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A warm-white light-emitting diode based on single-component emitter aromatic carbon nitride

Author

Listed:
  • Yunhu Wang

    (Qingdao University of Science & Technology)

  • Kunpeng Wang

    (Qingdao University of Science & Technology)

  • Fangxu Dai

    (Qingdao University of Science & Technology)

  • Kai Zhang

    (Qingdao University of Science & Technology)

  • Haifeng Tang

    (Qingdao University of Science & Technology)

  • Lei Wang

    (Qingdao University of Science & Technology
    Qingdao University of Science & Technology)

  • Jun Xing

    (Qingdao University of Science & Technology)

Abstract

Artificial lighting consumes almost one-fifth of global electricity. As an efficient solid-state lighting technology, white light-emitting diodes (WLEDs) have received increasing attention. However, the white luminescence of the traditional WLEDs comes from multi-component emitters, which leads to complex device structure and unstable emitting color. Therefore, developing single-component materials with white-light electroluminescence is of significance for artificial lighting applications. Here, we fabricate single-component white-light electroluminescence devices based on an aromatic carbon nitride material and improve the performance of WLEDs by adjusting the carrier transport. The carbon nitride LEDs emit warm-white light, of which color coordinates and color temperature are (0.44, 0.52) and 3700 K. The optimized LEDs display a very low turn-on voltage of 3.2 V and achieve a milestone in the maximum luminance and external quantum efficiency of 1885 cd m−2 and 1.20%. Our findings demonstrate the low-cost carbon nitride materials have promising potential for single-component WLEDs application.

Suggested Citation

  • Yunhu Wang & Kunpeng Wang & Fangxu Dai & Kai Zhang & Haifeng Tang & Lei Wang & Jun Xing, 2022. "A warm-white light-emitting diode based on single-component emitter aromatic carbon nitride," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-34291-9
    DOI: 10.1038/s41467-022-34291-9
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    References listed on IDEAS

    as
    1. Jiajun Luo & Xiaoming Wang & Shunran Li & Jing Liu & Yueming Guo & Guangda Niu & Li Yao & Yuhao Fu & Liang Gao & Qingshun Dong & Chunyi Zhao & Meiying Leng & Fusheng Ma & Wenxi Liang & Liduo Wang & Sh, 2018. "Efficient and stable emission of warm-white light from lead-free halide double perovskites," Nature, Nature, vol. 563(7732), pages 541-545, November.
    2. Mingming Zhang & Lili Zhao & Jiahao Xie & Qian Zhang & Xiaoyu Wang & Najma Yaqoob & Zhengmao Yin & Payam Kaghazchi & San Zhang & Hua Li & Chunfeng Zhang & Lei Wang & Lijun Zhang & Weigao Xu & Jun Xing, 2021. "Molecular engineering towards efficientwhite-light-emitting perovskite," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
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    Cited by:

    1. Manli Huang & Zhanxiang Chen & Jingsheng Miao & Siyuan He & Wei Yang & Zhongyan Huang & Yang Zou & Shaolong Gong & Yao Tan & Chuluo Yang, 2024. "Harmonization of rapid triplet up-conversion and singlet radiation enables efficient and stable white OLEDs," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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