Quantum-size-effect accommodation of gold clusters with altered fluorescence of dyes
文献类型：期刊论文
| 作者 | Liu, Xianhu1,2; Wu, Yishi1; Li, Shuanghao3; Zhao, Yan3; Yuan, Chengqian1,2; Jia, Meiye1; Luo, Zhixun1; Fu, Hongbing1,4; Yao, Jiannian1 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:39页码:30610-30616 |
| 英文摘要 | We have synthesized monodispersed Au-25 nanoclusters (NCs) stabilized with eco-friendly glutathione and report here an insight into their interactions with dye molecules. In the presence of such gold NCs, consistent fluorescence quenching was observed for all the dye molecules that we examined in this study regardless of their maximum emission wavelengths. The steady-state and time-resolved spectroscopic results demonstrate that the weakened luminance is associated with the protective ligand pertaining to a static quenching mechanism. Having expounded this issue, we further employed proper laser irradiation enabling dissociation of Au-25(SG)(18) so as to attain a transformation of nonplasmonic NCs into plasmonic gold nanoparticles (NPs) via photo-assisted aggregation of the dissociated gold clusters. As a result, emission enhancement for these dyes was observed, which is largely attributed to the local electromagnetic field enhancement of gold NPs. The alternation of fluorescence quenching to emission enhancement reflects an accommodation of quantum size effects upon the ligand-stabilized gold clusters. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-11-03 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28613]  |
| 专题 | 化学研究所_分子动态与稳态结构实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, BNLMS, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China 2.GUCAS, Beijing 100049, Peoples R China 3.Beijing Univ Technol, Inst Laser Engn, Beijing 100022, Peoples R China 4.Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xianhu,Wu, Yishi,Li, Shuanghao,et al. Quantum-size-effect accommodation of gold clusters with altered fluorescence of dyes[J]. RSC ADVANCES,2015,5(39):30610-30616. |
| APA | Liu, Xianhu.,Wu, Yishi.,Li, Shuanghao.,Zhao, Yan.,Yuan, Chengqian.,...&Yao, Jiannian.(2015).Quantum-size-effect accommodation of gold clusters with altered fluorescence of dyes.RSC ADVANCES,5(39),30610-30616. |
| MLA | Liu, Xianhu,et al."Quantum-size-effect accommodation of gold clusters with altered fluorescence of dyes".RSC ADVANCES 5.39(2015):30610-30616. |
入库方式： OAI收割
来源：化学研究所
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