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  • Feb
    5

    ECE Distinguished Seminar - Jiun-Haw Lee

    Department of Electrical and Computer Engineering (ECE)

    11:00 AM L440, Technological Institute

    EVENT DETAILS

    Organic light-emitting diode (OLED) is a main stream display technology, which has been used for watch, cell phone, pad, laptop, TV, and AR/VR/MR applications. Among three primary colors, blue organic light-emitting diode (OLED) exhibits much shorter lifetime than red and green ones due to its wide bandgap nature. Although red and green phosphors are commercially available for display application, low-efficiency fluorophore is still used for a blue OLED which barely achieves acceptable operation lifetime in mass production. In this talk, we propose a device structure, which managed non-emissive triplet excitons in a blue OLED by improving the triplet-triplet fusion (TTF) process for higher efficiency and reducing exciton-polaron quenching for longer lifetime. ~20% increase in device efficiency was observed in this blue TTF-OLED. More interestingly, 4x increase in operation lifetime was achieved in this device, verified by an OLED mass production line.

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    TIME Wednesday, February 5, 2025 at 11:00 AM - 12:00 PM

    LOCATION L440, Technological Institute    map it

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    CONTACT Catherine Healey    catherine.healey@northwestern.edu EMAIL

    CALENDAR Department of Electrical and Computer Engineering (ECE)

  • Jul
    31

    Designing interactive systems for reasoning with ontological uncertainty in data analysis

    Department of Computer Science (CS)

    2:00 PM ITW, Ford Motor Company Engineering Design Center

    EVENT DETAILS

    TIME Thursday, July 31, 2025 at 2:00 PM - 4:00 PM

    LOCATION ITW, Ford Motor Company Engineering Design Center    map it

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    CONTACT Wynante R Charles    wynante.charles@northwestern.edu EMAIL

    CALENDAR Department of Computer Science (CS)

  • Aug
    4

    Clustering without knowing the number of clusters.

    Department of Computer Science (CS)

    1:30 PM 3501, Mudd Hall ( formerly Seeley G. Mudd Library)

    EVENT DETAILS

    TIME Monday, August 4, 2025 at 1:30 PM - 4:00 PM

    LOCATION 3501, Mudd Hall ( formerly Seeley G. Mudd Library)    map it

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    CONTACT Wynante R Charles    wynante.charles@northwestern.edu EMAIL

    CALENDAR Department of Computer Science (CS)

  • Sep
    25

    Bagel Thursday

    Department of Computer Science (CS)

    9:00 AM

    EVENT DETAILS

    TIME Thursday, September 25, 2025 at 9:00 AM - 11:00 AM

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    CONTACT Wynante R Charles    wynante.charles@northwestern.edu EMAIL

    CALENDAR Department of Computer Science (CS)