High Efficiency, Color Neutral, Semi-transparent Organic Photovoltaics for Energy Harvesting Windows

    公开(公告)号:US20240357842A1

    公开(公告)日:2024-10-24

    申请号:US18752940

    申请日:2024-06-25

    IPC分类号: H10K30/87 H10K30/30 H10K30/82

    CPC分类号: H10K30/87 H10K30/30 H10K30/82

    摘要: An organic photovoltaic device comprises a first electrode, at least one organic heterojunction layer positioned over the first electrode, a second electrode positioned over the organic heterojunction layer, and a thin film stack positioned over the second electrode, comprising a plurality of sublayers of a first dielectric material alternating with a plurality of sublayers of a second dielectric material, wherein at least one of the plurality of sublayers of the first dielectric material has a thickness that is different from another of the plurality of sublayers of the first dielectric material, wherein the organic photovoltaic device has a mean transmittance of between 10% and 100% for light between 420 nm and 670 nm, with a variance of ±10%, and wherein an index contrast between the sublayers in the thin film stack is at least 0.1. A method of fabricating an organic photovoltaic device is also disclosed.

    Cycle-by-cycle digital control of DC-DC converters

    公开(公告)号:US12095367B2

    公开(公告)日:2024-09-17

    申请号:US17348705

    申请日:2021-06-15

    摘要: A device for power conversion includes an inductor, a switch having a switching cycle to control current flow through the inductor, a sensor coupled to the inductor to generate a signal representative of the current flow through the inductor, and a controller configured to generate a switch control signal for the switch to implement cycle-by-cycle control of the switching cycle for current-mode control of an output driven by the current flow through the inductor, the controller being coupled to the sensor such that the cycle-by-cycle control is based on the signal representative of the current flow through the inductor. The inductor is configured to exhibit a decrease in inductance with an increase in the current flow through the inductor.