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Quantum-dot and organic hybrid tandem light-emitting diodes with multi-functionality of full-color-tunability and white-light-emission

Author

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  • Heng Zhang

    (Southern University of Science and Technology)

  • Qiang Su

    (Southern University of Science and Technology)

  • Shuming Chen

    (Southern University of Science and Technology)

Abstract

Realizing of full-color quantum-dot LED display remains a challenge because of the poor stability of the blue quantum-dot and the immature inkjet-printing color patterning technology. Here, we develop a multifunctional tandem LED by stacking a yellow quantum-dot LED with a blue organic LED using an indium–zinc oxide intermediate connecting electrode. Under parallel connection and alternate-current driving, the tandem LED is full-color-tunable, which can emit red, green and blue primary colors as well as arbitrary colors that cover a 63% National Television System Committee color triangle. Under series connection and direct current driving, the tandem LED can emit efficient white light with a high brightness of 107000 cd m−2 and a maximum external quantum efficiency up to 26.02%. The demonstrated hybrid tandem LED, with multi-functionality of full-color-tunability and white light-emission, could find potential applications in both full-color-display and solid-state-lighting.

Suggested Citation

  • Heng Zhang & Qiang Su & Shuming Chen, 2020. "Quantum-dot and organic hybrid tandem light-emitting diodes with multi-functionality of full-color-tunability and white-light-emission," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16659-x
    DOI: 10.1038/s41467-020-16659-x
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    Cited by:

    1. Iman E. Shaaban & Ahmed S. Samra & Shabbir Muhammad & Swelm Wageh, 2022. "Design of Distributed Bragg Reflectors for Green Light-Emitting Devices Based on Quantum Dots as Emission Layer," Energies, MDPI, vol. 15(3), pages 1-17, February.
    2. Jiming Wang & Cuixia Yuan & Shuming Chen, 2024. "Household alternating current electricity plug-and-play quantum-dot light-emitting diodes," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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