CN101170852B - An organic EL part with ultra-thin layer structure - Google Patents

An organic EL part with ultra-thin layer structure Download PDF

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CN101170852B
CN101170852B CN 200710050496 CN200710050496A CN101170852B CN 101170852 B CN101170852 B CN 101170852B CN 200710050496 CN200710050496 CN 200710050496 CN 200710050496 A CN200710050496 A CN 200710050496A CN 101170852 B CN101170852 B CN 101170852B
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acac
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CN101170852A (en
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于军胜
李璐
王军
蒋亚东
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电子科技大学
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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

一种具有超薄层结构的有机电致发光器件 Thin layer structure having an organic electroluminescent device

技术领域 FIELD

[0001] 本发明涉及电子元器件中有机电致发光技术领域,具体涉及一种具有超薄层结构 [0001] The present invention relates to an electronic component in an organic electroluminescent technical field, particularly it relates to an ultra-thin layer structure

的有机电致发光器件。 The organic electroluminescent device. 背景技术 Background technique

[0002] 有机电致发光显示器具有显著的优点:自主发光、低电压直流驱动、耐高低温、全固化、宽视角、颜色丰富、不需要背光源、视角大、功率低、响应速度可达液晶显示器的1000 倍,而其制造成本却低于同等分辨率的液晶显示器,因此,有机电致发光显示器成为人们研究的热点。 [0002] The organic electroluminescent display has the advantage of having significantly: customize emission, low voltage DC drive, high temperature resistance, fully cured, wide viewing angle, rich color, no backlight, a large viewing angle, low power, the response speed of the liquid crystal up 1000 times the display, while its production costs are lower than the same resolution liquid crystal display, therefore, an organic electroluminescent display has become a hot research.

[0003] 直到1987年,美国柯达公司CW Tang等人在总结前人的基础上发明了三明治结构的器件:他们采用荧光效率很高、电子传输性能且成膜性能好的有机小分子材料8-羟基喹啉铝(Alq》,与具有空穴传输特性的芳香族二胺(diamine)衍生物制成低驱动电压(< 10V),高量子效率(1 % ),高亮度(> 1000cd/m2)的有机EL器件,这一突破性进展重新激发了人们对于有机EL的热情,使人们看到了有机电致发光器件作为新一代平板显示 [0003] Until 1987, U.S. CW Tang et al of Kodak Company invented the sandwich structure of the device based on previous on: They used high fluorescence efficiency, electron-transporting property and good film-forming properties of the organic small molecule material 8- hydroxyquinoline aluminum (Alq ", and an aromatic diamine (diamine) derivative having hole transporting property made low driving voltages (<10V), high quantum efficiency (1%), high brightness (> 1000cd / m2) organic EL devices, this breakthrough arouses people's enthusiasm for organic EL, make visible the organic electroluminescent device as the next generation flat panel display

器件的希望。 I hope the device. 1997年,F6rrest等发现磷光电致发光现象,突破了有机电致发光材料量子效率低于25%的限制,使有机平板显示器件的研究进入一个新时期。 In 1997, F6rrest found that phosphorescent electroluminescent phenomenon, breaking the organic electroluminescent material of the quantum efficiency of less than 25% of the limit, so that a flat panel display device of organic entered a new era.

[0004] 有机电致发光显示器件作为一种新型的有机半导体光电信息功能材料和固体平板化显示器件,近年来发展非常迅速。 [0004] The organic electroluminescent display device as a novel organic semiconductor photoelectric functional material and a solid plate information of a display device, developed rapidly in recent years. 白光有机电致发光显示器件更是近年来OLED研究和发展的热门,因为白光涵盖整个可见光区的红、绿、兰三种基色,易转换为全彩色显示器件, 这是目前获得全彩色显示的最佳方法之一,也将是OLED器件实用化,商品化的一个切入点。 White organic electroluminescent display device and more in recent years research and development of OLED popular, because the white light covering the whole visible region of the red, green and blue three primary colors, easily converted into full-color display device, which is currently available full-color display one of the best methods would also be practical OLED device, an entry point for commercialization.

[0005] 全彩色、大面积、高信息量的平板显示器是OLED发展的最重要目标之一。 [0005] full-color, large-area, high information content flat panel display is one of the most important goals OLED development. 随着单色发光显示的日趋成熟,对全彩显示器件的研究也蓬勃兴起。 With monochrome light-emitting display matures, the study of full-color display device is also booming. 全色图像显示需要获得在可见光波长范围内连续可调的颜色,目前有机电致发光实现彩色显示的方法有如下几种: [0006] 1,分别制备红、绿、蓝(即RGB)三原色的发光中心,然后调节三种颜色的发光强度以实现不同的颜色组合。 Display the desired full-color image in the visible wavelength range continuously adjustable color, there are organic electroluminescent color display are the following: [0006] 1, separately prepared red, green, and blue (i.e., RGB) primary colors emission center, and adjust the light emission intensity of the three colors to achieve different color combinations.

[0007] 2,制备发白光的器件,然后通过滤色膜得到三原色,重新组合三原色从而实现彩色显示。 [0007] 2. Preparation of white light emitting devices, and color filter obtained by the three primary colors, three primary colors to achieve recombined color display.

[0008] 3,制备发蓝光的器件,然后通过蓝光激发其它发光材料分别得到红光和绿光,从而进一步得到彩色显示。 [0008] 3. Preparation of blue-emitting devices, and to give red and green light excited by the blue light emitting material other respectively, so that further color display.

[0009] 4,将红、绿、蓝发光器件纵向堆叠,从而实现彩色显示。 [0009] 4, red, green, and blue light emitting devices are stacked longitudinally, thereby realizing color display.

[0010] 在上述方法中,方法4制备过程中的工艺异常复杂。 [0010] In the above methods, the method of preparation 4 during a process very complex. 尽管基于方法1的全彩色显示器件已有产品问世,但精密的像素制备需要高质量的蒸镀模板,由此带来精确对位的困难, 使得分辨率难以提高。 Although based on the full color display method of the existing products available, but the preparation of high-quality precision pixel requires evaporation template, and the resulting difficulties precise position, making it difficult to improve the resolution. 方法2、3都不需要精密的像素对位,与方法3相比,方法2最大的优点便是可以直接应用技术成熟的液晶显示(LCD)的彩色滤光片。 The method does not require sophisticated 3-bit pixels, as compared with method 3, method 2 is that maximum advantage can be applied directly to the liquid crystal display technology is mature (LCD) color filter. 因此,近来人们纷纷把目光转向白光加滤色膜的方案,高效率白光器件成为OLED领域的一个研究热点。 Thus, recently there have turned white plus the color filter scheme, high-efficiency white light emitting device OLED become a hot topic in the field. 目前复杂的器件结构和制造工艺更是严重影响了其产业化,高昂的制造成本和难以重复的器件性能严重地影响了其在显示器件市场上的竞争力。 Currently complex device structure and manufacturing process is seriously affected its industrial, high manufacturing costs and difficult to duplicate the performance of the device seriously affect their competitiveness in the market on the display device. 无论是有机电致发光器件实现全彩化显示,还是作为单一的照明电源使用,可以发出白光的器件制备都是至关重要的,而它们的结构简单性、高亮度、高效率、长寿命都是影响器件实用化的重要因素;尤其是用结构尽量简单的器件能够实现白色的发光,利用性能优良的有机半导体材料,通过非掺杂的方法,得到高效的器件。 Whether it is the organic electroluminescent device to achieve full-color display, or as a single lighting power use, the device may emit white light preparing are essential, and their simple structure, high brightness, high efficiency, long life are It is an important factor in practical devices; in particular, the structure as simple as possible with the device enables white light emission, the use of high performance organic semiconductor material, by means of non-doped obtain efficient devices.

