CN101170852A - An organic EL part with ultra-thin layer structure - Google Patents
An organic EL part with ultra-thin layer structure Download PDFInfo
- Publication number
- CN101170852A CN101170852A CNA2007100504963A CN200710050496A CN101170852A CN 101170852 A CN101170852 A CN 101170852A CN A2007100504963 A CNA2007100504963 A CN A2007100504963A CN 200710050496 A CN200710050496 A CN 200710050496A CN 101170852 A CN101170852 A CN 101170852A
- Authority
- CN
- China
- Prior art keywords
- layer
- acac
- sends
- send
- material layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses an organic electrofluorescence device with an ultrathin layer structure, which includes a transparent underlay, an anode layer, a cathode layer and an organic function layer equipped between the anode layer and the cathode layer, wherein, an electrode is positioned on the surface of the transparent underlay and the organic function layer includes a luminous layer. The invention is characterized in that: the luminous layer includes a plurality of combination layers and phosphorescence material layers with yellow light, blue light, green light and red light all adopt ultrathin layer structure, with the thickness no more than 5nm. The purpose is to utilize common fluorescent material and phosphorescence material with good performance as the functional material in organic layer and to manufacture high-performance organic luminous device with all colors, by changing the device structure and function layer components.
Description
Technical field
The present invention relates to technical field of organic electroluminescence in the electronic devices and components, be specifically related to a kind of organic electroluminescence device with superthin layer structure.
Background technology
Display of organic electroluminescence has significant advantage: from main light emission, low-voltage DC driven, high-low temperature resistant, complete curings, wide visual angle, color enrich, do not need backlight, the visual angle is big, power is low, response speed can reach LCD 1000 times, and its manufacturing cost is lower than the LCD of equal resolution, therefore, display of organic electroluminescence becomes the focus of people's research.
Up to 1987, people such as the C.W.Tang of Kodak were summing up the device of having invented sandwich structure on forefathers' the basis: they adopt, and fluorescence efficiency is very high, electronic transmission performance and the good organic small molecule material oxine aluminium (Alq of filming performance
3), with the aromatic diamine with hole transport characteristic (diamine) derivative make low driving voltage (＜10V), high-quantum efficiency (1%), high brightness (＞1000cd/m
2) organic EL device, this breakthrough has remotivated the enthusiasm of people for organic EL, makes people see the hope of organic electroluminescence device as flat-panel display device of new generation.1997, F rrest etc. found the phosphorescence electro optical phenomenon, have broken through the electroluminescent organic material quantum efficiency and have been lower than 25% restriction, make the research of organic flat-panel display device enter a new period.
Organic elctroluminescent device is as a kind of novel photoconductive organic semiconductor information functional material and solid plate display device, and development in recent years is very fast.White light organic electroluminescent display device is the hot topic of OLED research and development in recent years especially, because white light is contained red, green, blue three kinds of primary colours of whole visible region, easily be converted to full color display device, this is one of best approach that obtains at present the full color demonstration, also will be OLED device practicability, a commercial cutting point.
The flat-panel monitor of full color, large tracts of land, high information quantity is one of most important target of OLED development.Along with reaching its maturity of the luminous demonstration of monochrome, the research of full-color display spare also is surging forward.Full-colour image shows needs to obtain continuously adjustable color in visible wavelength range, and organic electroluminescent realizes that the colored method that shows has following several at present:
1, prepare the trichromatic luminescence center of red, green, blue (being RGB) respectively, the luminous intensity of regulating three kinds of colors then is to realize different color combination.
2, the device that preparation emits white light obtains three primary colors by the colour filter film then, realizes colored the demonstration thereby reconfigure three primary colors.
3, the device of preparation blue light-emitting obtains ruddiness and green glow respectively by blue-light excited other luminescent material then, thereby further obtains colored the demonstration.
4, with red, green, blue luminescent device vertical stack, thereby realize colored the demonstration.
In said method, the process abnormality complexity in method 4 preparation process.Although the full color display device existing procucts based on method 1 come out, accurate pixel preparation needs high-quality vaporization coating template, brings the difficulty of accurate contraposition thus, makes that resolution is difficult to improve. Method 2,3 does not need accurate pixel contraposition, compares with method 3, and method 2 biggest advantage are colored filters of the liquid crystal display (LCD) of directly application technology maturation.Therefore, people turn to sight white light to add the scheme of colour filter film one after another recently, and the high efficiency white light parts becomes a research focus in OLED field.Complex devices structure and manufacturing process have had a strong impact on its industrialization especially at present, and high manufacturing cost has seriously influenced its competitiveness on display device market with the device performance that is difficult to repetition.No matter be that organic electroluminescence device is realized full-colorization demonstration, still use as single mains lighting supply, the device preparation that can send white light all is vital, and their constructional simplicity, high brightness, high efficiency, long-life all are the key factors that influences device practicability; Especially can realize the luminous of white with the structure simple device of trying one's best, utilize the organic semiconducting materials of function admirable,, obtain device efficiently by the method for non-doping.
Summary of the invention
Technical problem to be solved by this invention is how a kind of organic electroluminescence device with superthin layer structure is provided, purpose is to utilize the fluorescent material and the phosphor material of conventional function admirable, can be used as the functional material in the organic layer, the component of the 26S Proteasome Structure and Function layer by changing device prepares high performance versicolor organic luminescent device.
Technical problem proposed by the invention is to solve like this: construct a kind of organic electroluminescence device with superthin layer structure, comprise transparent substrates, anode layer, cathode layer and be arranged on anode layer and cathode layer between organic function layer, wherein a kind of electrode is positioned at the transparent substrates surface, described organic function layer comprises luminescent layer, it is characterized in that described luminescent layer comprises a kind of in the following combination layer:
A, described luminescent layer are the phosphor material layer that sends the fluorescent material layer of blue light and send gold-tinted, under the driving of additional power source, send white light;
B, described luminescent layer are the combination layer that sends the fluorescent material layer of blue light and send the phosphor material layer of green glow, send blue or green light under the driving of additional power source;
C, described luminescent layer are the combination layer that sends the fluorescent material layer of blue light and send the phosphor material layer of ruddiness, send purple light under the driving of additional power source;
D, described luminescent layer are the combination layer that sends the fluorescent material layer of green glow and send the phosphor material layer of ruddiness, send gold-tinted under the driving of additional power source;
E, described luminescent layer are the combination layer that sends the fluorescent material layer of green glow and send the phosphor material layer of blue light, send blue or green light under the driving of additional power source;
F, described luminescent layer are the combination layer that sends the fluorescent material layer of green glow and send the phosphor material layer of gold-tinted, send green-yellow light under the driving of additional power source;
The wherein said phosphor material layer that sends gold-tinted, the phosphor material layer that sends blue light, the phosphor material layer that sends the phosphor material layer of green glow and send ruddiness all adopt the superthin layer structure, and thickness is no more than 5nm.
According to the organic electroluminescence device with superthin layer structure provided by the present invention, it is characterized in that described organic function layer also comprises one or more in hole injection layer, hole transmission layer, electronic barrier layer, hole blocking layer, the electron transfer layer.
According to the organic electroluminescence device with superthin layer structure provided by the present invention, it is characterized in that the described fluorescent material layer that sends blue light is one or more among aromatic diamine compounds, star triphenyl amine compound, carbazole polymer, metal complex, DPVBi, BCzVB, Perylene and the BczVBi; Described aromatic diamine compounds is N, N '-two-(3-aminomethyl phenyl)-N, N '-diphenyl-[1,1 '-xenyl]-4,4 '-diamines or N, N '-two (3-naphthyl)-N, N '-diphenyl-[1,1 '-diphenyl]-4,4 '-diamines, described star triphenyl amine compound is three-[4-(5-phenyl-2-thienyl) benzene] amine or m-TDATA, and described carbazole polymer is a polyvinylcarbazole, and described metal complex is BAlq.
According to the organic electroluminescence device with superthin layer structure provided by the present invention, it is characterized in that, send the complex luminescent material that the phosphor material layer of gold-tinted, the phosphor material layer that sends blue light, the phosphor material layer material that sends the phosphor material layer of green glow and send ruddiness are based on heavy metals such as Ir, Pt, Os, Ru, Rh or Cu.
According to the organic electroluminescence device with superthin layer structure provided by the present invention, it is characterized in that the described phosphor material layer material that sends ruddiness is PtOEP or (btp)
2Ir (acac) or (DPQ) Pt (acac) or (nazo)
2Ir (Fppz) (nazo)
2Ir (Bppz) or (nazo)
2Ir (Fptz) or PhqIr or 6CPt or Pt (thpy-SiMe
3) or Ir (dpq)
2(acac) or Ir (piq)
3Or H-Etpbip (Eu) dbm or Os (fptz)
2(PPh
2Me)
2Red light material series; The phosphor material layer material of described discovery green glow is Ir (ppy)
3Ir (ppy)
2(acac) or Ir (Bu-ppy)
3Or Ir (FPP)
2(acac) or Ir (dmoppy)
3Or Bu
tBpy Re (CO)
3Cl or phen Re (CO)
3Cl or dmphen Re (CO)
3Cl or (pbi)
2Ir (acac) or Cu
4Green light material series; The described phosphor material layer material that sends blue light is Firpic or Ir (ppz)
3Or FIr6 or fac-Ir (pmb)
3Or mer-Ir (pmb)
3Series material; The described phosphor material layer material that sends gold-tinted is (tbt)
2Ir (acac) or (BT)
2Ir (acac) Ir (3-piq)
2(acac) or Ir (3-cf
3Piq)
2(acac) or Ir (3-mf
2Piq)
2(acac) or Ir (3-f
2Piq)
2(acac) or Ir (MDPP)
2(acac) or Ir (DPP)
2(acac) or Ir (BPP)
2(acac) (CF
3-bo)
2Ir (acac) or Ir (DPA-Flpy)
3Or Ir (DPA-Flpy)
2(acac) [Cu (phen) (POP)] PF
6Series material.
