Charge carrier modulation for color and brightness coordination in organic light-emitting diodes

    公开(公告)号:US09627641B2

    公开(公告)日:2017-04-18

    申请号:US13825891

    申请日:2011-09-20

    IPC分类号: H01L51/52 H01L51/50 H01L51/56

    摘要: The device for charge carrier modulation is a current-controlled component, which has semiconductor layers arranged on top of each other. The organic semiconductor layers arranged on top of each other are an electron transport layer, which is arranged between a first and a second hole transport layer, and/or a hole transport layer, which is arranged between a first and a second electron transport layer. The respective central layer is the modulation layer having a contact for a modulation voltage. By applying a modulation voltage, a modulation current flow is generated over the modulation layer. The modulation current flow influences the component current flow which flows from the first into the second hole or electron transport layer via the respective modulation layer.