{"title":"Near-infrared luminescence AgPd alloy superatomic clusters","authors":"Xiao-Hong Ma, Jian-Hua Qin, Fei-Fan Wang, Peng Luo, Xi-Yan Dong","doi":"10.1039/d4qi02655a","DOIUrl":null,"url":null,"abstract":"Atomically precise superatomic nanoclusters have attracted considerable interest due to their remarkable structures and intriguing photoluminescence properties. Nevertheless, achieving a high photoluminescence quantum yield (PLQY) in the near-infrared (NIR) region of superatomic nanoclusters continues to pose a considerable challenge. Here, we report a novel bimetallic nanocluster prepared utilizing an alloying strategy, formulated as [Ag<small><sub>14</sub></small>Pd(PFBT)<small><sub>6</sub></small>(TPP)<small><sub>8</sub></small>](TPP) (abbreviated as <strong>Ag<small><sub>14</sub></small>Pd</strong>). Notably, this cluster demonstrates a remarkable NIR emission, achieving a PLQY of 15% in the solid state, which is rare for metal nanoclusters. Both experimental and theoretical analyses indicate that <strong>Ag<small><sub>14</sub></small>Pd</strong> exhibits a characteristic 8-electron superatomic structure with a 1S<small><sup>2</sup></small>1P<small><sup>6</sup></small> electronic shell closure. Furthermore, due to their bright luminescence and exceptional photostability, <strong>Ag<small><sub>14</sub></small>Pd</strong> clusters hold promising potential for applications as NIR inks for three-dimensional (3D) printing of various objects and models.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"12 1","pages":""},"PeriodicalIF":6.1000,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Chemistry Frontiers","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4qi02655a","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
Atomically precise superatomic nanoclusters have attracted considerable interest due to their remarkable structures and intriguing photoluminescence properties. Nevertheless, achieving a high photoluminescence quantum yield (PLQY) in the near-infrared (NIR) region of superatomic nanoclusters continues to pose a considerable challenge. Here, we report a novel bimetallic nanocluster prepared utilizing an alloying strategy, formulated as [Ag14Pd(PFBT)6(TPP)8](TPP) (abbreviated as Ag14Pd). Notably, this cluster demonstrates a remarkable NIR emission, achieving a PLQY of 15% in the solid state, which is rare for metal nanoclusters. Both experimental and theoretical analyses indicate that Ag14Pd exhibits a characteristic 8-electron superatomic structure with a 1S21P6 electronic shell closure. Furthermore, due to their bright luminescence and exceptional photostability, Ag14Pd clusters hold promising potential for applications as NIR inks for three-dimensional (3D) printing of various objects and models.