According to the organic electroluminescence device with superthin layer structure provided by the present invention, it is characterized in that the used material of described hole blocking layer is one or more in poly N-vinyl carbazole, BCP, two (2-methyl-8-quinoline acid group closes) tri-phenyl-silane aluminium alcoholates (III), two (2-methyl-8-quinoline acid group closes) 4-phenol aluminium (III) and two (2-methyl-8-quinoline acid group closes) the 4-phenylphenol aluminium (III).
According to the organic electroluminescence device with superthin layer structure provided by the present invention, it is characterized in that, described organic function layer, cathode layer and anode layer are respectively arranged with implanted layer, described electron transfer layer and implanted layer material are metal complex material Huo person oxadiazole electron-like transferring material, perhaps imidazoles electron transport material; Described hole transport layer material is aromatic diamine compounds or star triphenyl amine compound, or carbazole polymer.
According to the organic electroluminescence device with superthin layer structure provided by the present invention, it is characterized in that, described metal complex material is that oxine aluminium or oxine gallium or two [2-(2-hydroxy phenyl-1)-pyridine] beryllium Suo Shu oxadiazole electron-like transferring material are 2-(4-diphenyl)-5-(4-2-methyl-2-phenylpropane base)-1,3, the 4-oxadiazole, described imidazoles electron transport material is 1,3,5-three (N-phenyl-2-benzimidazolyl-2 radicals) benzene; Described aromatic diamine compounds is N, N '-two-(3-aminomethyl phenyl)-N, N '-diphenyl-[1,1 '-xenyl]-4,4 '-diamines or N, N '-two (3-naphthyl)-N, N '-diphenyl-[1,1 '-diphenyl]-4,4 '-diamines and derivative thereof, described star triphenyl amine compound is three-[4-(5-phenyl-2-thienyl) benzene] amine or m-TDATA, and described carbazole polymer is polyvinylcarbazole or monomer whose.
According to the organic electroluminescence device with superthin layer structure provided by the present invention, it is characterized in that described transparent substrates is provided with electrically-conductive backing plate, described electrically-conductive backing plate is ito substrate, sheet metal or silicon substrate; Described transparent substrates is glass or flexible substrate or sheet metal, and wherein flexible substrate is ultra-thin solid-state thin slice, polyesters or poly-phthalimide compounds; Described anode layer is metal-oxide film or metallic film, and this metal-oxide film is ito thin film or zinc-oxide film or zinc tin oxide film, and this metallic film is the metallic film of gold, copper, silver; Described anode layer is PEDOT:PSS or PANI class organic conductive polymer; Described metal layer material is metallic film or alloy firm, and this metallic film is the lower metallic film of lithium or work functions such as magnesium or calcium or strontium or aluminium or indium or they and the golden or silver-colored alloy firm of copper.
Preparation method with organic electroluminescence device of superthin layer structure of the present invention may further comprise the steps:
1. utilize washing agent, ethanolic solution and deionized water that transparent substrates is carried out ultrasonic cleaning, clean the back and dry up with drying nitrogen;
2. transparent substrates is sent to the preparation of carrying out electrode in the vacuum evaporation chamber, described electrode comprises anode layer or cathode layer;
The transparent substrates that 3. will prepare electrode moves into vacuum chamber, under oxygen pressure ring border to carrying out the preliminary treatment of low energy oxygen plasma;
4. the transparent substrates after will handling begins to carry out the evaporation of organic film in the vaporization chamber of condition of high vacuum degree, according to device architecture evaporation organic function layer successively, described organic function layer comprise luminescent layer, carrier blocking layers and (or) implanted layer and resilient coating;
5. finish another electrode is carried out in the back in the vacuum evaporation chamber preparation at the organic layer evaporation, described electrode comprises cathode layer or anode layer;
6. ready-made device is sent to glove box and encapsulates, glove box is a nitrogen atmosphere;
7. current-voltage-the light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
Another kind of preparation method is provided, may further comprise the steps:
1. utilize washing agent, ethanolic solution and deionized water that transparent substrates is carried out ultrasonic cleaning, clean the back and dry up with drying nitrogen;
2. transparent substrates is sent to the preparation of carrying out electrode in the vacuum evaporation chamber, described electrode comprises anode layer or cathode layer;
The transparent substrates that 3. will prepare electrode moves into vacuum chamber, under oxygen pressure ring border to carrying out the preliminary treatment of low energy oxygen plasma;
4. the transparent substrates after will handling is carried out the spin coating of organic film in spin coater, according to device architecture spin coating organic function layer successively, described organic function layer comprise luminescent layer, carrier blocking layers and (or) implanted layer and resilient coating;
5. finish to carry out in the vaporization chamber of back at condition of high vacuum degree the preparation of another electrode in the organic layer spin coating, described electrode comprises cathode layer or anode layer;
6. ready-made device is sent to glove box and encapsulates, glove box is a nitrogen atmosphere;
7. current-voltage-the light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
The present invention has opened up an approach that shows unique characteristics from the angle of technology, adopts superthin structure in the device, and this organic electroluminescence device, material therefor are organic substance/macromolecule, thereby range of choice is wide, can realize the demonstration of white light or blue or green light; Driving voltage is low, and luminosity and luminous efficiency height can be made into flexible display device; Response speed is fast, and luminous visual angle is wide; Device is ultra-thin, and volume is little, and is in light weight; What is more important, luminous organic material are that material selects to provide broad scope with its intrinsic diversity, by to the design of organic molecular structure, assemble and cut out, can satisfy many-sided different needs and be easy to realize that large tracts of land shows.Also have the preparation method rationally simple, easy to operate.
