Unprecedented stacking-dependent piezoluminescence enhancement in atomically precise superatomic gold nanoclusters

Deciphering the structure-property relationship between cluster stacking and high-efficiency luminescence of metal nanoclusters is crucial for designing and synthesizing high-performance light-emitting materials and devices. Here, we successfully synthesized two polymorphic gold nanoclusters (Au
8
-C and Au
8
-P) and investigated their stacking-dependent piezoluminescence based on hydrostatic pressure. Under compression, Au
8
-C exhibits notable piezoluminescence enhancement. However, Au
8
-P presents monotonic piezoluminescence quenching. High-pressure structural characterizations confirm the existence of stacking-dependent anisotropic compression in Au
8
-C and Au
8
-P. Under high pressure, the columnar-stacked Au
8
-C shrinks faster along the
a
axis, increasing the aspect ratio (AR) of the fusiform Au
8
core. However, the layered Au
8
-P is compressed faster along the
c
axis, reducing the AR and leading to a flatter Au
8
core. High-pressure femtosecond transient absorption, time-resolved photoluminescence, and Raman spectra collaboratively confirm that differentiated anisotropic compression notably suppresses nonradiative loss caused by low-frequency vibrations of the Au
8
core, which is responsible for the piezoluminescence enhancement in Au
8
-C.

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Published: May 30, 2025
Vol/Issue: 11(22)

Authors

H

Hua-Yang Ru

Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.

J

Ji-Kun Yang

Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.

Y

Ya-Ni Yang

Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.

Q

Qiu-Yang Wan

Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.

M

Meng-Jie Zhu

Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.

J

Jia-Hua Hu

Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.

J

Jing Li

School of Science, Xuchang University, Xuchang 461000, P. R. China.

Q

Qi Li

Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China.

M

Meng Zhou

Department of Chemical Physics, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, P. R. China.

G

Gang Li

Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.

G

Gaosong Chen

Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.

Y

Yonggang Wang

School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China.

L

Lei Jiang

Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.

Y

Yuchen Wu

Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.

S

Shuang-Quan Zang

Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.

Cite This Article

Hua-Yang Ru, Ji-Kun Yang, Ya-Ni Yang, et al. (2025). Unprecedented stacking-dependent piezoluminescence enhancement in atomically precise superatomic gold nanoclusters. Science Advances, 11(22). https://doi.org/10.1126/sciadv.adv0298

Unprecedented stacking-dependent piezoluminescence enhancement in atomically precise superatomic gold nanoclusters

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