Ordered Superparticles with an Enhanced Photoelectric Effect by Sub-Nanometer Interparticle Distance
文献类型：期刊论文
| 作者 | Luo, Dan1,2; Qin, Xiaoyun1,3; Song, Qian1,3; Qiao, Xuezhi1,3; Zhang, Zhen1,3; Xue, Zhenjie1,3; Liu, Cong1,3; Mo, Guang3,4; Wang, Tie1,3 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2017-11-24 |
| 卷号 | 27期号:44 |
| 关键词 | Electronic Energy Transfer Qd Coupling Self-assembly Superparticles |
| 英文摘要 | As the development in self-assembly of nanoparticles, a main question is directed to whether the supercrystalline structure can facilitate generation of collective properties, such as coupling between adjacent nanocrystals or delocalization of exciton to achieve band-like electronic transport in a 3D assembly. The nanocrystal surfaces are generally passivated by insulating organic ligands, which block electronic communication of neighboring building blocks in nanoparticle assemblies. Ligand removal or exchange is an operable strategy for promoting electron transfer, but usually changes the surface states, resulting in performance alteration or uncontrollable aggregation. Here, 3D, supercompact superparticles with well-defined superlattice domains through a thermally controlled emulsion-based self-assembly method is fabricated. The interparticle spacing in the superparticles shrinks to approximate to 0.3 nm because organic ligands lie prone on the nanoparticle surface, which are sufficient to overcome the electron transfer barrier. The ordered and compressed superstructures promote coupling and electronic energy transfer between CdSSe quantum dots (QDs). Therefore, the acquired QD superparticles exhibit different optical properties and enhanced photoelectric activity compared to individual QDs. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38319]  |
| 专题 | 化学研究所_活体分析化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.China Univ Petr, Inst New Energy, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Dan,Qin, Xiaoyun,Song, Qian,et al. