CN102709483A - Single-layer white organic light emitting device - Google Patents
Single-layer white organic light emitting device Download PDFInfo
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- CN102709483A CN102709483A CN2012102133634A CN201210213363A CN102709483A CN 102709483 A CN102709483 A CN 102709483A CN 2012102133634 A CN2012102133634 A CN 2012102133634A CN 201210213363 A CN201210213363 A CN 201210213363A CN 102709483 A CN102709483 A CN 102709483A
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Abstract
The invention belongs to the technical field of organic light emitting, and particularly relate to a single-layer white organic light emitting device which comprises a substrate, an anode, a white light emitting layer and a cathode, wherein the white light emitting layer has a single-layer structure prepared by adopting the vacuum evaporation process, and a blue light dye guest material and an orange light dye guest material are jointly mixed to a single parent material. The white organic light emitting device simplifies the device manufacturing flow and overcomes the defect that the conventional multi-layer white device has a complex manufacturing process. The white organic light emitting device has the advantages of high brightness, high efficiency, good color purity and low efficiency roll-off rate.
Description
Technical field
The invention belongs to technical field of organic electroluminescence, be specifically related to a kind of single layer white light organic electroluminescence device.
Background technology
In recent years the industry first meeting blank of organic electroluminescence device (OLED); The company in OLED white-light illuminating field mainly contains American-European Osram, Philips, Novaled, UDC, GE; The Lumiotec of Japan and Korea S, Pannisonic Electric, Konica Minolta, Doosan Electronics; And domestic Nanjing the 1st organic photoelectric, Visionox etc., the company of OLED field of display then mainly contains LG Display, Sony, Samsung, AUO etc.But the OLED product that occurs in the market, price is all quite high, does not have enough advantages with product of the same type.The OLED that we often mention is a multilayer device, generally all comprises electron injecting layer, electron transfer layer, organic function layer, generation layer, hole transmission layer, hole injection layer etc., and no matter multilayer device is at device efficiency, device stability; Still on device lifetime; All obtained gratifying achievement, but this device number of plies is more, preparation process more complicated; Length consuming time, manufacturing cost is than higher.And single layer device except electrode and electrode modification layer, has only one deck organic substance, and this organic matter layer is as luminescent layer, and such device architecture has reduced the complexity of OLED manufacture craft greatly, has shortened manufacturing time, has reduced manufacturing cost.
For these reasons, individual layer OLED becomes a nearest research focus.The individual layer OLED major part of current reported in literature all is a monochrome devices, the single fertile material of the employing that in these monochrome devices there is the fertile material of luminescent layer, two kinds of fertile materials of the employing that has, have in addition adopt three kinds of fertile materials.For example, adopt in the device of single parent, people such as Matsushima are with 2, and two [{ two-(4-methoxyphenyl)-amino }-styryl]-terephthalonitriles (BST) of 5-are doped to phenyl-two pyrenyl phosphinylidyne (POPy
2) in the individual layer orange optical device (T.Matsushima, C.Adachi, Thin Sold Films 2008,516,4288.) that makes; People such as Qiao are doped to 2 respectively with red, green, yellow smooth phosphorescent coloring, and 5-two (2-(carbazole-9-yl) phenyl)-1,3 has realized the red, green, yellow light emission of individual layer (X.F.Qiao, Y.T.Tao in 4-oxadiazoles (O-CzOXD) parent; Et al., J.Appl.Phys.2010,108,034508.), people such as Liu are doped to 1 respectively with the red, green, blue phosphorescent coloring; 3, realized individual layer red, green, blue optical device (Z.W.Liu, M.G.Helander, Z.B.Wang in 5-three (2-N-benzene-benzimidazole) benzene (TPBi) parent; Z.H.Lu, Org.Electron.2009,10,1146); People such as Chang are doped to 3,3 ' with the blue light phosphorescent coloring, 3 " obtained single-layer blue light device (H.H.Chang, W.S.Tsai; et al., Org.Electron.2011,12,2025.) in-three (9-phenyl carbazole) phosphine (POCz3) parents.For the single layer device that adopts two parents, people such as Erickson are doped to 4 with the green glow phosphorescent coloring, 4', 4 " three (9-carbazyl) triphenylamines (TCTA) and 4; 7-diphenyl-1 have been realized single-layer green light device (N.C.Erickson and R.J.Holmes, Appl.Phys.Lett.2010,97; 083308.) in 10-o-phenanthroline (Bphen) parent, people such as Joo are doped to 2 with the phosphorescence red dye, and 7-two (diphenylphosphine) spiral shell (fluorenes-7,11 '-benzfluorene) is (SPPO21) and N; N '-two-(1-phenyl)-N, N '-diphenyl-1,1 '-xenyl-4 has made in 4 '-diamines (NPB) parent (C.W.Joo; S.O.Jeon, K.S.Yook, J.Y.Lee; Org.Electron.2010,11,36.) of individual layer ruddiness device; For the single layer device that adopts three kinds of parents, people such as Jeon are doped to 4,4 ' with the phosphorescence red dye, 4 "-three (3-aminomethyl phenyl aniline) triphenylamine (m-MTDATA), NPB and two (10-hydroxy benzo [h] quinoline) beryllium (Bebq
2) obtained individual layer ruddiness device (W.S.Jeon, T.J.Park, et al., Org.Electron.2010,11,179) in the parent.
