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    Materials and structures for enhancing the performance of organic light emitting devices
    21.
    发明授权
    Materials and structures for enhancing the performance of organic light emitting devices 有权
    用于增强有机发光器件性能的材料和结构

    公开(公告)号：US07018723B2

    公开(公告)日：2006-03-28

    申请号：US10626579

    申请日：2003-07-25

    申请人： Mark E. Thompson ,  Raymond Kwong ,  Yeh-Jiun Tung

    发明人： Mark E. Thompson ,  Raymond Kwong ,  Yeh-Jiun Tung

    IPC分类号： H05B33/12

    CPC分类号： H01L51/5048 ,  C07C13/567 ,  C07C13/66 ,  C07C15/24 ,  C07C15/38 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  H01L51/005 ,  H01L51/0052 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5016 ,  H01L2251/308 ,  H05B33/14 ,  Y10S428/917 ,  Y10T428/24942

    摘要： A device is provided, having an anode, a cathode, and a first organic layer disposed between the anode and the cathode. The first organic layer comprises a material that produces phosphorescent emission when a voltage is applied between the anode and the cathode. A second organic layer is disposed between the first organic layer and the cathode. The second organic layer is in direct contact with the first organic layer. The second organic layer may comprise an aromatic hydrocarbon material, comprising an aromatic hydrocarbon core optionally substituted, and wherein the substituents are the same or different, and each is selected from the group consisting of alkyl, aryl, heteroalkyl, substituted aryl, substituted heteroaryl and heterocyclic groups. The second organic layer may comprise a material having a dipole moment less than about 2.0 debyes, such that the device has an unmodified external quantum efficiency of at least about 3% and a lifetime of at least about 1000 hours at an initial luminance of about 100 to about 1000 cd/m2. The second organic layer may be in direct contact with the cathode, or there may be a separate organic layer between the second organic layer and the cathode.

    摘要翻译： 提供一种具有阳极，阴极和设置在阳极和阴极之间的第一有机层的器件。 第一有机层包括当在阳极和阴极之间施加电压时产生磷光发射的材料。 第二有机层设置在第一有机层和阴极之间。 第二有机层与第一有机层直接接触。 第二有机层可以包括芳族烃材料，其包含任选取代的芳族烃核心，并且其中取代基相同或不同，并且各自选自烷基，芳基，杂烷基，取代的芳基，取代的杂芳基和 杂环基。 第二有机层可以包括具有小于约2.0德拜的偶极矩的材料，使得该装置在约100的初始亮度下具有至少约3％的未修饰的外量子效率和至少约1000小时的寿命 至约1000cd / m 2。 第二有机层可以与阴极直接接触，或者在第二有机层和阴极之间可以存在单独的有机层。

    Color-tunable organic light emitting devices
    26.
    发明授权
    Color-tunable organic light emitting devices 有权
    彩色可调谐有机发光装置