发明内容 SUMMARY

[0011] 本发明所要解决的技术问题是如何提供一种具有超薄层结构的有机电致发光器 [0011] The present invention solves the technical problem of how to provide a structure having a thin layer of an organic electroluminescent device

件,目的是利用常规的性能优良的荧光材料和磷光材料,可作为有机层中的功能材料,通过 Member, the aim of using a conventional high performance fluorescent material and phosphorescent material can be used as a functional material in the organic layer, by

改变器件的结构和功能层的组份,制备高性能的各种颜色的有机发光器件。 Changing the ingredients and the functional layer structure of the device, preparation of high-performance organic light-emitting devices of various colors.

[0012] 本发明所提出的技术问题是这样解决的:构造一种具有超薄层结构的有机电致发 [0012] The technical problem posed is solved according to the present invention: to construct a structure having a thin layer of organic electroluminescent

光器件,包括透明衬底、阳极层、阴极层和设置在阳极层和阴极层之间的有机功能层,其中 Optical device, comprising a transparent substrate, an anode layer, a cathode layer and an organic functional layer disposed between the anode and cathode layers, wherein

一种电极位于透明衬底表面,所述有机功能层包括发光层,其特征在于,所述发光层包括以 An electrode surface of the transparent substrate, the organic functional layer comprises a light emitting layer, wherein the luminescent layer comprises

下组合层中的一种: The combination of one layer:

[0013] A、所述发光层为发出蓝光的荧光材料层和发出黄光的磷光材料层,在外加电源的驱动下,发出白光; [0013] A, the light emitting layer is a fluorescent material layer and the phosphor layer emits blue light emits yellow light, is driven by external power, emits a white light;

[0014] B、所述发光层为发出绿光的荧光材料层和发出黄光的磷光材料层的组合层,在外加电源的驱动下发出黄绿光; [0014] B, the light emitting layer is a layer of a fluorescent material emitting green light and a phosphor layer emits a combination of layers of yellow, yellow-green light emitted at a driving external power source;

[0015] 其中所述的发出黄光的磷光材料层、发出蓝光的磷光材料层、发出绿光的磷光材料层和发出红光的磷光材料层均采用超薄层结构,厚度lnm。 [0015] wherein said layer of phosphorescent material to emit yellow light, blue light emitted phosphor layer, and the layer of phosphorescent material emitting red light of a green phosphor layer are made of thin layer structure, a thickness of lnm.

[0016] 按照本发明所提供的具有超薄层结构的有机电致发光器件,其特征在于,所述有机功能层还包括空穴注入层、空穴传输层、电子阻挡层、空穴阻挡层、电子传输层中的一种或几种。 [0016] The organic electroluminescent device according to the thin layer having a structure provided by the present invention, wherein the organic functional layer further comprises a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer , the electron transport layer is one or more.

[0017] 按照本发明所提供的具有超薄层结构的有机电致发光器件,其特征在于,所述发出蓝光的荧光材料层是芳香族二胺类化合物、星形三苯胺化合物、咔唑类聚合物、金属配合物、DPVBi、 BCzVB、 Perylene和BczVBi中的一种或者多种;所述芳香族二胺类化合物是N, N'-双-(3-甲基苯基)-N,N'-二苯基-[l,l'-联苯基]-4,4'-二胺或者N,N'-双(3-萘基)-N, N' - 二苯基-[1 , 1' - 二苯基]-4, 4' - 二胺,所述星形三苯胺化合物是三_[4- (5-苯基-2-噻吩基)苯]胺或者m-TDATA,所述咔唑类聚合物是聚乙烯咔唑,所述金属配合物是BAlq。 [0017] The organic electroluminescent device according to the thin layer having a structure of the present invention is provided, wherein the fluorescent material layer emits blue light are aromatic diamine compounds, triphenylamine compounds star, carbazoles polymers, metal complexes, DPVBi, BCzVB, Perylene and BczVBi of one or more; the aromatic diamine compound is N, N'- bis - (3-methylphenyl) -N, N '- diphenyl - [l, l'- biphenyl] -4,4'-diamine or N, N'- bis (3-naphthyl) -N, N' - diphenyl - [1, 1 '- diphenyl] -4, 4' - diamine, the star is a three triphenylamine compounds _ [4- (5-phenyl-2-thienyl) phenyl] amine or m-TDATA, the carbazole-based polymer is a polyvinyl carbazole, said metal complexes are BAlq.

[0018] 按照本发明所提供的具有超薄层结构的有机电致发光器件,其特征在于,发出黄光的磷光材料层、发出蓝光的磷光材料层、发出绿光的磷光材料层和发出红光的磷光材料层材料是基于Ir、 Pt、 0s、 Ru、 Rh或Cu等重金属的配合物发光材料。 [0018] The organic electroluminescent device according to the thin layer having a structure of the present invention is provided, wherein the phosphor layer emits yellow light, the phosphor layer emits blue light, emits green light and a phosphor layer emitting red light phosphor layer material is based on heavy metals Ir, Pt, 0s, Ru, Rh, or Cu complexes and other light-emitting material.

[0019] 按照本发明所提供的具有超薄层结构的有机电致发光器件,其特征在于,所述发出黄光的磷光材料层材料是(tbt)2Ir(acac)或(BT)2Ir (acac) Ir (3_piq)2 (acac)或Ir(3_cf3piq)2(ac£ic)或Ir (3_mf2piq) 2 (acac)或Ir (3_f2Piq) 2 (acac)或Ir (MDPP) 2 (acac) 或Ir(DPP)2(acac)或Ir (BPP)2(acac) (CF3_bo)2Ir(acac)或Ir(DPA-Flpy)3或Ir(DPA-Flpy)2(acac) [Cu(phen) (POP) ]PF6系列材料。 [0019] The organic electroluminescent device according to the thin layer having a structure of the present invention is provided, wherein the phosphor layer material emits yellow light is (tbt) 2Ir (acac) or (BT) 2Ir (acac ) Ir (3_piq) 2 (acac) or Ir (3_cf3piq) 2 (ac £ ic) or Ir (3_mf2piq) 2 (acac) or Ir (3_f2Piq) 2 (acac) or Ir (MDPP) 2 (acac) or Ir ( DPP) 2 (acac) or Ir (BPP) 2 (acac) (CF3_bo) 2Ir (acac) or Ir (DPA-Flpy) 3 or Ir (DPA-Flpy) 2 (acac) [Cu (phen) (POP)] PF6 series material. [0020] 按照本发明所提供的具有超薄层结构的有机电致发光器件,其特征在于,所述空穴阻挡层所用的材料是聚N-乙烯基咔唑、BCP、二(2-甲基-8-喹啉酸根合)三苯基硅烷醇铝(ni)、二(2-甲基-8-喹啉酸根合)4-苯酚铝(III)和二(2-甲基-8-喹啉酸根合)4-苯基苯酚铝(III)中的一种或者多种。 [0020] The organic electroluminescent device according to the thin layer having a structure provided by the present invention, wherein the hole blocking layer material used is poly N- vinylcarbazole, the BCP, bis (2- phosphinato-8-quinolinolato) aluminum, triphenyl silanol (ni), bis (2-methyl-8-quinolinolato phosphinato) 4-phenol aluminum (III) and bis (2-methyl-8- quinoline phosphinato) one or more of 4-phenyl phenol, aluminum (III) is.