Description of drawings
Fig. 1 is the structural representation with organic electroluminescence device of superthin layer provided by the present invention;
Fig. 2 is the structural representation of embodiment 1 provided by the present invention;
Fig. 3 is the structural representation of embodiment 3 provided by the present invention;
Fig. 4 is the test curve figure of the luminescent spectrum of white device described in the embodiment provided by the present invention under the 10V forward voltage.
Wherein, 1, transparent substrates, 2, anode layer, 3, luminescent layer, 4, the double electron transfer layer of doing of hole blocking layer, 5, cathode layer, 6, additional power source, 31, send the phosphor material layer of gold-tinted, 32, send the fluorescent material layer of blue light, 7, hole transmission layer.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
Technical scheme of the present invention provides a kind of blue-ray organic electroluminescent device, as shown in Figure 1 and Figure 2, the structure of device comprises transparent substrates 1, anode layer 2, luminescent layer 3, the double electron transfer layer 4 of doing of hole blocking layer, cathode layer 5, additional power source 6, the double fluorescent material layer 31 that sends blue light of doing of hole transmission layer, send the phosphor material layer 32 of gold-tinted, device emits white light under the driving of additional power source 6.
As shown in Figure 3, the structure of device comprises transparent substrates 1, anode layer 2, luminescent layer 3, the double electron transfer layer 4 of doing of hole blocking layer, cathode layer 5, additional power source 6, hole transmission layer 7 sends the phosphor material layer 31 of gold-tinted, send the fluorescent material layer 32 of blue light, device emits white light under the driving of additional power source 6.
Double fluorescent material layer 31 materials that send blue light of doing of hole transmission layer among the present invention are aromatic diamine compounds or star triphenyl amine compound, or carbazole polymer.Described aromatic diamine compounds can be N, N '-two-(3-aminomethyl phenyl)-N, N '-diphenyl-[1,1 '-xenyl]-4,4 '-diamines (TPD) or N, N '-two (3-naphthyl)-N, N '-diphenyl-[1,1 '-diphenyl]-4,4 '-diamines (NPB), described star triphenyl amine compound can be three-[4-(5-phenyl-2-thienyl) benzene] amine (PTDATA series), and described carbazole polymer can be polyvinylcarbazole (PVK), m-TDATA, DPVBi, BAlq, BCzVB, Perylene or BczVBi etc.。
Double electron transfer layer 4 materials of doing of hole blocking layer among the present invention are the hole barrier materials with electron transport ability, as poly N-vinyl carbazole, BCP, two (2-methyl-8-quinoline acid group closes) tri-phenyl-silane alcohol (silanolate) aluminium (III), two (2-methyl-8-quinoline acid group closes) 4-phenol aluminium (III) or two (2-methyl-8-quinoline acid group closes) 4-phenylphenol aluminium (III).
Adopt the OLED device architecture of the present invention's preparation to be exemplified below:
1. the double double electron transfer layer/cathode layer of doing of blue light-emitting layer/Yellow luminous layer/hole blocking layer of doing of glass/ITO/ hole transmission layer
2. the double electron transfer layer/cathode layer of doing of glass/ITO/ hole transmission layer/blue light-emitting layer/Yellow luminous layer/hole blocking layer
3. the double blue light-emitting layer/Yellow luminous layer/hole blocking layer/hole blocking layer/electron transfer layer/cathode layer of doing of glass/ITO/ hole transmission layer
4. the double electron transfer layer/cathode layer of doing of glass/ITO/ hole transmission layer/Yellow luminous layer/blue light-emitting layer/hole blocking layer
5. glass/ITO/ hole transmission layer/Yellow luminous layer/blue light-emitting layer/hole blocking layer/electron transfer layer/cathode layer
6. the double double electron transfer layer/cathode layer of doing of blue light-emitting layer/Yellow luminous layer/hole blocking layer of doing of glass/conducting polymer/hole transmission layer
7. the double electron transfer layer/cathode layer of doing of glass/conducting polymer/hole transmission layer/blue light-emitting layer/Yellow luminous layer/hole blocking layer
8. the double electron transfer layer/cathode layer of doing of glass/conducting polymer/hole transmission layer/Yellow luminous layer/blue light-emitting layer/hole blocking layer
9. the double double electron transfer layer/cathode layer of doing of blue light-emitting layer/Yellow luminous layer/hole blocking layer of doing of flexible polymer substrate glass/ITO/ hole transmission layer
10. the double electron transfer layer/cathode layer of doing of flexible polymer substrate glass/ITO/ hole transmission layer/blue light-emitting layer/Yellow luminous layer/hole blocking layer
Below be specific embodiments of the invention:
As shown in Figure 2, the luminescent layer 3 in the structure of device comprises the fluorescent material layer 31 that sends blue light, sends the phosphor material layer 32 of gold-tinted, the double electron transfer layer 4 of doing of hole blocking layer.
