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    • 1. 发明申请
    • INTERMEDIATE-BAND PHOTOSENSITIVE DEVICE WITH QUANTUM DOTS EMBEDDED IN ENERGY FENCE BARRIER
    • 具有嵌入式能量屏障的量子点的中间带感光器件
    • WO2008147392A2
    • 2008-12-04
    • PCT/US2007023447
    • 2007-11-06
    • UNIV PRINCETONUNIV MICHIGANFORREST STEPHEN RWEI GUODAN
    • FORREST STEPHEN RWEI GUODAN
    • H01L31/052
    • H01L31/035236B82Y10/00B82Y15/00B82Y20/00H01L31/09H01L31/18
    • A plurality of layers of a first semiconductor material and a plurality of dots-in-a-fence barriers disposed in a stack between a first electrode and a second electrode. Each dots-in-a- fence barrier consists essentially of a plurality of quantum dots of a second semiconductor material embedded between and in direct contact with two layers of a third semiconductor material. Wave functions of the quantum dots overlap as at least one intermediate band. The layers of the third semiconductor material are arranged as tunneling barriers to require a first electron and/or a first hole in a layer of the first material to perform quantum mechanical tunneling to reach the second material within a respective quantum dot, and to require a second electron and/or a second hole in a layer of the first semiconductor material to perform quantum mechanical tunneling to reach another layer of the first semiconductor material.
    • 多层第一半导体材料和多个点阵栅栏栅栏布置在第一电极和第二电极之间的堆叠中。 每个栅栏围栏屏障基本上由第二半导体材料的多个量子点组成,该第二半导体材料嵌入在与第三半导体材料的两层直接接触之间。 量子点的波函数作为至少一个中间带重叠。 第三半导体材料的层被布置为隧道势垒,以在第一材料的层中需要第一电子和/或第一孔,以进行量子力学隧道以在相应量子点内到达第二材料,并且要​​求 在第一半导体材料的层中的第二电子和/或第二孔,以进行量子力学隧道以到达第一半导体材料的另一层。