[0021] 按照本发明所提供的具有超薄层结构的有机电致发光器件,其特征在于,所述有机功能层、阴极层和阳极层分别设置有注入层,所述电子传输层和注八层材料是金属配合物材料或者噁二唑类电子传输材料,或者咪唑类电子传输材料;所述空穴传输层材料是芳香族二胺类化合物或星形三苯胺化合物,或咔唑类聚合物。 [0021] The organic electroluminescent device according to the thin layer having a structure provided by the present invention, wherein the organic functional layer, a cathode and anode layers are provided with injection layer, the electron transport layer and Note 8 layer of material is a metal material or a complex of oxadiazole electron transport material, electron transport material or imidazoles; the hole transport layer material is an aromatic diamine compound or star triphenylamine compounds, carbazole-based polymer, or .

[0022] 按照本发明所提供的具有超薄层结构的有机电致发光器件,其特征在于,所述金属配合物材料是8-羟基喹啉铝或者8-羟基喹啉镓或者双[2- (2-羟基苯基-1)-吡啶] 铍,所述噁二唑类电子传输材料是2- (4- 二苯基)-5- (4-叔丁苯基)-1 , 3, 4-噁二唑,所述咪唑类电子传输材料是l,3,5-三(N-苯基-2-苯并咪唑-2)苯;所述芳香族二胺类化合物是N,N'-双_(3-甲基苯基)-N,N' -二苯基-[l,l'-联苯基]-4,4' _ 二胺或者N, N,-双(3-萘基)-N, N' - 二苯基-[1 , 1' - 二苯基]-4, 4' - 二胺及其衍生物,所述星形三苯胺化合物是三-[4-(5-苯基-2-噻吩基)苯]胺或者m-TDATA,所述咔唑类聚合物是聚乙烯咔唑或者其单体。 [0022] The organic electroluminescent device according to the thin layer having a structure of the present invention is provided, wherein said material is a metal complex of 8-hydroxyquinoline or 8-hydroxyquinoline aluminum, gallium or bis [2- (2-hydroxyphenyl-1) - pyridine] beryllium, oxadiazole said electron transporting material is 2- (4-biphenylyl) -5- (4-t-butylphenyl) -1, 3, 4 - oxadiazole, imidazole said electron transporting material is l, 3,5- -tris (N- -2-phenyl-2-benzimidazole) benzene; the aromatic diamine compound is N, N'- _-bis (3-methylphenyl) -N, N '- diphenyl - [l, l'- biphenyl] -4,4' _ diamine or N, N, - bis (3-naphthyl ) -N, N '- diphenyl - [1, 1' - diphenyl] -4, 4 '- diamine and derivatives thereof, the star triphenylamine compound is tris - [4- (5 phenyl-2-thienyl) phenyl] amine or m-TDATA, the carbazole-based polymer is polyethylene or a carbazole monomer.

[0023] 按照本发明所提供的具有超薄层结构的有机电致发光器件,其特征在于,所述透明衬底上设置有导电基板,所述导电基板是IT0基板、金属薄片或硅基板;所述透明衬底是玻璃或者柔性基片或者金属薄片,其中柔性基片是超薄的固态薄片、聚酯类或聚酞亚胺类化合物;所述阳极层是金属氧化物薄膜或者金属薄膜,该金属氧化物薄膜是IT0薄 [0023] The organic electroluminescent device according to the thin layer having a structure of the present invention is provided, wherein the transparent substrate provided with a conductive substrate, the conductive substrate is IT0 substrate, a metal foil or a silicon substrate; the transparent substrate is a glass substrate or a flexible foil, or, wherein the flexible substrate is a thin solid sheet, polyester or polyethylene phthalimide compound; said anode layer is a metal oxide or a metal thin film, the metal oxide film is a thin IT0

膜或者氧化锌薄膜或氧化锡锌薄膜,该金属薄膜是金、铜、银的金属薄膜;所述阳极层是PEDOT:PSS或PANI类有机导电聚合物;所述金属层材料是金属薄膜或合金薄膜,该金属薄膜是锂或镁或钙或锶或铝或铟等功函数较低的金属薄膜或它们与铜或金或银的合金薄膜。 Film or a zinc oxide thin film or a zinc oxide, tin oxide film, the metal thin film is a metal thin film of gold, copper, and silver; and the anode layer is PEDOT: PSS or PANI-based organic conductive polymer; the metal layer material is a metal or an alloy film film, the metal film is a low lithium or magnesium or calcium or strontium, or aluminum, indium, or the like, or a work function of the metal thin film and the copper or alloy thin film of gold or silver. [0024] 本发明的具有超薄层结构的有机电致发光器件的制备方法,包括以下步骤: [0025] ①利用洗涤剂、乙醇溶液和去离子水对透明衬底进行超声清洗,清洗后用干燥氮气吹干; [0024] The method of making an organic electroluminescent device of the present invention has a thin layer structure, comprising the steps of: [0025] ① using detergent, deionized water and ethanol solution of the transparent substrate was subjected to ultrasonic cleaning, washing with blow dry nitrogen;

[0026] ②将透明衬底传送至真空蒸发室中进行电极的制备,所述电极包括阳极层或者阴极层; [0026] ② transmits the transparent substrate to a vacuum evaporation chamber electrode is prepared, the electrode comprises an anode layer or a cathode layer;

[0027] ③将制备好电极的透明衬底移入真空室,在氧气压环境下对进行低能氧等离子预处理; [0027] ③ The prepared transparent substrate into a vacuum chamber of a good electrode of low energy oxygen plasma pre-treatment under an oxygen pressure of the environment;

[0028] ④将处理后的透明衬底在高真空度的蒸发室中,开始进行有机薄膜的蒸镀,按照器件结构依次蒸镀有机功能层,所述有机功能层包括发光层、载流子传输层和(或)注入层和缓冲层; [0028] ④ The transparent substrate is processed in a high degree of vacuum evaporation chamber, the vapor-deposition of organic thin film device structures were deposited in accordance with the organic functional layer, the functional layer comprising the organic light-emitting layer, the carriers transport layer, and (or) injection and buffer layers;

[0029] ⑤在有机层蒸镀结束后在真空蒸发室中进行另一个电极的制备,所述电极包括阴极层或者阳极层; [0029] ⑤ prepared other electrode in the vacuum chamber after the evaporation of organic layer deposition, the electrode comprising a cathode layer or the anode layer;

[0030] ⑥将做好的器件传送到手套箱进行封装,手套箱为氮气氛围; [0030] ⑥ will be well transferred to a glove box for a device package, a nitrogen atmosphere glove box;

[0031] ⑦测试器件的电流_电压_亮度特性,同时测试器件的发光光谱参数。 [0031] Current luminance characteristics ⑦ _ _ voltage testing device, while the emission spectrum of the device under test parameters.