The fluorescent material layer that sends blue light of device is NPB, and the phosphor material layer that sends gold-tinted is (tbt)
2Ir (acac), the double electron transport material BCP that is of hole blocking layer, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/NPB (30nm)/(tbt)
2Ir (acac) (1nm)/BCP (20nm)/Mg:Ag100nm) preparation method is as follows:
1. utilize washing agent, ethanolic solution and deionized water that the transparent conduction base sheet ito glass is carried out ultrasonic cleaning, clean the back and dry up with drying nitrogen.Wherein the ITO film above the glass substrate is as the anode layer of device, and the square resistance of ITO film is 10 Ω/, and thickness is 180nm.
2. dried substrate being moved into vacuum chamber, is under the oxygen pressure ring border of 20Pa ito glass to be carried out low energy oxygen plasma preliminary treatment 10 minutes at air pressure, and sputtering power is～20W.
3. the substrate after will handling begins to carry out the evaporation of organic film in the vaporization chamber of condition of high vacuum degree.According to the device architecture as mentioned above double blue-light-emitting layer material NPB that is of hole transmission layer of evaporation successively is 30nm, and Yellow luminous material (tbt) 2Ir (acac) is 1nm, the double electron transport material BCP layer 20nm that be of hole blocking layer.The evaporation speed 0.1nm/s of each organic layer, evaporation speed and thickness are by near the film thickness gauge monitoring that is installed in the substrate.
4. finish the preparation of laggard row metal electrode at the organic layer evaporation.Its air pressure is 3 * 10
-3Pa, evaporation speed is～1nm/s, Mg in the alloy, the Ag ratio is～10: 1, thicknesses of layers is 100nm.Evaporation speed and thickness are by near the film thickness gauge monitoring that is installed in the substrate.
5. ready-made device is sent to glove box and encapsulates, glove box is 99.9% nitrogen atmosphere.
6. current-voltage-the light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
The luminescent spectrum that device presses down in the 10V forward drive is referring to accompanying drawing 4.
As shown in Figure 3, the luminescent layer 3 in the structure of device comprises the fluorescent material layer 31 that sends blue light, sends the phosphor material layer 32 of gold-tinted, the double electron transfer layer 4 of doing of hole blocking layer.
The hole mobile material of device is NPB, and the fluorescent material layer that sends blue light is NPB, and the phosphor material layer material that sends gold-tinted is (tbt)
2Ir (acac), the double electron transport material BCP that is of hole blocking layer, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/NPB (20nm)/(tbt)
2Ir (acac) (1nm)/NPB (5nm)/BCP (20nm)/Mg:Ag (100nm)
The preparation of devices flow process is similar to embodiment 1.
As shown in Figure 3, the luminescent layer 3 in the structure of device comprises the fluorescent material layer 31 that sends blue light, sends the phosphor material layer 32 of gold-tinted, the double electron transfer layer 4 of doing of hole blocking layer.
The hole mobile material of device is PVK, and the fluorescent material layer that sends blue light is NPB, and the phosphor material layer that sends gold-tinted is (tbt)
2Ir (acac), the double electron transport material BCP that is of hole blocking layer, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/PVK (50nm)/(tbt)
2Ir (acac) (1nm)/NPB (5nm)/BCP (20nm)/Mg:Ag (100nm)
1. utilize washing agent, ethanolic solution and deionized water that transparent substrates is carried out ultrasonic cleaning, clean the back and dry up with drying nitrogen;
2. transparent substrates is sent to the preparation of carrying out electrode in the vacuum evaporation chamber, described electrode comprises anode layer or cathode layer;
The transparent substrates that 3. will prepare electrode moves into vacuum chamber, under oxygen pressure ring border to carrying out the preliminary treatment of low energy oxygen plasma;
4. the transparent substrates after will handling is carried out the spin coating of organic film in spin coater, according to device architecture spin coating organic function layer successively, described organic function layer comprise luminescent layer, carrier blocking layers and (or) implanted layer and resilient coating;
5. finish to carry out in the vaporization chamber of back at condition of high vacuum degree the preparation of another electrode in the organic layer spin coating, described electrode comprises cathode layer or anode layer;
6. ready-made device is sent to glove box and encapsulates, glove box is a nitrogen atmosphere;
7. current-voltage-the light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
As shown in Figure 3, the luminescent layer 3 in the structure of device comprises blue luminescence layer 31, yellow phosphorescence luminescent layer 32, the double electron transfer layer 4 of doing of hole blocking layer.
