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    Method and Apparatus for Light Absorption and Charged Carrier Transport
    2.
    发明申请
    Method and Apparatus for Light Absorption and Charged Carrier Transport 审中-公开

    公开(公告)号：US20190019967A1

    公开(公告)日：2019-01-17

    申请号：US16122511

    申请日：2018-09-05

    Applicant: University of Florida Research Foundation, Inc.

    Inventor： Jiangeng Xue

    IPC: H01L51/42 ,  H01L51/00 ,  G03F7/00

    Abstract: Embodiments of the invention pertain to the use of alloyed semiconductor nanocrystals for use in solar cells. The use of alloyed semiconductor nanocrystals offers materials that have a flexible stoichiometry. The alloyed semiconductor may be a ternary semiconductor alloy, such as AxB1-xC or AB1-yCy, or a quaternary semiconductor alloy, such as AxByC1-x-yD, AxB1-xCyD1-y or ABxCyD1-x-y (where A, B, C, and D are different elements). In general, alloys with more than four elements can be used as well, although it can be much harder to control the synthesis and quality of such materials. Embodiments of the invention pertain to solar cells having a layer incorporating two or more organic materials such that percolated paths for one or both molecular species are created. Specific embodiments of the invention pertain to a method for fabricating nanostructured bulk heterojunction that facilitates both efficient exciton diffusion and charge transport. Embodiments of the subject invention pertain to a solar cell having an architecture that allows for efficient harvesting of solar energy. The organic solar cell architecture can incorporate a host/guest (or matrix/dopant) material system that utilizes the long diffusion lengths for triplet excitons without compromising light absorption efficiency.

    Quantum-dot based hybrid LED lighting devices
    8.
    发明授权
    Quantum-dot based hybrid LED lighting devices 有权

    公开(公告)号：US09735386B2

    公开(公告)日：2017-08-15

    申请号：US14774817

    申请日：2014-03-11

    Applicant: University of Florida Research Foundation, Inc.

    Inventor： Jiangeng Xue

    IPC: H01L51/50 ,  H01L51/52

    CPC classification number: H01L51/5036 ,  H01L51/5016 ,  H01L51/5275 ,  H01L2251/303 ,  H01L2251/5369

    Abstract: A white light source is a hybrid organic light emitting diode (OLED) device having an electroluminescent layer including a blue emitting organic phosphor or a combination of a green emitting organic phosphor with a blue emitting phosphor and a conversion layer including photoluminescent quantum dots (QDs) at or near the light exiting face of the hybrid OLED. The QDs down-convert a portion of the blue or blue and green light to higher wavelengths of visible light, where the combination of wavelengths exiting the device provides white light. The QDs can be within an array of microlenses on the light exiting surface of the hybrid OLED to enhance the efficiency of light emission from the electrically excited phosphors and the down-conversion QDs.

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