[0032] 提供另一种制备方法,包括以下步骤: [0032] provides another preparation method, comprising the steps of:

[0033] ①利用洗涤剂、乙醇溶液和去离子水对透明衬底进行超声清洗,清洗后用干燥氮气吹干; [0033] ① using detergent, deionized water and ethanol solution of the transparent substrate subjected to ultrasonic washing, drying after cleaning with dry nitrogen;

[0034] ②将透明衬底传送至真空蒸发室中进行电极的制备,所述电极包括阳极层或者阴极层; [0034] ② transmits the transparent substrate to a vacuum evaporation chamber electrode is prepared, the electrode comprises an anode layer or a cathode layer;

[0035] ③将制备好电极的透明衬底移入真空室,在氧气压环境下对进行低能氧等离子预处理; [0035] ③ The prepared transparent substrate into a vacuum chamber of a good electrode of low energy oxygen plasma pre-treatment under an oxygen pressure of the environment;

[0036] ④将处理后的透明衬底在旋涂机中进行有机薄膜的旋涂,按照器件结构依次旋涂有机功能层,所述有机功能层包括发光层、载流子传输层和(或)注入层和缓冲层; [0037] ⑤在有机层旋涂结束后在高真空度的蒸发室中进行另一个电极的制备,所述电极包括阴极层或者阳极层; [0036] ④ The transparent substrate treated by spin coating an organic thin film in a spin coater, the device according to the structure of the organic functional layer was successively spin-coating, the functional organic layer comprises an emission layer, a carrier transport layer (or ) injection and buffer layers; [0037] preparation of the other electrode ⑤ high degree of vacuum in the evaporation chamber at the end of the spin-coated organic layer, said electrode comprising a cathode layer or the anode layer;

[0038] ⑥将做好的器件传送到手套箱进行封装,手套箱为氮气氛围; [0038] ⑥ will be well transferred to a glove box for a device package, a nitrogen atmosphere glove box;

[0039] ⑦测试器件的电流_电压_亮度特性,同时测试器件的发光光谱参数。 [0039] Current luminance characteristics ⑦ _ _ voltage testing device, while the emission spectrum of the device under test parameters.

[0040] 本发明从工艺的角度开辟了一条独具特色的途径,器件中采用超薄结构,该有机 [0040] From the perspective of the process of the present invention opens the way to a unique, ultra-thin structure of the device, the organic

电致发光器件,所用材料为有机物/高分子,因而选择范围宽,可实现白光或者青光的显 Electroluminescent devices, materials used for organic / polymer, and thus a wide range of options, may implement white light or glaucoma was

示;驱动电压低,发光亮度和发光效率高,可制成柔性显示器件;响应速度快,发光视角宽; Shown; low driving voltage, high brightness and luminous efficiency, can be made of a flexible display device; fast response, wide viewing angle light emission;

器件超薄,体积小,重量轻;更为重要的是,有机发光材料以其固有的多样性为材料选择提 Means thin, small size, light weight; more importantly, an organic light emitting material is its natural diversity material selection provide

供了宽广的范围,通过对有机分子结构的设计、组装和剪裁,能够满足多方面不同的需要和 For a wide range, by designing the structure of the organic molecule, and the assembly cut to meet the many different needs and

易于实现大面积显示。 Easy to implement large-area display. 还有制备方法合理简单,易操作。 There are reasonable method of preparation is simple and easy to operate.

附图说明 BRIEF DESCRIPTION

[0041] 图1是本发明所提供的具有超薄层的有机电致发光器件的结构示意图; [0042] 图2是本发明所提供的实施例1的结构示意图; [0043] 图3是本发明所提供的实施例3的结构示意图; [0041] FIG. 1 is a schematic view of an organic electroluminescent device having a thin layer of the present invention are provided; [0042] FIG. 2 is a schematic structural diagram of an embodiment of the present invention provides; [0043] FIG. 3 is present structure Example 3 of the invention provides a schematic view;

[0044] 图4是本发明所提供的实施例中所述白色器件在10V正向电压下的发光光谱的测试曲线图。 [0044] FIG. 4 is an embodiment of the present invention provides a device in the emission spectrum of the white test graph at a forward voltage of 10V.

[0045] 其中,1、透明衬底,2、阳极层,3、发光层,4、空穴阻挡层兼做电子传输层,5、阴极层,6、外加电源,31、发出黄光的磷光材料层,32、发出蓝光的荧光材料层,7、空穴传输层。 [0045] wherein 1, a transparent substrate 2, an anode layer 3, a light emitting layer 4, a hole blocking layer also serves as the electron transporting layer 5, cathode layer 6, external power supply 31, the phosphor emits yellow light material layer 32, the fluorescent material layer emits blue light, 7, a hole transport layer.

具体实施方式 Detailed ways

[0046] 下面结合附图对本发明作进一步的说明。 [0046] The following drawings further illustrate the present invention in combination.

[0047] 本发明的技术方案是提供一种蓝光有机电致发光器件,如图1、图2所示,器件的结构包括透明衬底1,阳极层2,发光层3,空穴阻挡层兼做电子传输层4,阴极层5,外加电源6,空穴传输层兼做发出蓝光的荧光材料层31,发出黄光的磷光材料层32,器件在外加电源6的驱动下发白光。 [0047] aspect of the present invention is to provide a Blue light, structure of the organic electroluminescent device, as shown in FIG. 2 device includes a transparent substrate 1, an anode layer 2, a light emitting layer 3, a hole blocking layer-cum do electron transport layer 4, a cathode layer 5, the external power supply 6, a hole transport layer also serves as the fluorescent material layer 31 emits blue light, emitted yellow phosphor layer 32, the device under white light driving power source 6 is applied.

[0048] 如图3所示,器件的结构包括透明衬底1,阳极层2,发光层3,空穴阻挡层兼做电子传输层4,阴极层5,外加电源6,空穴传输层7,发出黄光的磷光材料层31,发出蓝光的荧光材料层32,器件在外加电源6的驱动下发白光。 [0048] As shown, the structure shown in FIG. 3 comprises a device 1, 2, 3 light-emitting layer, a hole blocking layer, electron transport layer 4 also serves as the cathode layer transparent substrate an anode layer 5, external power supply 6, the hole-transporting layer 7 , issued yellow phosphor layer 31, the fluorescent material layer 32 emits blue light, white light emitting device driven by the external power supply 6.

[0049] 本发明中透明衬底1为电极和有机薄膜层的依托,它在可见光区域有着良好的透光性能,有一定的防水汽和氧气渗透的能力,有较好的表面平整性,它可以是玻璃或柔性基片,柔性基片采用聚酯类、聚酞亚胺化合物中的一种材料或者较薄的金属。 [0049] In the present invention, the transparent electrode substrate 1 and the organic thin film layers rely on, it has a good light transmission properties in the visible region, the ability of certain water vapor and oxygen permeability, and better surface flatness, it may be glass or a flexible substrate, the flexible substrate is a polyester-based, polyethylene material or a phthalimide compound of thinner metal. [0050] 本发明中阳极层2作为有机电致发光器件正向电压的连接层,它要求有较好的导电性能、可见光透明性以及较高的功函数。 [0050] As the 2 organic electroluminescent device connected in the forward voltage level, it requires a good conductivity, high visible transparency, and the work function of the anode layer in the present invention. 通常采用无机金属氧化物(如氧化铟锡ITO,氧化锌ZnO等)、有机导电聚合物(如PEDOT:PSS,PANI等)或高功函数金属材料(如金、铜、 银、钼等)。 Usually inorganic metal oxides (such as indium tin oxide, ITO, zinc oxide, ZnO, etc.), an organic conductive polymer (e.g. PEDOT: PSS, PANI, etc.) or a high work function metal material (such as gold, copper, silver, molybdenum, etc.).

