Chinese Journal of Liquid Crystals and Displays, Volume. 40, Issue 6, 809(2025)

Multi-peak emission gold clusters for optoelectronic application and temperature-dependent fluorescence properties

Zhenda CHEN1, Haitao DAI1、*, Xiaodong ZHANG1,2, Xichen HAO1, Jiachen DENG1, Yaxian CAO1, Arain SAMIA1, Ahmad ANEELA1, Changlong LIU1, Minxuan LI3, and Shouzhong FENG4
Author Affiliations
  • 1Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300350, China
  • 2Tianjin Key Laboratory of Brain Science and Neural Engineering, Medical School, Tianjin University, Tianjin 300072, China
  • 3China Railway Design Corporation, Tianjin 300308, China
  • 4Anhui Zhongyi New Material Technology Co. Ltd., Chuzhou 239599, China
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    Figures & Tables(4)
    (a) Structural diagram of Au24Cd1-MPA cluster and TPA-DCPP; (b) TEM image of TPA-DCPP/TOAB/AuCs nanoclusters; (c) Size distribution histogram of CS-AuCs nanoclusters, statistically total over 100 samples; (d) High-resolution TEM image of CS-AuCs nanoclusters; (e) EDS energy spectrum of CS-AuCs thin film on ITO glasses.
    UV-vis-NIR absorption spectra (a) and photoluminescence spectra (b) of CS-AuCs nanoclusters, AuCs and solid phase of TPA-DCPP; (c) PLE spectra of CS-AuCs nanoclusters for PL emission peak at 507 nm; (d) Schematic diagram and and excited-state electronic properties of the radiative transition structure of AuCs after the encapsulation by TPA-DCPP.
    Temperature-dependent absorption spectra (a), photoluminescence spectra (b), and transient fluorescence spectra at room temperature (c) and 70 ℃ (d) of CS-AuCs nanoclusters. The insets in (b) present the temperature-dependent evolution profiles of the emission peaks at 507 nm and 797 nm under thermal cycling conditions.
    Photoluminescence spectra (a) and normalized photoluminescence spectra (b) of thin films of CS-AuCs nanoclusters during heating process
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    Zhenda CHEN, Haitao DAI, Xiaodong ZHANG, Xichen HAO, Jiachen DENG, Yaxian CAO, Arain SAMIA, Ahmad ANEELA, Changlong LIU, Minxuan LI, Shouzhong FENG. Multi-peak emission gold clusters for optoelectronic application and temperature-dependent fluorescence properties[J]. Chinese Journal of Liquid Crystals and Displays, 2025, 40(6): 809

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    Paper Information

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    Received: Mar. 30, 2025

    Accepted: --

    Published Online: Jul. 14, 2025

    The Author Email: Haitao DAI (htdai@tju.edu.cn)

    DOI:10.37188/CJLCD.2025-0068

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