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    • 1. 发明申请
    • COLOUR SOURCE AND METHOD FOR ITS FABRICATION
    • 颜色来源及其制造方法
    • WO1995031515A1
    • 1995-11-23
    • PCT/SE1995000549
    • 1995-05-16
    • FORSKARPATENT I LINKÖPING ABANDERSSON, Mats, RolandBERGGREN, Rolf, MagnusGUSTAFSSON, Bengt, GöranHJERTBERG, Ulf, ThomasINGANÄS, Olle, WernerGRANSTRÖM, Arne, Magnus
    • FORSKARPATENT I LINKÖPING AB
    • C09K11/06
    • H01L51/5036H01L51/0035H01L51/0036H01L51/0038H01L51/5012Y10S428/917Y10T428/31504
    • A light emitting polymer diode device for obtaining voltage controlled colours, based on thin polymer films incorporating more than one electroluminescent conjugated polymer and zero or more non-conjugated polymers, and where this polymer blend is formed by mixing the different polymers in a common solvent, which electroluminescent polymers phase separate in the polymer blend with domains of polymers that have a diameter comparable with the thickness of the polymer film, where the polymer film is sandwiched between two electrodes, one of which injects electrons and one which injects holes, possibly with electron and hole transport layers in between the polymer layer and the electrodes, and where the electrons and holes form excitons in the polymer film leading to emission of photons with colours determined by the bandgap of the emitting materials, and in which the more than one conjugated polymers have different emission colours, and where the polymers of lower bandgap emit light at a lower applied voltage than that which is necessary to induce light emission from the higher bandgap material, and where separation of the electroluminescent polymers from each other by the non-conjugated polymer effectively prevents the transfer of excitons from the higher bandgap polymer to that of lower bandgap, leading to an effective control of the colour of emission by applied voltage.
    • 一种用于获得电压控制颜色的发光聚合物二极管器件,其基于掺入多于一种电致发光共轭聚合物和零种或多种非共轭聚合物的薄聚合物膜,并且其中通过将不同聚合物混合在常见溶剂中形成该聚合物共混物, 其中电致发光聚合物相在聚合物共混物中与具有与聚合物膜的厚度相当的直径的聚合物域分离,其中聚合物膜夹在两个电极之间,其中一个电极注入电子,一个注入空穴,可能与电子 以及聚合物层和电极之间的空穴传输层,并且其中电子和空穴在聚合物膜中形成激子,导致光子的发射,其颜色由发射材料的带隙确定,并且其中多于一个的共轭聚合物 具有不同的发射颜色,而下带隙聚合物在a处发光 较低的施加电压比从较高带隙材料诱发光发射所需的电压低,并且其中通过非共轭聚合物彼此分离电致发光聚合物有效地防止了激子从较高带隙聚合物转移到较低带隙聚合物 ,导致通过施加电压有效地控制发射的颜色。