[0051] 本发明中阴极层6作为器件负向电压的连接层,它要求具有较好的导电性能和较低的功函数,阴极通常为低功函数金属材料锂、镁、钙、锶、铝、铟等功函数较低的金属或它们与铜、金、银的合金;或者一层很薄的缓冲绝缘层(如LiF、MgF2等)和前面所提高的金属或合金。 [0051] In the present invention, the cathode layer 6 to the connection device layer as a negative voltage, it is required to have good conductivity and low work function, typically a low work function cathode material is metal lithium, magnesium, calcium, strontium, aluminum , low work function metal such as indium or an alloy thereof with copper, gold, silver; or a thin insulating buffer layer (e.g., LiF, MgF2, etc.) and to improve the above metal or alloy.

[0052] 本发明中的空穴传输层兼做发出蓝光的荧光材料层31材料为芳香族二胺类化合物或星形三苯胺化合物,或咔唑类聚合物。 [0052] The hole transport layer also serves as the present invention emits blue fluorescent material layer 31 material is a star or aromatic diamine compound triphenylamine compounds, carbazole-based or polymer. 所述芳香族二胺类化合物可以是N, N'-双-(3-甲基苯基)-N,N'-二苯基-[l,l'-联苯基]-4,4'-二胺(TPD)或者N,N'-双(3-萘基)-N,N' -二苯基-[l,l' -二苯基]-4,4' -二胺(NPB),所述星形三苯胺化合物可以是三-[4-(5-苯基-2-噻吩基)苯]胺(PTDATA系列),所述咔唑类聚合物可以是聚乙烯咔唑(PVK),m-TDATA,DPVBi、BAlq、BCzVB、Perylene、或BczVBi等。 The compound may be an aromatic diamine N, N'- bis - (3-methylphenyl) -N, N'- diphenyl - [l, l'- biphenyl] -4,4 ' - diamine (TPD) or N, N'- bis (3-naphthyl) -N, N '- diphenyl - [l, l' - diphenyl] -4,4 '- diamine (NPB) , the star triphenylamine compound may be a three - [4- (5-phenyl-2-thienyl) phenyl] amine (PTDATA series), the carbazole-based polymer may be polyvinyl carbazole (PVK) , m-TDATA, DPVBi, BAlq, BCzVB, Perylene, BczVBi, or the like.

[0053] 本发明中的发出黄光的磷光材料层32材料是(tbt)Jr(acac)或(BT) 2Ir (acac) Ir (3-piq) 2 (acac)或Ir (3_cf3piq) 2 (acac)或Ir (3_mf2Piq) 2 (acac)或Ir (3_f2piq) 2 (acac) 或Ir(MDPP)2(acac)或Ir(DPP)2(acac)或Ir(BPP)2(acac) (CF3_bo)2Ir(acac)或Ir (DPA-Flpy) 3或Ir (DPA-Flpy) 2 (acac) [Cu(phen) (P0P)]PF6系列材料。 [0053] The phosphor layer 32 emits yellow light material in the present invention (tbt) Jr (acac) or (BT) 2Ir (acac) Ir (3-piq) 2 (acac) or Ir (3_cf3piq) 2 (acac ) or Ir (3_mf2Piq) 2 (acac) or Ir (3_f2piq) 2 (acac) or Ir (MDPP) 2 (acac) or Ir (DPP) 2 (acac) or Ir (BPP) 2 (acac) (CF3_bo) 2Ir (acac) or Ir (DPA-Flpy) 3 or Ir (DPA-Flpy) 2 (acac) [Cu (phen) (P0P)] PF6 series material. [0054] 本发明中的空穴阻挡层兼做电子传输层4材料为具有电子传输能力的空穴阻挡材料,如聚N-乙烯基咔唑、BCP、二(2-甲基-8-喹啉酸根合)三苯基硅烷醇(silanolate) 铝(III) 、二(2-甲基-8-喹啉酸根合)4-苯酚铝(III)或二(2-甲基-8-喹啉酸根合)4-苯基苯酚铝(III)。 [0054] In the present invention, a hole blocking layer, electron transport layer 4 also serves as a material having a hole transport capability electron blocking materials, such as poly N- vinylcarbazole, the BCP, bis (2-methyl-8-quinolin morpholine phosphinato) triphenyl silanol (silanolate) aluminum (III), bis (2-methyl-8-quinolinolato phosphinato) 4-phenol aluminum (III) or bis (2-methyl-8-quinolinolato phosphinato) 4-phenyl phenol, aluminum (III).

[0055] 采用本发明制备的0LED器件结构举例如下: [0055] Prepared according to the present invention 0LED device structure for example as follows:

[0056] ①玻璃/IT0/空穴传输层兼做蓝色发光层/黄色发光层/空穴阻挡层兼做电子传输层/阴极层 [0056] ① glass / IT0 / hole transport layer also serves as a blue light-emitting layer / yellow light emitting layer / hole blocking layer also serves as an electron transporting layer / cathode layer

[0057] ②玻璃/IT0/空穴传输层/蓝色发光层/黄色发光层/空穴阻挡层兼做电子传输层/阴极层[0058] ③玻璃 [0057] ② glass / IT0 / hole transporting layer / blue light emitting layer / yellow light emitting layer / hole blocking layer also serves as an electron transporting layer / cathode layer [0058] ③ Glass

层/电子传输层[0059] ©玻璃 Layer / electron transporting layer [0059] © glass

层/阴极层 Layer / cathode layer

[0060] ⑤玻璃/IT0/空穴传输层/黄色发光层/蓝色发光层/空穴阻挡层/电子传输层/阴极层 [0060] ⑤ glass / IT0 / hole transporting layer / yellow light emitting layer / blue light emitting layer / hole blocking layer / electron transporting layer / cathode layer

[0061] ©玻璃/导电聚合物 [0061] © glass / conductive polymer

做电子传输层/阴极层[0062] ⑦玻璃/导电聚合物 Do electron transporting layer / cathode layer [0062] ⑦ glass / conductive polymer

电子传输层/阴极层[0063] ⑧玻璃/导电聚合物 Electron transporting layer / cathode layer [0063] ⑧ glass / conductive polymer

电子传输层/阴极层 Electron transporting layer / cathode layer

'IT0/空穴传输层兼做蓝色发光层z阴极层 'IT0 / hole transport layer also serves as a blue light emitting layer cathode layer z

'IT0/空穴传输层/黄色发光层/蓝色发光层 'IT0 / hole transporting layer / yellow light emitting layer / blue light emitting layer