The hole mobile material of device is PS:TPD, and the fluorescent material layer material that sends blue light is NPB, and the phosphor material layer material that sends gold-tinted is (tbt)
2Ir (acac), the double electron transport material BCP that is of hole blocking layer, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/PS:TPD (50nm)/(tbt)
2Ir (acac) (1nm)/NPB (5nm)/BCP (20nm)/Mg:Ag (100nm)
The preparation of devices flow process is similar to embodiment 3.
As shown in Figure 3, the luminescent layer 3 in the structure of device comprises the fluorescent material layer 31 that sends blue light, sends the phosphor material layer 32 of gold-tinted, the double electron transfer layer 4 of doing of hole blocking layer.
The hole mobile material of device is m-TDATA, and the fluorescent material layer material that sends blue light is NPB, and the phosphor material layer material that sends gold-tinted is (tbt)
2Ir (acac), the double electron transport material BCP that is of hole blocking layer, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/m-TDATA (30nm)/(tbt)
2Ir (acac) (1nm)/NPB (5nm)/BCP (20nm)/Mg:Ag (100nm)
The preparation of devices flow process is similar to embodiment 1.
As shown in Figure 3, the luminescent layer 3 in the structure of device comprises the fluorescent material layer 31 that sends blue light, sends the phosphor material layer 32 of gold-tinted, the double electron transfer layer 4 of doing of hole blocking layer.
The hole transport layer material of device is TPD, and the fluorescent material layer material that sends blue light is NPB, and the phosphor material layer material that sends gold-tinted is (tbt)
2Ir (acac), the double electron transport material of doing of hole blocking layer is BCP, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/TPD (20nm)/(tbt)
2Ir (acac) (1nm)/NPB (5nm)/BCP (20nm)/Mg:Ag (100nm)
The preparation of devices flow process is similar to embodiment 1.
Claims (9)
1. organic electroluminescence device with superthin layer structure, comprise transparent substrates, anode layer, cathode layer and be arranged on anode layer and cathode layer between organic function layer, wherein a kind of electrode is positioned at the transparent substrates surface, described organic function layer comprises luminescent layer, it is characterized in that described luminescent layer comprises a kind of in the following combination layer:
A, described luminescent layer are the phosphor material layer that sends the fluorescent material layer of blue light and send gold-tinted, under the driving of additional power source, send white light;
B, described luminescent layer are the combination layer that sends the fluorescent material layer of blue light and send the phosphor material layer of green glow, send blue or green light under the driving of additional power source;
C, described luminescent layer are the combination layer that sends the fluorescent material layer of blue light and send the phosphor material layer of ruddiness, send purple light under the driving of additional power source;
D, described luminescent layer are the combination layer that sends the fluorescent material layer of green glow and send the phosphor material layer of ruddiness, send gold-tinted under the driving of additional power source;
E, described luminescent layer are the combination layer that sends the fluorescent material layer of green glow and send the phosphor material layer of blue light, send blue or green light under the driving of additional power source;
F, described luminescent layer are the combination layer that sends the fluorescent material layer of green glow and send the phosphor material layer of gold-tinted, send green-yellow light under the driving of additional power source;
The wherein said phosphor material layer that sends gold-tinted, the phosphor material layer that sends blue light, the phosphor material layer that sends the phosphor material layer of green glow and send ruddiness all adopt the superthin layer structure, and thickness is no more than 5nm.
2. the organic electroluminescence device with superthin layer structure according to claim 1 is characterized in that described organic function layer also comprises one or more in hole injection layer, hole transmission layer, electronic barrier layer, hole blocking layer, the electron transfer layer.
3. the organic electroluminescence device with superthin layer structure according to claim 1 and 2, it is characterized in that the described fluorescent material layer that sends blue light is one or more among aromatic diamine compounds, star triphenyl amine compound, carbazole polymer, metal complex, DPVBi, BCzVB, Perylene and the BczVBi; Described aromatic diamine compounds is N, N '-two-(3-aminomethyl phenyl)-N, N '-diphenyl-[1,1 '-xenyl]-4,4 '-diamines or N, N '-two (3-naphthyl)-N, N '-diphenyl-[1,1 '-diphenyl]-4,4 '-diamines, described star triphenyl amine compound is three-[4-(5-phenyl-2-thienyl) benzene] amine or m-TDATA, and described carbazole polymer is a polyvinylcarbazole, and described metal complex is BAlq.
4. the organic electroluminescence device with superthin layer structure according to claim 1, it is characterized in that, send the complex luminescent material that the phosphor material layer of gold-tinted, the phosphor material layer that sends blue light, the phosphor material layer material that sends the phosphor material layer of green glow and send ruddiness are based on Ir, Pt, Os, Ru, Rh or Cu.