And for the single layer white light device, at present only based on the single layer device of polymer and utilize solwution method to make the report of micromolecule single layer device.The anode construction of polymer monolayers white light parts generally adopts ITO/PEDOT:PSS (O.-K.Kima, W.H.Kimb, Z.Huang, J.T.Je, C.S.P.Sung; Synth.Met.2005,150,189.), organic function layer generally all comprises polyvinylcarbazole (PVK) (L.D.Hou, L.Duan; J.Qiao, D.Q.Zhang, L.D.Wang, Y.Cao; Y.Qiu, J.Mater.Chem.2011,21,5312.; Y.F.Wang, Y.Liu, X.S.Li, H.R.Qi, M.X.Zhu, L.Wang, G.T.Lei, Q.L.Wei, W.G.Zhu, J.B.Peng, Y.Cao, Org.Electron.2010,11,1954.; F.C.Chen, S.C.Chien, and Y.S.Chen, Appl.Phys.Lett.2009,94,043306.; Y.F.Wang, Y.Liu, Z.Y.Zhang, J.Luo, D.Y.Shi, H.Tan; G.T.Lei, M.X.Zhu, W.G.Zhu, Y.Cao, Dyes Pigments 2011,91; 495.), and cathode construction has employing LiF/Mg:Ag (O.-K.Kima, W.H.Kimb, Z.Huang, J.T.Je; C.S.P.Sung, Synth.Met.2005,150,189.), CsCo
3/ Al (L.D.Hou, L.Duan, J.Qiao, D.Q.Zhang, L.D.Wang, Y.Cao, Y.Qiu; J.Mater.Chem.2011,21,5312.), Ba/Al (C.Coya, A.L. á lvarez, M.Ramos; R.G ó mez, C.Seoane, J.L.Segura, Synth.Met.2012,161,2580.); Ca/Al (F.C.Chen, S.C.Chien, and Y.S.Chen, Appl.Phys.Lett.2009,94,043306.).Micromolecule single layer white light device is shown in document (L.D.Hou, L.Duan, J.Qiao, the D.Q.Zhang that the Qiu Yong of Tsing-Hua University professor delivered in 2010; G.F.Dong, L.D.Wang, Y.Qiu, Org.Electron.2010; 11,1344.), this single layer white light device adopts solwution method to obtain; Owing to adopt the mode of spin coating to prepare the micromolecule organic function layer, its film forming, uniformity are relatively poor, and device performance is not good enough.
Summary of the invention
The purpose of this invention is to provide a kind of high efficiency, the single layer white light organic electroluminescence device that the efficiency roll-off performance is good.The present invention adopts the organic method of vacuum evaporation, and blue light, orange photoinitiator dye molecular dopant in single bipolarity material of main part, are made high efficiency, white organic light emitting device that the efficiency roll-off performance is good.
Radiation organic EL part at the bottom of the single layer white light of the present invention; It is characterized in that: form by substrate, anode, white-light emitting layer and negative electrode successively; The white-light emitting layer is for adopting the single layer structure of vacuum evaporation process preparation, be with blue light dyestuff guest materials and orange photoinitiator dye guest materials co-doped in single fertile material.
