution, configures the ink of 14mg/mL.100 DEG C of annealing 20min.
The following are the comparisons of the electroluminescent properties of above-mentioned three kinds of single layer organic light emitting diode devices:
aOpening bright voltage and being defined as brightness is 1cd m-2When operating voltage.bWhen maximum brightness.cIt is prepared by inkjet printing.
Three single layer devices are to use multi-functional amphiphilic conjugated molecule as illuminator and cathode interlayer.Analyze table In device performance, when spin-coating method prepares single layer OLED devices, the device A current efficiency based on material PEP reaches 0.73cdA-1, 0.26cdA better than POEP-1.Wherein, device A maximum brightness reaches 3110.4cd m-2.High work function can be directly acted on Aluminium electrode on, illustrate that the material has good cathodic modification ability.Compared with spin coating device, the ink-jet printer based on PEP Part shows the bright voltage that opens down to 3.8V, and maximum current efficiency reaches 1.12cdA-1, have maximum brightness in 11.0V 8850.1cdm-2, performance is more preferably.Result above absolutely proves that this novel MOLECULE DESIGN is conducive to through simple device junction Structure realizes excellent photoelectric characteristic.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment Limitation, it is other any without departing from the modifications and variations done under the principle of the present invention, it should be equivalent substitute mode, all wrap Containing within the scope of the present invention.

Claims (7)

1. a kind of multi-functional amphipathic conjugated molecular material, it is characterised in that: for the material with fluorene structured for skeleton, pyrene is END CAPPED GROUP Group, phosphonate ester select the linear conjugate molecular compound of different alkyl chains as polarity side group, have and tie as shown in following formula 1 Structure general formula:
The material is specifically compound represented by the following Expression 2:
2. a kind of preparation method of multi-functional amphipathic conjugated molecular material as described in claim 1, it is characterised in that: including Following synthetic route and synthesis step:
Reactant (a), reactant (b) and smelling of tetrabutyl ammonium, potassium carbonate are added in reaction vessel by step (1), are added molten Agent makes it dissolve, and reacts 4-12h under counterflow condition, obtains compound (c);
Step (2) is by the product Compound (c) of step (1), connection boric acid pinacol ester, potassium acetate, [1,1 '-bis- (diphenylphosphine) Ferrocene] palladium chloride dichloromethane complex are added in reaction vessel, and solvent is added and makes it dissolve, 100 under nitrogen protection It DEG C is protected from light for 24 hours, obtains compound (d);
The product Compound (d) of step (2), 1- bromine pyrene (e), tetrabutylammonium bromide, tetra-triphenylphosphine palladium are added to by step (3) In reaction vessel, solvent dissolution is added, is protected from light 8-16h at 90-120 DEG C of nitrogen protection, obtains compound (f);
Step (4) product Compound (f) of step (3), triethyl phosphite are added in microwave tube dissolve in a solvent, 0.5-1h is reacted at 100-150 DEG C in microwave reactor, obtains compound (g).
3. the preparation method of multi-functional amphipathic conjugated molecular material according to claim 2, it is characterised in that:
Solvent used in the step (1) is acetone or potassium hydroxide aqueous solution, mole of reactant (a) and reactant (b) Than for 1:(3-5);
Solvent used in the step (2) is one kind of toluene, dioxane, the product Compound (c) of step 1): connection boric acid Pinacol ester: potassium acetate: the molar ratio of [1,1 '-bis- (diphenylphosphine) ferrocene] palladium chloride dichloromethane complex is 1: (2.4-4): (6-9): (0.03-0.1);
Solvent used in the step (3) is one or more of tetrahydrofuran, toluene, chlorobenzene, o-dichlorohenzene, reactant (d): reactant (e): tetrabutylammonium bromide: the molar ratio of tetra-triphenylphosphine palladium is 1:(2.4-4): (0.2-0.4): (0.03- 0.1);
In the step (4), the molar ratio of compound (f) and triethyl phosphite is 1:(10-30).
4. a kind of multi-functional amphipathic conjugated molecular material answering in organic electroluminescence device as described in claim 1 With.
5. application as claimed in claim 4, it is characterised in that: the material is separately as electron injecting layer, or is used as hair simultaneously Photosphere and electron injecting layer are applied in organic electroluminescence device.
6. application as claimed in claim 4, it is characterised in that: the material prepares the organic hair of single-layer or multi-layer by solution processing Optical diode device, using spin coating and inkjet printing two ways.
7. application as claimed in claim 6, it is characterised in that: make organic electroluminescence device by inkjet printing mode When, ink is configured using one or more of ethylene glycol monomethyl ether, ethylene glycol ethyl ether, ethyl alcohol solution.
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Citations (3)

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Publication number Priority date Publication date Assignee Title
CN104356004A (en) * 2014-10-23 2015-02-18 江苏三月光电科技有限公司 Synthesis of novel aromatic compound and application thereof to OLED (organic light emitting diode) device
CN104370752A (en) * 2014-10-23 2015-02-25 江苏三月光电科技有限公司 Synthesis of 1,3,5-tri(aryl amido) phenyl aromatic compound and application of 1,3,5-tri(aryl amido) phenyl aromatic compound on OLED (Organic Light-Emitting Diode) device
CN105418679A (en) * 2015-10-29 2016-03-23 南京邮电大学 Triphenylphosphine oxide unit bridged bipolar host material and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104356004A (en) * 2014-10-23 2015-02-18 江苏三月光电科技有限公司 Synthesis of novel aromatic compound and application thereof to OLED (organic light emitting diode) device
CN104370752A (en) * 2014-10-23 2015-02-25 江苏三月光电科技有限公司 Synthesis of 1,3,5-tri(aryl amido) phenyl aromatic compound and application of 1,3,5-tri(aryl amido) phenyl aromatic compound on OLED (Organic Light-Emitting Diode) device
CN105418679A (en) * 2015-10-29 2016-03-23 南京邮电大学 Triphenylphosphine oxide unit bridged bipolar host material and application thereof

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