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
Fig. 1. (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.
Fig. 2. 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.
Fig. 3. 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.
Fig. 4. 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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Received: Mar. 30, 2025
Accepted: --
Published Online: Jul. 14, 2025
The Author Email: Haitao DAI (htdai@tju.edu.cn)