It is anode that the anode material of white light organic electroluminescent device of the present invention adopts the ITO of modified, can select ITO/MoO for use
3, ITO/PEDOT:PSS, ITO/V
2O
5, the preferred ITO/PEDOT:PSS of the present invention.
The thickness of white-light emitting layer is 60-100nm in the white light organic electroluminescent device among the present invention;
The bipolarity fertile material can select 2 for use in the white light organic electroluminescent device among the present invention; 7-two (diphenyl phosphinylidyne)-9-(4-diphenylamine) phenyl-9'-phenyl fluorenes (POAPF), 4; 4 '-N, N-two carbazoles-biphenyl (CBP), two-4-(N-fluorenyl) phenyl) phenyl phosphinylidyne (BCPO), phenyl-two pyrenyl phosphinylidyne (POPy
2) or 2,5-two (2-(carbazole-9-yl) phenyl)-1,3,4-oxadiazoles (o-CzOXD), preferred POAPF of the present invention or CBP;
White light organic electroluminescent device medium blue photoinitiator dye guest materials among the present invention can select two (3 for use; 5-two fluoro-2-(2-pyridine) phenyl-(2-pyridine carboxylic acid root)) close iridium (Firpic), two (2; 4-two fluorobenzene pyridines) four (1-pyrazoles) boric acid closes iridium (Fir6), three (1-phenyl-3-tolimidazole quinoline-2-subunit-C C2') closes iridium [Ir (Pmb)
3] or two (2,4-difluorophenyl pyridine) (5-(pyridine-2-yl) tetrazolium) close iridium (FirN
4), the preferred Firpic of the present invention.
Orange photoinitiator dye guest materials can select for use two (2-benzenethiol-2-alkene-pyridine) (acetylacetone,2,4-pentanediones) to close iridium [Ir (btp) in the white light organic electroluminescent device among the present invention
2(acac)], three (1-phenyl isoquinolin quinolines) close iridium [Ir (piq)
3], two (1-phenyl isoquinolin quinoline) (acetylacetone,2,4-pentanediones) close iridium [Ir (piq)
2Acac], two [1-(9,9-dimethyl fluorene-2-yl)-isoquinolin] acetyl acetone iridium [Ir (fliq)
2(acac)], two (2-phenyl benzothiazole) acetyl acetone iridium [Ir (BT)
2(acac)], two (2-(9,9-diethyl fluorenes-2-yl)-1-phenyl-1H-benzo [d] imidazoles) acetyl acetone iridium [Ir (fbi)
2(acac)], two (4-phenyl thieno [3,2-c] pyridine-N, C2') acetyl acetone iridium (PO-01) or two-(2-phenylchinoline-N, C2') two pivaloyl group methane close iridium [(PQ)
2Ir], preferred two (4-phenyl thieno [3,2-c] pyridine-N, C2') the acetyl acetone iridium (PO-01) of the present invention.
The weight doping content of white light organic electroluminescent device medium blue photoinitiator dye guest materials in the bipolarity fertile material among the present invention is 5wt%-20wt%, and the weight doping content of orange photoinitiator dye guest materials in the bipolarity fertile material is 0.1wt%-2wt%.
Lithium, magnesium, calcium that the cathode material of white light organic electroluminescent device of the present invention adopts LiF to modify; The alloy of the metal that work function such as strontium, aluminium is lower or they and gold, copper, silver etc.; Can select LiF/Al, LiF/Mg:Ag, LiF/Al:Ag etc. for use, the present invention is preferably LiF/Mg:Ag.
The white light organic electroluminescent device that the present invention proposes has been simplified the element manufacturing flow process, has overcome the shortcoming of multilayer white light parts complex manufacturing technology in the past.The white light organic electroluminescent device of the present invention's preparation has high brightness, high efficiency, high color purity, the advantage that efficiency roll-off is slow.
Set forth content of the present invention in detail below in conjunction with accompanying drawing and practical implementation method, should be appreciated that the present invention is not limited to following preferred implementation, this execution mode is only as illustrative embodiment of the present invention.