    公开(公告)号：US06312836B1

    公开(公告)日：2001-11-06

    申请号：US09207799

    申请日：1998-12-09

    申请人： Vladimir Bulovic ,  Stephen R. Forrest ,  Mark E. Thompson

    发明人： Vladimir Bulovic ,  Stephen R. Forrest ,  Mark E. Thompson

    IPC分类号： H05B3314

    CPC分类号： H01L51/5036 ,  C09K11/06 ,  H01L51/0059 ,  H01L51/0062 ,  H01L51/0081 ,  H01L51/5012 ,  Y10S428/917

    摘要： A new method for tuning the emission spectrum of OLEDs while retaining a high luminescence efficiency wherein the emission spectrum of a polar luminescent molecule is wavelength shifted by as much as 70 nm when doped into a conductive host in a vacuum-deposited molecular organic light emitting device. The effect may be attributed to changes in the average dipole moment of the host thin film that are induced by the addition of highly dipolar dopant molecules. This phenomenon may be referred to as a “solid state solvation effect” in analogy to similar effects previously identified in solution chemistry. In experiments using singly doped devices, different concentrations of a polar laser dye known as DCM2 are doped in non-polar triaryl amine conductive host films. In these experiments, DCM2 performs the dual role of functioning both as the luminescent center and as the source of the increased spatially averaged dipole moment. In a second set of experiments using dual-doped devices, DCM2 is employed only as the luminescent center in a non-polar host, while a second polar dopant, aluminum tris(8-hydroxyquinoline) (Alq3), is introduced to generate the local dipole moment. By changing the concentration of Alq3, while keeping the DCM2 concentration fixed, the OLED emission may be tuned over a range of 30 nm. For the singly doped devices, the external luminescence quantum efficiency, &eegr;, decreases with dopant concentration due to aggregation induced quenching. However, for the dual-doped devices, &eegr; increases with an increase in the bathochromic shift.

    摘要翻译： 一种用于调节OLED的发射光谱同时保持高发光效率的新方法，其中当在真空沉积的分子有机发光器件中掺杂到导电主体中时，极化发光分子的发射光谱波长偏移多达70nm 。 该效应可归因于通过添加高度偶极掺杂剂分子而诱导的主体薄膜的平均偶极矩的变化。 类似于以前在溶液化学中确定的类似效应，这种现象可称为“固态溶剂化作用”。 在使用单掺杂器件的实验中，将不同浓度的称为DCM2的极性激光染料掺杂在非极性三芳基胺导电性主体膜中。 在这些实验中，DCM2具有作为发光中心和作为增加的空间平均偶极矩的源的双重作用。 在使用双掺杂器件的第二组实验中，DCM2仅用作非极性主体中的发光中心，而第二极性掺杂剂三（8-羟基喹啉）铝（Alq 3）被引入以产生局部 偶极矩 通过改变Alq3的浓度，同时保持DCM2浓度的固定，OLED发射可以调整在30nm的范围内。 对于单掺杂器件，由于聚集诱发的淬火，外部发光量子效率eta随着掺杂剂浓度而降低。 然而，对于双掺杂器件，eta随着红移变化的增加而增加。

    Electron transporting and light emitting layers based on organic free radicals
    29.
    发明授权
    Electron transporting and light emitting layers based on organic free radicals 失效
    基于有机自由基的电子传输和发光层

    公开(公告)号：US5811833A

    公开(公告)日：1998-09-22

    申请号：US774120

    申请日：1996-12-23

    申请人： Mark E. Thompson

    发明人： Mark E. Thompson

    IPC分类号： H01L51/00 ,  H01L51/30 ,  H01L51/40 ,  H01L51/50 ,  H01L51/52 ,  H01L35/24

    CPC分类号： H01L51/5088 ,  B82Y10/00 ,  H01L51/001 ,  H01L51/005 ,  H01L51/0077 ,  H01L51/5072 ,  H01L2251/308 ,  H01L2251/5315 ,  H01L51/002 ,  H01L51/0081 ,  H01L51/5206 ,  H01L51/5281

    摘要： Electron transporting layers comprised of organic free radicals are disclosed for use as the electron transporting layer in multi-layer structures that are useful for fabricating organic light emitting devices (OLEDs). For example, the multi-layer structure may include an electron transporting layer containing an organic free radical comprised of a multi-aryl-substituted cyclopentadienyl free radical of formula (I): ##STR1## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 and Ar.sub.5 each are, independently of the other hydrogen, an alkyl group or an unsubstituted or substituted aromatic group. More specifically, included among these materials are those which are comprised of an electron transporting material based on, the pentaphenylcyclopentadienyl Cp.sup..phi.. free radical: ##STR2##

    摘要翻译： 公开了由有机自由基组成的电子传输层用作可用于制造有机发光器件（OLED）的多层结构中的电子传输层。 例如，多层结构可以包括含有由式（I）的多芳基取代的环戊二烯基自由基组成的有机自由基的电子传输层：其中Ar1，Ar2，Ar3，Ar4 和Ar 5各自独立于其它氢，烷基或未取代或取代的芳族基团。 更具体地说，这些材料中包括由基于五苯基环戊二烯基Cp phi的电子传输材料构成的材料。 自由基：