Monodisperse Copper Chalcogenide Nanocrystals: Controllable Synthesis and the Pinning of Plasmonic Resonance Absorption
文献类型：期刊论文
| 作者 | Wang, Feifan1,2; Li, Qi1; Lin, Li3; Peng, Hailin3; Liu, Zhongfan3; Xu, Dongsheng1,2 |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2015-09-23 |
| 卷号 | 137期号:37页码:12006-12012 |
| 英文摘要 | Controllable synthesis of copper chalcogenide nanocrystals (NCs), including desired geometry, composition and surrounding environment, is of high significance for the modulation of their optoelectronic response and the corresponding applications. Herein, copper nitride nanopartides have been used as "uncontaminated" copper precursors to synthesize copper chalcogenide NCs with high monodispersity through a one-pot strategy. In this protocol, the sizes and compositions of NCs can be readily controlled by varying the ratio of the precursors. For Cu2-xS NCs with different diameters, the size variations are all smaller than 5.6%. Furthermore, the plasmonic properties of the copper chalcogenide NCs are investigated under a steady state by tuning the plasmonic resonance absorption band to a limiting condition (denoted "pinning" phenomena). It is observed that the pinning frequency increases (from 1.09 to 1.23 eV) with the increment of the NC size (from 5.4 +/- 0.3 to 11.1 +/- 0.4 nm), explained by introducing surface scattering. Meanwhile, the frequencies of ternary alloyed copper sulfide selenide NCs blue-shift from 0.90 to 1.00 eV with the increase of selenium content from 11% to 66%, which is related to the effective mass of free carriers. Additionally, the plasmonic absorption bands of Cu2-xS NCs encapsulated by two single-layer graphene pin at 1525-1550 nm during the oxidation process, which is influenced by both the dielectric constant and redox potential of the surrounding environment. This study demonstrates the controllable synthesis and precise fundamental plasmonic properties of the copper chalcogenide NCs, ensuring the potential plasmonic-related techniques with high efficiency, accuracy and excellent spatial resolution. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28817]  |
| 专题 | 化学研究所_分子动态与稳态结构实验室 |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China 2.Peking Univ, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Ctr Nanochem,Beijing Sci & Engn Ctr Nanocarbons, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Feifan,Li, Qi,Lin, Li,et al. Monodisperse Copper Chalcogenide Nanocrystals: Controllable Synthesis and the Pinning of Plasmonic Resonance Absorption[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2015,137(37):12006-12012. |
| APA | Wang, Feifan,Li, Qi,Lin, Li,Peng, Hailin,Liu, Zhongfan,&Xu, Dongsheng.(2015).Monodisperse Copper Chalcogenide Nanocrystals: Controllable Synthesis and the Pinning of Plasmonic Resonance Absorption.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,137(37),12006-12012. |
| MLA | Wang, Feifan,et al."Monodisperse Copper Chalcogenide Nanocrystals: Controllable Synthesis and the Pinning of Plasmonic Resonance Absorption".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 137.37(2015):12006-12012. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。