Description of drawings
Fig. 1: single layer white light organic electroluminescence device structural representation;
The white light organic electroluminescent device normalization luminosity spectral characteristic curve of Fig. 2: embodiment 1 preparation;
White light organic electroluminescent device efficient-the luminosity response of Fig. 3: embodiment 1 preparation;
The white light organic electroluminescent device normalization luminosity spectral characteristic curve of Fig. 4: embodiment 2 preparations;
White light organic electroluminescent device efficient-the luminosity response of Fig. 5: embodiment 2 preparations;
Be illustrated in figure 1 as the single layer white light organic electroluminescence device structure that the present invention proposes, wherein 1 is transparent substrates (like glass); 2 is anode, selects ITO/PEDOT:PSS for use; The 3rd, the white-light emitting layer, the 4th, negative electrode is selected LiF/Mg:Ag for use.
As shown in Figure 3, the curve that this figure hollow core square and hollow circle are linked to be is represented the current efficiency-light characteristic and the power efficiency-luminosity response of the device 1 of embodiment 1 preparation respectively.
As shown in Figure 5, the curve that this figure hollow core square and hollow circle are linked to be is represented the current efficiency-light characteristic and the power efficiency-luminosity response of the device 2 of embodiment 2 preparations respectively.
Embodiment
Embodiment 1:
With POAPF is parent, and having prepared structure is the single layer white light organic electroluminescence device of ITO/PEDOT:PSS/POAPF:Firpic:PO-01/LiF/Mg:Ag, and detailed preparation process is following:
[1] to the transparent conduction base sheet ito glass, carry out decon90 (enlightening health 90) cleaning fluid and washed with de-ionized water successively, used the deionized water ultrasonic cleaning again 15 minutes, the oven dry back is carried out uv ozone to it and is handled; At the surperficial spin coating one deck PEDOT:PSS (Clevios P AI4083) of ITO, thickness was 50nm after ultraviolet was handled.
[2] substrate of handling well is placed multi-source organic molecule gas-phase deposition system, comprise organic evaporating area (10 evaporation source) and evaporation of metal district (2 evaporation source) in the same vacuum cavity of system, completely cut off each other between two districts and between each evaporation source; Avoided mutual pollution, need not destroy system vacuum, substrate can rotate to organic evaporating district or top, evaporation of metal district respectively; Make things convenient for the growth of material; Substrate distance evaporation source 25cm, can rotation with revolution to guarantee the uniformity of metal film and organic membrane, material therefor is placed on respectively in the different evaporation sources of different evaporating area; The temperature of each evaporation source can be controlled separately, is evacuated to 3 * 10 then
-4Pa;
[3] it is constant to keep above-mentioned vacuum condition, vapor deposition POAPF:Firpic:PO-01, LiF successively in the organic evaporating district, and as white-light emitting layer and cathodic modification layer, thickness is respectively 70nm and 0.5nm respectively.The weight ratio of luminescent layer is 90:10:0.5, and growth rate is 1nm/s, and the evaporation rate of LiF is 0.1nm/s;
[4] with substrate-transfer to the evaporation of metal district, it is constant to keep above-mentioned vacuum condition, on LiF, continues vapor deposition Mg:Ag as metallic cathode, the volume ratio of Mg:Ag is 15:1, evaporation rate is 2nm/s, thickness is 120nm, makes device 1.
The thickness of the above material growth and growth rate are produced the control of L-400 film-thickness monitoring by the U.S., and the device performance of preparation gained is with the test under the normal temperature condition in air of Konica Minolta Luminance Meter LS-110 luminance meter, Ocean Optics Maya 2000-PRO spectrometer and Keithley 2400 current/voltage sources.
Embodiment 2:
With CBP is parent, and having prepared structure is the single layer white light organic electroluminescence device of ITO/PEDOT:PSS/CBP:Firpic:PO-01/LiF/Mg:Ag, and detailed preparation process is following:
[1] with embodiment 1;
[2] with embodiment 1;
[3] it is constant to keep above-mentioned vacuum condition, vapor deposition CBP:Firpic:PO-01 successively in the organic evaporating district, and LiF, respectively as white-light emitting layer and cathodic modification layer, thickness is respectively 70 and 0.5nm.The weight ratio of luminescent layer is 90:10:0.5, and growth rate is 1nm/s, and the evaporation rate of LiF is 0.1nm/s;
[4] with substrate-transfer to the evaporation of metal district, it is constant to keep above-mentioned vacuum condition, on LiF, continues vapor deposition Mg:Ag as metallic cathode, the volume ratio of Mg:Ag is 15:1, evaporation rate is 2nm/s, thickness is 120nm, makes device 2.
