Internal quantum efficiency and tunable colour temperature in monolithic white InGaN/GaN LED

Ilya E. Titkov, Amit Yadav, Vera L. Zerova, Modestas Zulonas, Andrey F. Tsatsulnikov, Wsevolod V. Lundin, Alexey V. Sakharov, Edik U. Rafailov

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    5 Citations (Scopus)

    Abstract

    Internal Quantum Efficiency (IQE) of two-colour monolithic white light emitting diode (LED) was measured by temperature dependant electro-luminescence (TDEL) and analysed with modified rate equation based on ABC model. External, internal and injection efficiencies of blue and green quantum wells were analysed separately. Monolithic white LED contained one green InGaN QW and two blue QWs being separated by GaN barrier. This paper reports also the tunable behaviour of correlated colour temperature (CCT) in pulsed operation mode and effect of self-heating on device performance.
    Original languageEnglish
    Title of host publicationGallium Nitride Materials and Devices IX
    EditorsJen-Inn Chyi, Yasushi Nanishi, Hadis Morkoç, Joachim Piprek, Euijoon Yoon, Hiroshi Fujioka
    Place of PublicationBellingham
    PublisherSPIE-International Society for Optical Engineering
    ISBN (Print)9780819498991
    DOIs
    Publication statusPublished - 2014
    EventSPIE Photonics West 2014: Gallium Nitride Materials and Devices IX - The Moscone Center, San Francisco, United States
    Duration: 3 Feb 20146 Feb 2014
    http://spie.org/x106299.xml

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume8986

    Conference

    ConferenceSPIE Photonics West 2014: Gallium Nitride Materials and Devices IX
    CountryUnited States
    CitySan Francisco
    Period3/02/146/02/14
    Internet address

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  • Research Output

    • 5 Citations
    • 1 Poster

    Internal and external quantum efficiencies of InGaN/GaN LEDs with shortperiod superlattice (SPSL)

    Titkov, I. E., Tsatsulnikov, A. F., Lundin, W. V., Sakharov, A. V., Yadav, A., Zerova, V. L. ., Zulonas, M. & Rafailov, E. U., 5 Feb 2014.

    Research output: Contribution to conferencePoster

    Activities

    • 2 Participation in conference

    SPIE Photonics West 2014: Gallium Nitride Materials and Devices IX

    Ilya Titkov (Participant)

    5 Feb 2014

    Activity: Participating in or organising an event typesParticipation in conference

    SPIE Photonics West 2014: Gallium Nitride Materials and Devices IX

    Edik U. Rafailov (Participant)

    5 Feb 2014

    Activity: Participating in or organising an event typesParticipation in conference

    Cite this

    Titkov, I. E., Yadav, A., Zerova, V. L., Zulonas, M., Tsatsulnikov, A. F., Lundin, W. V., Sakharov, A. V., & Rafailov, E. U. (2014). Internal quantum efficiency and tunable colour temperature in monolithic white InGaN/GaN LED. In J-I. Chyi, Y. Nanishi, H. Morkoç, J. Piprek, E. Yoon, & H. Fujioka (Eds.), Gallium Nitride Materials and Devices IX [89862A] (Proceedings of SPIE; Vol. 8986). SPIE-International Society for Optical Engineering. https://doi.org/10.1117/12.2040086