黄色发光层/空穴阻挡层/空穴阻挡 The yellow light emitting layer / hole blocking layer / hole blocking

空穴阻挡层兼做电子传输 A hole blocking layer also serves as an electron transporting

空穴传输层兼做蓝色发光层/黄色发光层/空穴阻挡层兼 The hole transport layer also serves as a blue light-emitting layer / yellow light emitting layer / hole blocking layer-cum

空穴传输层/蓝色发光层/黄色发光层/空穴阻挡层兼做 Hole transport layer / blue light emitting layer / yellow light emitting layer / hole blocking layer also serves

空穴传输层/黄色发光层/蓝色发光层/空穴阻挡层兼做[0064] ⑨柔性聚合物衬底玻璃/IT0/空穴传输层兼做蓝色发光层/黄色发光层/空穴阻挡层兼做电子传输层/阴极层 Hole transport layer / yellow light emitting layer / blue light emitting layer / hole blocking layer also serves as [0064] ⑨ a flexible polymer substrate glass / IT0 / hole transport layer also serves as a blue light-emitting layer / yellow light emitting layer / hole The barrier layer also serves as an electron transporting layer / cathode layer

[0065] ⑩柔性聚合物衬底玻璃/IT0/空穴传输层/蓝色发光层/黄色发光层/空穴阻挡 [0065] ⑩ flexible polymer substrate glass / IT0 / hole transporting layer / blue light emitting layer / yellow light emitting layer / hole blocking

层兼做电子传输层/阴极层 Layer also serves as an electron transporting layer / cathode layer

[0066] 以下是本发明的具体实施例: [0066] The following are specific embodiments of the present invention:

[0067] 实施例1 [0067] Example 1

[0068] 如图2所示,器件的结构中的发光层3,包括发出蓝光的荧光材料层31,发出黄光的磷光材料层32,空穴阻挡层兼做电子传输层4。 [0068] 2, the light emitting device in the layer structure 3, comprises a layer of fluorescent material 31 emits blue light, emitted yellow phosphor layer 32, a hole blocking layer, electron transport layer 4 also serves.

[0069] 器件的发出蓝光的荧光材料层为NPB,发出黄光的磷光材料层为(tbt)2Ir(acaC), 空穴阻挡层兼做电子传输材料BCP,阴极层用Mg:Ag合金。 Phosphor layer emits blue fluorescent material layer [0069] The device is NPB, yellow light is emitted (tbt) 2Ir (acaC), a hole blocking layer also serves as an electron transporting material BCP, a cathode layer was Mg: Ag alloy. 整个器件结构描述为: [0070] 玻璃衬底/IT0/NPB(30nm)/(tbt)2Ir(acac) (lnm)/BCP (20nm)/Mg: Ag (100nm) [0071] 制备方法如下: The entire device structure is described as: [0070] Glass substrate / IT0 / NPB (30nm) / (tbt) 2Ir (acac) (lnm) / BCP (20nm) / Mg: Ag (100nm) [0071] was prepared as follows:

[0072] ①利用洗涤剂、乙醇溶液和去离子水对透明导电基片ITO玻璃进行超声清洗,清洗后用干燥氮气吹干。 [0072] ① using detergent, deionized water and ethanol solution of a transparent conductive ITO glass substrate is subjected to ultrasonic washing, drying with dry nitrogen gas purge. 其中玻璃衬底上面的ITO膜作为器件的阳极层,ITO膜的方块电阻为10Q/ 口,膜厚为180nm。 Wherein the glass substrate above the ITO film as an anode layer of the device, the sheet resistance of the ITO film was 10Q / port, a thickness of 180nm.

[0073] ②将干燥后的基片移入真空室,在气压为20Pa的氧气压环境下对ITO玻璃进行低能氧等离子预处理10分钟,溅射功率为〜20W。 [0073] ② The dried substrate into the vacuum chamber, air pressure is carried out at an oxygen pressure of 20Pa environment ITO glass low energy oxygen plasma pretreatment 10 min, sputtering power is ~20W.

[0074] ③将处理后的基片在高真空度的蒸发室中,开始进行有机薄膜的蒸镀。 [0074] ③ The treated substrate in a high vacuum chamber, evaporation, vapor-deposition of an organic thin film. 按照如上所述器件结构依次蒸镀的空穴传输层兼做蓝色发光层材料NPB为30nm,黄色发光材料(tbt)2Ir(acac)为lnm,空穴阻挡层兼做电子传输材料BCP层20nm。 Jianzuo blue light emitting layer material according NPB hole transport layer as described above were deposited in the device structure of 30nm, a yellow luminescent material (tbt) 2Ir (acac) as lnm, also serves as a hole blocking layer, an electron transport layer material BCP 20nm . 各有机层的蒸镀速率0. lnm/s,蒸镀速率及厚度由安装在基片附近的膜厚仪监控。 Vapor deposition rate of each organic layer 0. lnm / s, and the thickness of the vapor deposition rate is monitored by the film thickness meter mounted in the vicinity of the substrate.

[0075] ④在有机层蒸镀结束后进行金属电极的制备。 Preparation of the metal electrode [0075] ④ performed after the organic layer deposition. 其气压为3X10—卞a,蒸镀速率为〜 lnm/s,合金中Mg, Ag比例为〜10 : 1,膜层厚度为100nm。 Bian 3X10- air pressure of a, the deposition rate of ~ lnm / s, the alloy Mg, Ag ratio of ~ 10: 1, a film thickness of 100nm. 蒸镀速率及厚度由安装在基片附近的膜厚仪监控。 And the thickness of the vapor deposition rate is monitored by the film thickness meter mounted in the vicinity of the substrate.

[0076] ⑤将做好的器件传送到手套箱进行封装,手套箱为99. 9%氮气氛围。 [0076] ⑤ will be well transferred to a glove box for a device package, a glove box was 99.9% nitrogen atmosphere. [0077] ⑥测试器件的电流_电压_亮度特性,同时测试器件的发光光谱参数。 [0077] ⑥ current voltage _ _ luminance characteristics of the device under test, while the emission spectrum of the device test parameters. [0078] 器件在10V正向驱动下压的发光光谱参见附图4。 [0078] The emission spectrum of the device at forward driving voltage 10V Refer to Figure 4. [0079] 实施例2 [0079] Example 2

[0080] 如图3所示,器件的结构中的发光层3,包括发出蓝光的荧光材料层31,发出黄光的磷光材料层32,空穴阻挡层兼做电子传输层4。 [0080] As shown in FIG. 3, the light emitting device in the layer structure 3, it comprises a layer of fluorescent material 31 emits blue light, emitted yellow phosphor layer 32, a hole blocking layer, electron transport layer 4 also serves.

