纳米团簇
核(代数)
光致发光
材料科学
金属
纳米技术
光电子学
数学
冶金
组合数学
作者
Yue Zhou,Lingwen Liao,Shengli Zhuang,Yan Zhao,Zibao Gan,Wanmiao Gu,Jin Li,Haiteng Deng,Nan Xia,Zhikun Wu
标识
DOI:10.1002/anie.202016692
摘要
Abstract 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.
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