5. the organic electroluminescence device with superthin layer structure according to claim 4 is characterized in that, the described phosphor material layer material that sends ruddiness is PtOEP or (btp)
2Ir (acac) or (DPQ) Pt (acac) or (nazo)
2Ir (Fppz) (nazo)
2Ir (Bppz) or (nazo)
2Ir (Fptz) or PhqIr or 6CPt or Pt (thpy-SiMe
3) or Ir (dpq)
2(acac) or Ir (piq)
3Or H-Etpbip (Eu) dbm or Os (fptz)
2(PPh
2Me)
2Red light material series; The described phosphor material layer material that sends green glow is Ir (ppy)
3Ir (ppy)
2(acac) or Ir (Bu-ppy)
3Or Ir (FPP)
2(acac) or Ir (dmoppy)
3Or Bu
tBpy Re (CO)
3Cl or phen Re (CO)
3Cl or dmphen Re (CO)
3Cl or (pbi)
2Ir (acac) or Cu
4Green light material series; The described phosphor material layer material that sends blue light is Firpic or Ir (ppz)
3Or FIr6 or fac-Ir (pmb)
3Or mer-Ir (pmb)
3Series material; The described phosphor material layer material that sends gold-tinted is (tbt)
2Ir (acac) or (BT)
2Ir (acac) Ir (3-piq)
2(acac) or Ir (3-cf
3Piq)
2(acac) or Ir (3-mf
2Piq)
2(acac) or Ir (3-f
2Piq)
2(acac) or Ir (MDPP)
2(acac) or Ir (DPP)
2(acac) or Ir (BPP)
2(acac) (CF
3-bo)
2Ir (acac) or Ir (DPA-Flpy)
3Or Ir (DPA-Flpy)
2(acac) [Cu (phen) (POP)] PF
6Series material.
6. the organic electroluminescence device with superthin layer structure according to claim 2, it is characterized in that the used material of described hole blocking layer is one or more in poly N-vinyl carbazole, BCP, two (2-methyl-8-quinoline acid group closes) tri-phenyl-silane aluminium alcoholates (III), two (2-methyl-8-quinoline acid group closes) 4-phenol aluminium (III) and two (2-methyl-8-quinoline acid group closes) the 4-phenylphenol aluminium (III).
7. the organic electroluminescence device with superthin layer structure according to claim 1, it is characterized in that, described organic function layer, cathode layer and anode layer are respectively arranged with implanted layer, described electron transfer layer and implanted layer material are metal complex material Huo person oxadiazole electron-like transferring material, perhaps imidazoles electron transport material; Described hole transport layer material is aromatic diamine compounds or star triphenyl amine compound, or carbazole polymer.
8. the organic electroluminescence device with superthin layer structure according to claim 7, it is characterized in that, described metal complex material is that oxine aluminium or oxine gallium or two [2-(2-hydroxy phenyl-1)-pyridine] beryllium Suo Shu oxadiazole electron-like transferring material are 2-(4-diphenyl)-5-(4-2-methyl-2-phenylpropane base)-1,3, the 4-oxadiazole, described imidazoles electron transport material is 1,3,5-three (N-phenyl-2-benzimidazolyl-2 radicals) benzene; Described aromatic diamine compounds is N, N '-two-(3-aminomethyl phenyl)-N, N '-diphenyl-[1, the r-xenyl]-4,4 '-diamines or N, N '-two (3-naphthyl)-N, N '-diphenyl-[1,1 '-diphenyl]-4,4 '-diamines and derivative thereof, described star triphenyl amine compound is three-[4-(5-phenyl-2-thienyl) benzene] amine or m-TDATA, and described carbazole polymer is polyvinylcarbazole or monomer whose.
9. the organic electroluminescence device with superthin layer structure according to claim 1 is characterized in that described transparent substrates is provided with electrically-conductive backing plate, and described electrically-conductive backing plate is ito substrate, sheet metal or silicon substrate; Described transparent substrates is glass or flexible substrate or sheet metal, and wherein flexible substrate is ultra-thin solid-state thin slice, polyesters or poly-phthalimide compounds; Described anode layer is metal-oxide film or metallic film, and this metal-oxide film is ito thin film or zinc-oxide film or zinc tin oxide film, and this metallic film is the metallic film of gold, copper, silver; Described anode layer is PEDOT:PSS or PANI class organic conductive polymer; Described metal layer material is metallic film or alloy firm, and this metallic film is the lower metallic film of lithium or work functions such as magnesium or calcium or strontium or aluminium or indium or they and the golden or silver-colored alloy firm of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710050496A CN101170852B (en) | 2007-11-14 | 2007-11-14 | An organic EL part with ultra-thin layer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710050496A CN101170852B (en) | 2007-11-14 | 2007-11-14 | An organic EL part with ultra-thin layer structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101170852A true CN101170852A (en) | 2008-04-30 |
| CN101170852B CN101170852B (en) | 2010-05-19 |
Family
ID=39391267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710050496A Expired - Fee Related CN101170852B (en) | 2007-11-14 | 2007-11-14 | An organic EL part with ultra-thin layer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101170852B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456680A (en) * | 2010-10-18 | 2012-05-16 | 展晶科技(深圳)有限公司 | Light emitting diode module group |