[0081] 器件的空穴传输材料为NPB,发出蓝光的荧光材料层为NPB,发出黄光的磷光材料层材料为(tbt)Jr(acac),空穴阻挡层兼做电子传输材料BCP,阴极层用Mg:Ag合金。 Fluorescent material layer [0081] device is the hole transport material NPB, blue light is emitted NPB, issued yellow phosphor layer material (tbt) Jr (acac), a hole blocking layer also serves as an electron transporting material BCP, cathode Ag alloy: layers with Mg. 整个器件结构描述为: The entire device structure is described as:

[0082] 玻璃衬底/IT0/NPB(20nm)/(tbt)2Ir(acac) (lnm)/NPB(5nm)/BCP(20nm)/ Mg:Ag(100nm) [0082] Glass substrate / IT0 / NPB (20nm) / (tbt) 2Ir (acac) (lnm) / NPB (5nm) / BCP (20nm) / Mg: Ag (100nm)

[0083] 器件的制备流程与实施例1相似。 [0083] The fabrication process of the device is similar to Example 1. [0084] 实施例3 [0084] Example 3

[0085] 如图3所示,器件的结构中的发光层3,包括发出蓝光的荧光材料层31,发出黄光的磷光材料层32,空穴阻挡层兼做电子传输层4。 [0085] As shown in FIG. 3, the light emitting device in the layer structure 3, it comprises a layer of fluorescent material 31 emits blue light, emitted yellow phosphor layer 32, a hole blocking layer, electron transport layer 4 also serves. [0086] 器件的空穴传输材料为PVK,发出蓝光的荧光材料层为NPB,发出黄光的磷光材料层为(tbt)Jr(acac),空穴阻挡层兼做电子传输材料BCP,阴极层用Mg:Ag合金。 Phosphor layer fluorescent material layer [0086] device is the hole transport material PVK, blue light is emitted NPB, yellow light is emitted (tbt) Jr (acac), a hole blocking layer also serves as an electron transporting material BCP, the cathode layer with Mg: Ag alloy. 整个器件结构描述为: The entire device structure is described as:

[0087] 玻璃衬底/IT0/PVK(50nm)/(tbt)2Ir(acac) (lnm)/NPB(5nm)/BCP(20nm)/ Mg:Ag(100nm) [0087] Glass substrate / IT0 / PVK (50nm) / (tbt) 2Ir (acac) (lnm) / NPB (5nm) / BCP (20nm) / Mg: Ag (100nm)

[0088] ①利用洗涤剂、乙醇溶液和去离子水对透明衬底进行超声清洗,清洗后用干燥氮气吹干; [0088] ① using detergent, deionized water and ethanol solution of the transparent substrate subjected to ultrasonic washing, drying after cleaning with dry nitrogen;

[0089] ②将透明衬底传送至真空蒸发室中进行电极的制备,所述电极包括阳极层或者阴极层; [0089] ② transmits the transparent substrate to a vacuum evaporation chamber electrode is prepared, the electrode comprises an anode layer or a cathode layer;

[0090] ③将制备好电极的透明衬底移入真空室,在氧气压环境下对进行低能氧等离子预处理; [0090] ③ The prepared transparent substrate into a vacuum chamber of a good electrode of low energy oxygen plasma pre-treatment under an oxygen pressure of the environment;

[0091] ④将处理后的透明衬底在旋涂机中进行有机薄膜的旋涂,按照器件结构依次旋涂有机功能层,所述有机功能层包括发光层、载流子传输层和(或)注入层和缓冲层; [0092] ⑤在有机层旋涂结束后在高真空度的蒸发室中进行另一个电极的制备,所述电极包括阴极层或者阳极层; [0091] ④ The transparent substrate treated by spin coating an organic thin film in a spin coater, the device according to the structure of the organic functional layer was successively spin-coating, the functional organic layer comprises an emission layer, a carrier transport layer (or ) injection and buffer layers; [0092] preparation of the other electrode ⑤ high degree of vacuum in the evaporation chamber at the end of the spin-coated organic layer, said electrode comprising a cathode layer or the anode layer;

[0093] ⑥将做好的器件传送到手套箱进行封装,手套箱为氮气氛围; [0093] ⑥ will be well transferred to a glove box for a device package, a nitrogen atmosphere glove box;

[0094] ⑦测试器件的电流_电压_亮度特性,同时测试器件的发光光谱参数。 [0094] Current luminance characteristics ⑦ _ _ voltage testing device, while the emission spectrum of the device under test parameters.

[0095] 实施例4 [0095] Example 4

[0096] 如图3所示,器件的结构中的发光层3,包括蓝色荧光发光层31,黄色磷光发光层32,空穴阻挡层兼做电子传输层4。 [0096] As shown in FIG. 3, the light emitting layer 3 in the device structure, the light emitting layer 31 includes a blue phosphor, a yellow phosphor emitting layer 32, a hole blocking layer, electron transport layer 4 also serves.

[0097] 器件的空穴传输材料为PS:TPD,发出蓝光的荧光材料层材料为NPB,发出黄光的磷光材料层材料为(tbt)Jr(acac),空穴阻挡层兼做电子传输材料BCP,阴极层用Mg:Ag合金。 [0097] The hole transporting material of the device is PS: TPD, emitting blue fluorescent material layer material for the NPB, the phosphor layer emits yellow material (tbt) Jr (acac), a hole blocking layer also serves as an electron transport material Ag alloy: BCP, a Mg cathode layer. 整个器件结构描述为: The entire device structure is described as:

[0098] 玻璃衬底/IT0/PS:TPD(50nm)/(tbt)2Ir(acac) (lnm)/NPB(5nm)/BCP(20nm)/ Mg:Ag(100nm) [0098] Glass substrate / IT0 / PS: TPD (50nm) / (tbt) 2Ir (acac) (lnm) / NPB (5nm) / BCP (20nm) / Mg: Ag (100nm)

[0099] 器件的制备流程与实施例3相似。 [0099] The fabrication process of the device is similar to Example 3. [0100] 实施例5 [0100] Example 5

[0101] 如图3所示,器件的结构中的发光层3,包括发出蓝光的荧光材料层31,发出黄光的磷光材料层32,空穴阻挡层兼做电子传输层4。 [0101] As shown in FIG. 3, the light emitting device in the layer structure 3, it comprises a layer of fluorescent material 31 emits blue light, emitted yellow phosphor layer 32, a hole blocking layer, electron transport layer 4 also serves.

[0102] 器件的空穴传输材料为m-TDATA,发出蓝光的荧光材料层材料为NPB,发出黄光的磷光材料层材料为(tbt)Jr(acac),空穴阻挡层兼做电子传输材料BCP,阴极层用Mg:Ag合金。 [0102] the hole transporting material of the device is m-TDATA, emitting blue fluorescent material layer material for the NPB, the phosphor layer emits yellow material (tbt) Jr (acac), a hole blocking layer also serves as an electron transport material Ag alloy: BCP, a Mg cathode layer. 整个器件结构描述为: The entire device structure is described as:

[0103] 玻璃衬底/IT0/m-TDATA(30nm)/(tbt)2Ir(acac) (lnm)/NPB(5nm)/BCP(20nm)/ Mg:Ag(100nm) [0103] Glass substrate / IT0 / m-TDATA (30nm) / (tbt) 2Ir (acac) (lnm) / NPB (5nm) / BCP (20nm) / Mg: Ag (100nm)

[0104] 器件的制备流程与实施例1相似。 [0104] The fabrication process of the device is similar to Example 1. [0105] 实施例6 [0105] Example 6

[0106] 如图3所示,器件的结构中的发光层3,包括发出蓝光的荧光材料层31,发出黄光的磷光材料层32,空穴阻挡层兼做电子传输层4。 [0106] As shown in FIG. 3, the light emitting device in the layer structure 3, it comprises a layer of fluorescent material 31 emits blue light, emitted yellow phosphor layer 32, a hole blocking layer, electron transport layer 4 also serves.

