Electroluminescent devices
    1.
    发明授权
    Electroluminescent devices 失效
    电致发光器件

    公开(公告)号:US5247190A

    公开(公告)日:1993-09-21

    申请号:US634117

    申请日:1990-12-28

    摘要: An electroluminescent device comprises a semiconductor layer (4) in the form of a thin dense polymer film comprising at least one conjugated polymer, a first contact layer (5) in contact with a first surface of the semiconductor layer, and a second contact layer (3) in contact with a second surface of the semiconductor layer. The polymer firm (4) of the semiconductor layer has a sufficiently low concentration of extrinsic charge carriers that on applying an electric field between the first and second contact layers across the semiconductor layer so as to render the second contact layer positive relative to the first contact layer charge carriers are injected into the semiconductor layer and radiation is emitted from the semiconductor layer. The polymer film can be poly(p-phenyenevinylene) [PPV] of formula (I) wherein the phenylene ring may optionally carry one or more substituents each independently selected from alkyl (preferably methyl), alkoxy (preferably methoxy or ethoxy), halogen (preferably chlorine or bromine) or nitro.

    摘要翻译: PCT No.PCT / GB90 / 00584 Sec。 371 1990年12月28日第 102(e)日期1990年12月28日PCT 1990年4月18日提交PCT公布。 公开号WO90 / 13148 日期:1990年11月1日。电致发光器件包括半致密聚合物薄膜形式的半导体层(4),该薄膜包含至少一种共轭聚合物,与半导体层的第一表面接触的第一接触层 以及与半导体层的第二表面接触的第二接触层(3)。 半导体层的聚合物固体(4)具有足够低的非本征电荷载流子浓度,其在半导体层之间施加第一和第二接触层之间的电场,以使第二接触层相对于第一接触点为正 层电荷载流子注入到半导体层中,并从半导体层发射辐射。 聚合物膜可以是式(I)的聚(对苯乙烯)[PPV],其中亚苯基环可以任选地带有一个或多个取代基,各自独立地选自烷基(优选甲基),烷氧基(优选甲氧基或乙氧基),卤素 优选氯或溴)或硝基。

    Method of manufacturing of electrolumineschent devices
    4.
    发明授权
    Method of manufacturing of electrolumineschent devices 失效
    电致发光器件的制造方法

    公开(公告)号:US5399502A

    公开(公告)日:1995-03-21

    申请号:US50348

    申请日:1993-05-05

    摘要: An electroluminescent device includes a semiconductor layer (4) in the form of a thin dense polymer film comprising at least one conjugated polymer, a first contact layer (5) in contact with a first surface of the semiconductor layer, and a second contact layer (3) in contact with a second surface of the semiconductor layer. The polymer film (4) of the semiconductor layer has a sufficiently low concentration of extrinsic charge carriers that on applying an electric field between the first and second contact layers across the semiconductor layer so as to render the second contact layer positive relative to the first contact layer charge carriers are injected into the semiconductor layer and radiation is emitted from the semiconductor layer. The polymer film can be poly (p-phenyenevinylene) [PPV] of formula (I) wherein the phenylene ring may optionally carry one or more substituents each independently selected from alkyl (preferably methyl), alkoxy (preferably methoxy or ethoxy), halogen (preferably chlorine or bromine) or nitro. A method of manufacture of an electroluminescent device includes steps of depositing a thin layer of a precursor polymer onto a substrate and then heating the precursor polymer to a high temperature to form the conjugated polymer.

    摘要翻译: 电致发光器件包括半致密聚合物薄膜形式的半导体层(4),该半导体层包括至少一种共轭聚合物,与半导体层的第一表面接触的第一接触层(5)和第二接触层( 3)与半导体层的第二表面接触。 半导体层的聚合物膜(4)具有足够低的非本征电荷载流子浓度,其在半导体层之间施加第一和第二接触层之间的电场以使第二接触层相对于第一接触为正 层电荷载流子注入到半导体层中,并从半导体层发射辐射。 聚合物膜可以是式(I)的聚(对苯乙烯)[PPV],其中亚苯基环可以任选地带有一个或多个取代基,各自独立地选自烷基(优选甲基),烷氧基(优选甲氧基或乙氧基),卤素 优选氯或溴)或硝基。 电致发光器件的制造方法包括以下步骤:将前体聚合物的薄层沉积到衬底上,然后将前体聚合物加热到高温以形成共轭聚合物。