IN-SITU RAPID ANNEALING AND OPERATION OF SOLAR CELLS FOR EXTREME ENVIRONMENT APPLICATIONS

    公开(公告)号:US20240332446A1

    公开(公告)日:2024-10-03

    申请号:US18740143

    申请日:2024-06-11

    摘要: Method and apparatus for annealing micro-scale or macro solar cells that can contain lithium. Heaters, a current that is applied in forward or reverse direction, or open-circuiting the cells are used optionally with a laser or other light source to increase the temperature of the cells to perform periodic anneals to recover energy conversion efficiency lost due to environmental conditions such as radiation damage and maintain desired operational conditions. While a small amount of energy is used for heating up the small thermal mass of the micro-cells and macro cells to the desired annealing temperature, much larger amounts of additional energy is harvested with the improved efficiency of the cells. Maintaining a desired temperature for operation of cells takes very little energy owing to the small thermal mass of the cells and controlled thermal conduction of the materials in contact with the cells.

    OPTICAL DETECTION DEVICE AND SIGNAL PROCESSING METHOD

    公开(公告)号:US20240332323A1

    公开(公告)日:2024-10-03

    申请号:US18610629

    申请日:2024-03-20

    申请人: TDK Corporation

    摘要: An optical detection device includes first photoelectric conversion element that outputs first output when first photoelectric conversion element is irradiated with light pulse, and second photoelectric conversion element that outputs second output when second photoelectric conversion element is irradiated with light pulse. The optical detection device is configured to combine first signal caused by first output and second signal caused by second output when first photoelectric conversion element and second photoelectric conversion element are irradiated with same light pulse each other, in a state where first condition and second condition are satisfied. The first condition is condition that time position of peak of first signal is different from time position of peak of second signal. The second condition is condition that sign of amount of change until the first signal reaches the peak is different from a sign of the amount of change until the second signal reaches the peak.

    METHOD OF PATTERNING A THIN-FILM PHOTOVOLTAIC LAYER STACK

    公开(公告)号:US20240322057A1

    公开(公告)日:2024-09-26

    申请号:US18680927

    申请日:2024-05-31

    申请人: First Solar, Inc.

    摘要: A method of patterning a thin-film photovoltaic layer stack includes the steps of providing a continuous layer stack comprising a planar substrate, a first electrode layer on the substrate and a photovoltaic layer on the first electrode layer, immersing the layer stack into an electrically conductive solution, applying a bias voltage between the electrolyte solution and the first electrode layer and converting a first material or a first material composition provided in at least a first portion of the layer stack into a first reaction product by an electrochemical reaction, wherein the first reaction product has an electrical conductivity that is lower than an electrical conductivity of the first material or first material composition, or removing a first material or a first material composition provided in at least a first portion of the layer stack by an electrochemical reaction.