[0107] 器件的空穴传输层材料为TPD,发出蓝光的荧光材料层材料为NPB,发出黄光的磷光材料层材料为(tbt)2Ir (acac),空穴阻挡层兼做电子传输材料为BCP,阴极层用Mg:Ag合金。 A fluorescent material layer material [0107] The hole transport layer material of the device is TPD, blue light is emitted NPB, issued yellow phosphor layer material (tbt) 2Ir (acac), a hole blocking layer also serves as the electron transport material Ag alloy: BCP, a Mg cathode layer. 整个器件结构描述为: The entire device structure is described as:

[0108] 玻璃衬底/IT0/TPD(20nm)/(tbt)2Ir(acac) (lnm)/NPB(5nm)/BCP(20nm)Z Mg:Ag(100nm) [0108] Glass substrate / IT0 / TPD (20nm) / (tbt) 2Ir (acac) (lnm) / NPB (5nm) / BCP (20nm) Z Mg: Ag (100nm)

[0109] 器件的制备流程与实施例1相似。 [0109] The fabrication process of the device is similar to Example 1.

Claims (6)

  1. 一种具有超薄层结构的有机电致发光器件,包括透明衬底、阳极层、阴极层和设置在阳极层和阴极层之间的有机功能层,其中一种电极位于透明衬底表面,所述有机功能层包括发光层,其特征在于,所述发光层包括以下组合层中的一种:A、所述发光层为发出蓝光的荧光材料层和发出黄光的磷光材料层,在外加电源的驱动下,发出白光;B、所述发光层为发出绿光的荧光材料层和发出黄光的磷光材料层的组合层,在外加电源的驱动下发出黄绿光;其中所述的发出黄光的磷光材料层均采用超薄层结构,厚度为1nm。 Thin layer structure having an organic electroluminescent device comprising a transparent substrate, an anode layer, a cathode layer and an organic functional layer disposed between the anode and cathode layers, wherein an electrode surface of the transparent substrate, the said organic functional layer including a light emitting layer, wherein said light emitting layer comprises one of the following combinations of layers: phosphor layer a, the light-emitting layer emits blue light and emits yellow fluorescent material layer, and the applied power under drive, emits white light; B, the light emitting layer is a layer of a fluorescent material emitting green light and the phosphor layer emits a combination of layers of yellow, yellow-green light emitted at a driving external power source; wherein the yellow light emitted phosphor layer are made of thin layer structure, a thickness of 1nm.
  2. 2. 根据权利要求1所述的具有超薄层结构的有机电致发光器件,其特征在于,所述有机功能层还包括空穴注入层、空穴传输层、电子阻挡层、空穴阻挡层、电子传输层中的一种或几种。 The organic electroluminescent device having a thin layer structure according to claim 1, wherein the organic functional layer further comprises a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer , the electron transport layer is one or more.
  3. 3. 根据权利要求1或2所述的具有超薄层结构的有机电致发光器件,其特征在于,所述发出蓝光的荧光材料层是芳香族二胺类化合物、星形三苯胺化合物、咔唑类聚合物、金属配合物、DPVBi、BCzVB、Perylene和BczVBi中的一种或者多种;所述芳香族二胺类化合物是N,N'-双-(3-甲基苯基)-N,N'-二苯基-[l,l'-联苯基]-4,4'-二胺或者N,N'-双(3-萘基)-N, N' - 二苯基-[1 , 1' - 二苯基]-4, 4' - 二胺,所述星形三苯胺化合物是三_[4- (5-苯基-2-噻吩基)苯]胺或者m-TDATA,所述咔唑类聚合物是聚乙烯咔唑,所述金属配合物是BAlq。 According to claim 3 having a structure with a thin layer 12 or the organic electroluminescent device, characterized in that the fluorescent material layer emits blue light are aromatic diamine compounds, triphenylamine compounds star, carbazole azole polymer, metal complex, DPVBi, BCzVB, Perylene and BczVBi of one or more; the aromatic diamine compound is N, N'- bis - (3-methylphenyl) -N , N'- diphenyl - [l, l'- biphenyl] -4,4'-diamine or N, N'- bis (3-naphthyl) -N, N '- diphenyl - [ 1, 1 '- diphenyl] -4, 4' - diamine, the star is a three triphenylamine compounds _ [4- (5-phenyl-2-thienyl) phenyl] amine or m-TDATA, the carbazole-based polymer is a polyvinyl carbazole, said metal complexes are BAlq.
  4. 4. 根据权利要求1所述的具有超薄层结构的有机电致发光器件,其特征在于,发出黄光的磷光材料层材料是基于Ir、 Pt、 0s、 Ru、 Rh或Cu的配合物发光材料。 The ultrathin layers having a structure according to claim 1 organic electroluminescent device, wherein the yellow phosphorescence material layer material is based on complex Ir, Pt, 0s, Ru, Rh or Cu emission material.
  5. 5. 根据权利要求4所述的具有超薄层结构的有机电致发光器件,其特征在于,所述发出黄光的磷光材料层材料是(tbt)2Ir(acac)或(BT)2Ir (acac) Ir (3_piq)2 (acac)或Ir(3_cf3piq)2(ac£ic)或Ir (3_mf2piq) 2 (acac)或Ir (3_f2piq) 2 (acac)或Ir (MDPP) 2 (acac)或Ir(DPP)2(acac)或Ir (BPP)2(acac) (CF3_bo)2Ir(acac)或Ir(DPA-Flpy)3或Ir(DPA-Flpy)2(acac) [Cu(phen) (POP) ]PF6系列材料。 According to claim layer structure having a thin organic electroluminescent device of claim 4, wherein the phosphor layer material emits yellow light is (tbt) 2Ir (acac) or (BT) 2Ir (acac ) Ir (3_piq) 2 (acac) or Ir (3_cf3piq) 2 (ac £ ic) or Ir (3_mf2piq) 2 (acac) or Ir (3_f2piq) 2 (acac) or Ir (MDPP) 2 (acac) or Ir ( DPP) 2 (acac) or Ir (BPP) 2 (acac) (CF3_bo) 2Ir (acac) or Ir (DPA-Flpy) 3 or Ir (DPA-Flpy) 2 (acac) [Cu (phen) (POP)] PF6 series material.
  6. 6. 根据权利要求2所述的具有超薄层结构的有机电致发光器件,其特征在于,所述空穴阻挡层所用的材料是聚N-乙烯基咔唑、BCP、二(2-甲基-8-喹啉酸根合)三苯基硅烷醇铝(ni)、二(2-甲基-8-喹啉酸根合)4-苯酚铝(III)和二(2-甲基-8-喹啉酸根合)4-苯基苯酚铝(III)中的一种或者多种。 According to claim ultrathin layer structure having an organic electroluminescent device of claim 2, wherein the hole blocking layer material used is poly N- vinylcarbazole, the BCP, bis (2- phosphinato-8-quinolinolato) aluminum, triphenyl silanol (ni), bis (2-methyl-8-quinolinolato phosphinato) 4-phenol aluminum (III) and bis (2-methyl-8- quinoline phosphinato) one or more of 4-phenyl phenol, aluminum (III) is.
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