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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)

  • Mar
    17

    Winter exams begin

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Monday, March 17, 2025

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    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Mar
    22

    Spring Break Begins

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Saturday, March 22, 2025

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    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Mar
    31

    Spring Break Ends

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Monday, March 31, 2025

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    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Jun
    15

    2024-2025 Commencement Ceremony

    University Academic Calendar

    All Day

    EVENT DETAILSmore info

    TIME Sunday, June 15, 2025

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    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Jun
    16

    Northwestern Engineering PhD Hooding and Master's Degree Recognition Ceremony

    McCormick School of Engineering and Applied Science

    9:00 AM 2705 Ashland Ave

    EVENT DETAILS

    TIME Monday, June 16, 2025 at 9:00 AM - 11:00 AM

    LOCATION 2705 Ashland Ave   

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    CONTACT Northwestern Engineering Events    northwestern-engineering-events@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Jun
    16

    Northwestern Engineering Undergraduate Convocation

    McCormick School of Engineering and Applied Science

    2:00 PM 2705 Ashland Ave

    EVENT DETAILSmore info

    TIME Monday, June 16, 2025 at 2:00 PM - 4:00 PM

    LOCATION 2705 Ashland Ave   

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    CONTACT Northwestern Engineering Events    northwestern-engineering-events@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science