The thickness of the above material growth and growth rate are produced the control of L-400 film-thickness monitoring by the U.S., and the device performance of preparation gained is with the test under the normal temperature condition in air of Konica Minolta Luminance Meter LS-110 luminance meter, Ocean Optics Maya 2000-PRO spectrometer and Keithley 2400 current/voltage sources.
Can find out by Fig. 2 and Fig. 4; The spectrum of the device 2 of the spectrum of the device 1 of embodiment 1 preparation and embodiment 2 preparations has all comprised blue light and Yellow light emitting; Blue light emitting wherein comes from the luminous of Firpic, and main peak value wavelength is positioned at 470nm, and follows the shoulder peak position in about 500nm; Yellow light emitting comes from the luminous of PO-01, and peak wavelength is positioned at 560nm.The white color coordinate of being launched of device 1 and device 2 is respectively (0.292,0.415) and (0.391,0.505).
Can find out that by Fig. 3 and Fig. 5 the maximum current efficient and the maximum power efficiency of device 1 are respectively 31.4cd/A and 20.9lm/W; Device 2 maximum current efficient and maximum power efficiency be respectively 7.95cd/A and 3.84lm/W.When brightness is 1000cd/m
2, the current efficiency of device 1 and power efficiency are respectively 30.9cd/A and 20.9lm/W, and device 2 current efficiency and power efficiency be respectively 2.2cd/A and 0.63lm/W.Can find out, be that the single layer white light device of parent has higher efficient and efficiency roll-off characteristic more slowly with POAPF.Can find out that by above data the single layer white light device has good device performance in this invention, wherein the efficiency index of device 1 has surpassed the level of conventional incandescent.
The above is merely preferred embodiment of the present invention, can not limit the scope that the present invention implements with it, and the equalization of carrying out according to patent claim of the present invention generally changes and improves, and all should still belong to the scope that patent of the present invention contains.
Claims (7)
1. single layer white light organic electroluminescence device; It is characterized in that: form by substrate (1), anode (2), white-light emitting layer (3) and negative electrode (4) successively; The single layer structure of white-light emitting layer (3) for adopting vacuum evaporation process to prepare, be with blue light dyestuff guest materials and orange photoinitiator dye guest materials co-doped in single fertile material.
2. a kind of single layer white light organic electroluminescence device as claimed in claim 1; It is characterized in that: the fertile material of white-light emitting layer (3) is 2,7-two (diphenyl phosphinylidyne)-9-(4-diphenylamine) phenyl-9'-phenyl fluorenes, 4,4 '-N; N-two carbazoles-biphenyl, two-4-(N-fluorenyl) phenyl) phenyl phosphinylidyne, phenyl-two pyrenyl phosphinylidyne or 2; 5-two (2-(carbazole-9-yl) phenyl)-1,3, the 4-oxadiazoles.
3. a kind of single layer white light organic electroluminescence device as claimed in claim 1; It is characterized in that: blue light dyestuff guest materials can select two (3 for use; 5-two fluoro-2-(2-pyridine) phenyl-(2-pyridine carboxylic acid root)) close iridium, two (2; 4-two fluorobenzene pyridines) four (1-pyrazoles) boric acid closes iridium, three (1-phenyl-3-tolimidazole quinoline-2-subunit-C C2') closes iridium or two (2,4-difluorophenyl pyridine) (5-(pyridine-2-yl) tetrazolium) and closes iridium.
4. a kind of single layer white light organic electroluminescence device as claimed in claim 1; It is characterized in that: orange photoinitiator dye guest materials is that two (2-benzenethiol-2-alkene-pyridine) (acetylacetone,2,4-pentanediones) close iridium, three (1-phenyl isoquinolin quinoline) and close iridium, two (1-phenyl isoquinolin quinoline) (acetylacetone,2,4-pentanedione) and close iridium, two [1-(9; 9-dimethyl fluorene-2-yl)-and isoquinolin] (2-(9 for acetyl acetone iridium, two for acetyl acetone iridium, two (2-phenyl benzothiazole); 9-diethyl fluorenes-2-yl)-and 1-phenyl-1H-benzo [d] imidazoles) acetyl acetone iridium, two (4-phenyl thieno [3; 2-c] pyridine-N, C2') acetyl acetone iridium or two-(2-phenylchinoline-N, C2') two pivaloyl group methane close iridium.