| CN102544383A (en) * | 2010-12-28 | 2012-07-04 | 乐金显示有限公司 | White organic light emitting device and display device using same |
| JP2015519296A (en) * | 2012-03-23 | 2015-07-09 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーＥ．Ｉ．Ｄｕ Ｐｏｎｔ Ｄｅ Ｎｅｍｏｕｒｓ Ａｎｄ Ｃｏｍｐａｎｙ | Green light emitting material |
| CN109686853A (en) * | 2018-12-26 | 2019-04-26 | 上海晶合光电科技有限公司 | A kind of organic electroluminescence device of color-adjustable |
| CN113527232A (en) * | 2020-04-17 | 2021-10-22 | 东进世美肯株式会社 | Novel compound for cover layer and organic light-emitting element comprising same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6310360B1 (en) * | 1999-07-21 | 2001-10-30 | The Trustees Of Princeton University | Intersystem crossing agents for efficient utilization of excitons in organic light emitting devices |
| JP4493915B2 (en) * | 2001-05-16 | 2010-06-30 | ザ、トラスティーズ オブ プリンストン ユニバーシティ | High efficiency multicolor electric field phosphorescent OLED |
| KR100712098B1 (en) * | 2004-01-13 | 2007-05-02 | 삼성에스디아이 주식회사 | White light emitting organic electroluminescent device and organic electroluminescent display having the same |
| CN100472837C (en) * | 2005-03-31 | 2009-03-25 | 友达光电股份有限公司 | Organic electroluminescent element |
-
2007
- 2007-11-14 CN CN200710050496A patent/CN101170852B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456680A (en) * | 2010-10-18 | 2012-05-16 | 展晶科技(深圳)有限公司 | Light emitting diode module group |
| CN102544383A (en) * | 2010-12-28 | 2012-07-04 | 乐金显示有限公司 | White organic light emitting device and display device using same |
| US8823019B2 (en) | 2010-12-28 | 2014-09-02 | Lg Display Co., Ltd. | White organic light emitting device and display device using the same |
| CN102544383B (en) * | 2010-12-28 | 2015-04-01 | 乐金显示有限公司 | White organic light emitting device and display device using same |
| DE102011056448B4 (en) * | 2010-12-28 | 2017-08-31 | Lg Display Co., Ltd. | Organic white light emitting device and display device using the same |
| JP2015519296A (en) * | 2012-03-23 | 2015-07-09 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーＥ．Ｉ．Ｄｕ Ｐｏｎｔ Ｄｅ Ｎｅｍｏｕｒｓ Ａｎｄ Ｃｏｍｐａｎｙ | Green light emitting material |
| CN109686853A (en) * | 2018-12-26 | 2019-04-26 | 上海晶合光电科技有限公司 | A kind of organic electroluminescence device of color-adjustable |
| CN113527232A (en) * | 2020-04-17 | 2021-10-22 | 东进世美肯株式会社 | Novel compound for cover layer and organic light-emitting element comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101170852B (en) | 2010-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101217187B (en) | Preparation method if organic electroluminescence device with super-thin layer structure | |
| CN101170853A (en) | A white light organic EL part consisting of RGB and its making method | |
| CN102136550B (en) | White light organic electroluminescent device and preparation method thereof | |
| CN102214800B (en) | White-light organic luminescent device and manufacturing method thereof | |
| CN101740724B (en) | Organic electroluminescent device and preparation method thereof | |
| CN101197428A (en) | White light organic electroluminescent device and method for fabricating the same | |
| CN101635334A (en) | Red organic electroluminescence device and preparation method thereof | |
| CN107123749B (en) | A kind of high color rendering index (CRI) white light organic electroluminescent device and preparation method thereof | |
| CN101114699A (en) | Novel electroluminescent device and method for producing the same | |
| CN102903854A (en) | White-light organic electroluminescent device and production method thereof | |
| CN105322099B (en) | A kind of full fluorescence white organic LED and preparation method thereof | |
| CN102214798B (en) | White light organic electroluminescent device and manufacturing method thereof | |
| CN102097598A (en) | Organic light-emitting device and production method thereof | |
| CN101170852B (en) | An organic EL part with ultra-thin layer structure | |
| CN100546067C (en) | A kind of organic electroluminescence device and preparation method thereof | |
| CN102163696A (en) | Organic electroluminescent device taking quantum well structure as luminous layer | |
| CN102208552A (en) | White-light organic electroluminescent device and preparation method thereof | |
| CN100495761C (en) | Organic electro-white light device and producing method thereof | |
| CN100386903C (en) | Preparation method of white organic electroluminescent device | |
| CN101452999B (en) | A white light organic electroluminescent devices | |
| CN1921171A (en) | White light organic electroluminescent device | |
| CN105374949A (en) | Organic light-emitting device and preparation method thereof | |
| CN101051673B (en) | Organic electroluminescence device capable of emitting green light, purple light and white light | |
| CN101022156A (en) | Blue organic electroluminescent device and producing method thereof | |
| CN101197427A (en) | White light organic electroluminescent device and method for fabricating the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20121114 |