Excited-State Energy Manipulation Enables Single-Layer White Light-Emitting Diodes to Simulate the Solar Spectrum (2025)

    Organic Electronic Devices

    • Xinrui Chen

      Xinrui Chen

      MIIT Key Laboratory of Advanced Display Materials and Devices, Jiangsu Engineering Research Center for Quantum Dot Display, School of Materials Science and Engineering, Institute of Optoelectronics & Nanomaterials, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China

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    • Feng-Ming Xie

      Feng-Ming Xie

      Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China

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    • Hengyang Xiang*

      Hengyang Xiang

      MIIT Key Laboratory of Advanced Display Materials and Devices, Jiangsu Engineering Research Center for Quantum Dot Display, School of Materials Science and Engineering, Institute of Optoelectronics & Nanomaterials, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China

      *Email: [emailprotected]

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    • Kai Zhang

      Kai Zhang

      Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa 999078, Macao, China

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    • Chiyu Guo

      Chiyu Guo

      Qingdao Innovation and Development Base, Harbin Engineering University, Qingdao 266000, China

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    • Chenghao Bi

      Chenghao Bi

      Qingdao Innovation and Development Base, Harbin Engineering University, Qingdao 266000, China

      More by Chenghao Bi

    • Run Wang

      Run Wang

      MIIT Key Laboratory of Advanced Display Materials and Devices, Jiangsu Engineering Research Center for Quantum Dot Display, School of Materials Science and Engineering, Institute of Optoelectronics & Nanomaterials, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China

    • Yashuang Guo

      Yashuang Guo

      MIIT Key Laboratory of Advanced Display Materials and Devices, Jiangsu Engineering Research Center for Quantum Dot Display, School of Materials Science and Engineering, Institute of Optoelectronics & Nanomaterials, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China

      More by Yashuang Guo

    • Yifei Wang

      Yifei Wang

      MIIT Key Laboratory of Advanced Display Materials and Devices, Jiangsu Engineering Research Center for Quantum Dot Display, School of Materials Science and Engineering, Institute of Optoelectronics & Nanomaterials, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China

      More by Yifei Wang

    • Jiazhuo Nie

      Jiazhuo Nie

      Laboratoire de Physique et d’Etude des Matériaux (LPEM) ESPCI Paris PSL University Sorbonne Université CNRS UMR 8213, 10 Rue Vauquelin, Paris F-75005, France

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    • Jian-xin Tang*

      Jian-xin Tang

      Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China

      Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa 999078, Macao, China

      *Email: [emailprotected]

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    • Zhuoying Chen*

      Zhuoying Chen

      Laboratoire de Physique et d’Etude des Matériaux (LPEM) ESPCI Paris PSL University Sorbonne Université CNRS UMR 8213, 10 Rue Vauquelin, Paris F-75005, France

      *Email: [emailprotected]

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    • Ruifeng Lu

      Ruifeng Lu

      Department of Applied Physics, School of Physics, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China

      More by Ruifeng Lu

    • Haibo Zeng*

      Haibo Zeng

      MIIT Key Laboratory of Advanced Display Materials and Devices, Jiangsu Engineering Research Center for Quantum Dot Display, School of Materials Science and Engineering, Institute of Optoelectronics & Nanomaterials, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China

      *Email: [emailprotected]

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    ACS Applied Materials & Interfaces

    Cite this: ACS Appl. Mater. Interfaces 2025, XXXX, XXX, XXX-XXX

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    Published April 29, 2025

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    Excited-State Energy Manipulation Enables Single-Layer White Light-Emitting Diodes to Simulate the Solar Spectrum (5)

    White light-emitting diodes (WLEDs) have been widely researched and applied for their characteristics of energy savings and environmentally friendliness. However, the spectrum of WLEDs is quite different from that of natural sunlight, and long-term use can have an impact on both physiological and psychological health. Three strategies have been designed to address the issue of spectral defects by revealing the exciton energy transfer and distribution behavior between multiple excited states. Here, single emitting layer (SEL)-WLEDs are designed to simulate the solar spectrum, which exhibits excellent spectral stability at different operating voltages, demonstrating that exciton distribution can maintain dynamic balance. In addition, these devices can accurately replicate sunlight during different time periods, with a high color rendering index (CRI ∼ 90) and a nearly 90% coverage in the human comfort region. Meanwhile, the ultraviolet, deep blue, and near-infrared regions were reduced by 100%, 80%, and 90%, respectively. These results indicate that the strategies are expected to be used to promote the physical and mental health of those who work in environments far from natural light for a long time.

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    • Electromagnetic radiation
    • Energy
    • Energy transfer
    • Excitons
    • Quantum mechanics

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    ACS Applied Materials & Interfaces

    Cite this: ACS Appl. Mater. Interfaces 2025, XXXX, XXX, XXX-XXX

    Click to copy citationCitation copied!

    Published April 29, 2025

    Publication History

    • Received

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    • Revised

    • Published

      online

    © 2025 American Chemical Society

    Request reuse permissions

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