5. a kind of single layer white light organic electroluminescence device as claimed in claim 1 is characterized in that: the thickness of white-light emitting layer (3) is 60-100nm.
6. a kind of single layer white light organic electroluminescence device as claimed in claim 1 is characterized in that: the weight doping content of white-light emitting layer (3) medium blue photoinitiator dye guest materials is 5%-20%.
7. a kind of single layer white light organic electroluminescence device as claimed in claim 4 is characterized in that: the weight doping content of orange photoinitiator dye guest materials is 0.1%-2% in the white-light emitting layer (3).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009173A (en) * | 2014-06-17 | 2014-08-27 | 江苏生美工业技术集团有限公司 | Flexible micromolecule OLED |
| CN104610370A (en) * | 2015-01-12 | 2015-05-13 | 苏州大学 | Iridium complex containing 4-phenylpyrimidine structure and application of iridium complex |
| CN105609653A (en) * | 2016-03-09 | 2016-05-25 | 苏州大学 | White-light OLED device and preparation method thereof |
| US10818850B2 (en) | 2017-12-22 | 2020-10-27 | Samsung Display Co., Ltd. | Organic electroluminescence device and compound including nitrogen for organic electroluminescence device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921171A (en) * | 2006-09-14 | 2007-02-28 | 电子科技大学 | White light organic electroluminescent device |
| CN101179116A (en) * | 2007-12-17 | 2008-05-14 | 中国科学院长春应用化学研究所 | Double phosphorescent coloring agent common adulterate white light organic electroluminescent device and method for fabricating the same |
| CN101359721A (en) * | 2008-09-23 | 2009-02-04 | 吉林大学 | Top radiation organic EL part with optical spectrum adjustable |
| CN101859881A (en) * | 2010-04-28 | 2010-10-13 | 中国科学院长春应用化学研究所 | Electronic transmission material, organic electroluminescent device and preparation method thereof |
| CN102185112A (en) * | 2011-05-12 | 2011-09-14 | 中国科学院长春应用化学研究所 | Laminated organic light-emitting diode and preparation method thereof |
-
2012
- 2012-06-26 CN CN2012102133634A patent/CN102709483A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921171A (en) * | 2006-09-14 | 2007-02-28 | 电子科技大学 | White light organic electroluminescent device |
| CN101179116A (en) * | 2007-12-17 | 2008-05-14 | 中国科学院长春应用化学研究所 | Double phosphorescent coloring agent common adulterate white light organic electroluminescent device and method for fabricating the same |
| CN101359721A (en) * | 2008-09-23 | 2009-02-04 | 吉林大学 | Top radiation organic EL part with optical spectrum adjustable |
| CN101859881A (en) * | 2010-04-28 | 2010-10-13 | 中国科学院长春应用化学研究所 | Electronic transmission material, organic electroluminescent device and preparation method thereof |
| CN102185112A (en) * | 2011-05-12 | 2011-09-14 | 中国科学院长春应用化学研究所 | Laminated organic light-emitting diode and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 谢文法: "新结构白光有机电致发光器件", 《中国优秀博硕士学位论文全文数据库（博士）信息科技辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009173A (en) * | 2014-06-17 | 2014-08-27 | 江苏生美工业技术集团有限公司 | Flexible micromolecule OLED |
| CN104610370A (en) * | 2015-01-12 | 2015-05-13 | 苏州大学 | Iridium complex containing 4-phenylpyrimidine structure and application of iridium complex |
| CN105609653A (en) * | 2016-03-09 | 2016-05-25 | 苏州大学 | White-light OLED device and preparation method thereof |
| US10818850B2 (en) | 2017-12-22 | 2020-10-27 | Samsung Display Co., Ltd. | Organic electroluminescence device and compound including nitrogen for organic electroluminescence device |
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Application publication date: 20121003 |