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High-Efficiency Circularly Polarized Light-Emitting Diodes Based on Chiral Metal Nanoclusters.
Lu, Jianxun; Shao, Bingyao; Huang, Ren-Wu; Gutiérrez-Arzaluz, Luis; Chen, Shulin; Han, Zhen; Yin, Jun; Zhu, Hongwei; Dayneko, Sergey; Hedhili, Mohamed Nejib; Song, Xin; Yuan, Peng; Dong, Chunwei; Zhou, Renqian; Saidaminov, Makhsud I; Zang, Shuang-Quan; Mohammed, Omar F; Bakr, Osman M.
Afiliación
  • Lu J; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Shao B; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Huang RW; Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
  • Gutiérrez-Arzaluz L; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Chen S; Division of Physical Science and Engineering, Advanced Membranes and Porous Materials Center (AMPM), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Han Z; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Yin J; Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
  • Zhu H; Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong 999077, China.
  • Dayneko S; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Hedhili MN; Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia, Canada V8P 5C2.
  • Song X; The Imaging and Characterization Core Lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Yuan P; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Dong C; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Zhou R; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Saidaminov MI; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
  • Zang SQ; Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia, Canada V8P 5C2.
  • Mohammed OF; Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
  • Bakr OM; Division of Physical Science and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
J Am Chem Soc ; 146(6): 4144-4152, 2024 Feb 14.
Article en En | MEDLINE | ID: mdl-38315569
ABSTRACT
Circularly polarized light-emitting diodes (CP-LEDs) are critical for next-generation optical technologies, ranging from holography to quantum information processing. Currently deployed chiral luminescent materials, with their intricate synthesis and processing and limited efficiency, are the main bottleneck for CP-LEDs. Chiral metal nanoclusters (MNCs) are potential CP-LED materials, given their ease of synthesis and processability as well as diverse structures and excited states. However, their films are usually plagued by inferior electronic quality and aggregation-caused photoluminescence quenching, necessitating their incorporation into host materials; without such a scheme, MNC-based LEDs exhibit external quantum efficiencies (EQEs) < 10%. Herein, we achieve an efficiency leap for both CP-LEDs and cluster-based LEDs by using novel chiral MNCs with aggregation-induced emission enhancement. CP-LEDs using enantiopure MNC films attain EQEs of up to 23.5%. Furthermore, by incorporating host materials, the devices yield record EQEs of up to 36.5% for both CP-LEDs and cluster-based LEDs, along with electroluminescence dissymmetry factors (|gEL|) of around 1.0 × 10-3. These findings open a new avenue for advancing chiral light sources for next-generation optoelectronics.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Am Chem Soc Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
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XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Am Chem Soc Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos