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Traceless Removal of Two Kernel Atoms in a Gold Nanocluster and Its Impact on Photoluminescence
Author(s) -
Zhou Yue,
Liao Lingwen,
Zhuang Shengli,
Zhao Yan,
Gan Zibao,
Gu Wanmiao,
Li Jin,
Deng Haiteng,
Xia Nan,
Wu Zhikun
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202016692
Subject(s) - nanoclusters , kernel (algebra) , photoluminescence , materials science , metal , nanotechnology , optoelectronics , mathematics , metallurgy , combinatorics
Removing or adding kernel atoms of metal nanoclusters (NCs) without leaving a trace is a substantial challenge because the kernel atoms are inside and covered by the outer staples. However, such kernel tuning is very important for improving the properties and acquiring an in‐depth understanding of the kernel‐property correlation. Photoluminescence (PL) is one of the most intriguing characteristics of metal NCs but has not been well understood until now. Inspired by these challenges/questions, we conducted this study and, for the first time, achieved the traceless removal of two kernel atoms in a gold nanocluster by applying a simple thermal treatment and revealed its impact on PL. Further, we demonstrated that the kernel Au‐Au bond length can be an indicator for a comparison of the PL or kernel charge state between nanoclusters with similar kernel structures and sizes.