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    • 8. 发明申请
    • A SINGLE-PHOTON DETECTOR AND APPLICATIONS OF SAME
    • 单光子检测器及其应用
    • WO2007038600A3
    • 2007-11-29
    • PCT/US2006037679
    • 2006-09-27
    • UNIV NORTHWESTERNMOHSENI HOOMAN
    • MOHSENI HOOMAN
    • H01L31/00
    • H01L27/14643
    • A semiconductor photodetector for photon detection without the use of avalanche multiplication, and capable of operating at low bias voltage and without excess noise. In one embodiment, the photodetector comprises a plurality of InP/ AlInGa As/ AlGa As Sb layers, capable of spatially separating the electron and the hole of an photo-generated electron-hole pair in one layer, transporting one of the electron and the hole of the photo- generated electron-hole pair into another layer, focalizing it into a desired volume and trapping it therein, the desired volume having a dimension in a scale of nanometers to reduce its capacitance and increase the change of potential for a trapped carrier, and a nano-inj ector, capable of inj ecting carriers into the plurality of InP/ AlInGaAs/ AlGaAsSb layers, where the carrier transit time in the nano-inj ector is much shorter than the carrier recombination time therein, thereby causing a very large carrier recycling effect.
    • 一种用于光子检测的半导体光电检测器,不使用雪崩倍增,并且能够在低偏置电压下工作且无过多噪声。 在一个实施例中,光电检测器包括多个InP / AlInGaAs / AlGaAs Sb层,其能够在一层中空间分离电子和空穴中的光电子 - 空穴对,传输电子和孔中的一个 将光生成的电子 - 空穴对分成另一层,将其聚焦成期望的体积并将其捕获在其中,所需体积具有纳米尺度的尺寸以减小其电容并增加被捕获载体的电位变化, 以及能够将载流子注入多个InP / AlInGaAs / AlGaAsSb层的纳米注入器,其中纳米注入器中的载流子传播时间比其中的载流子复合时间短得多,从而导致非常大的载流子 回收效果。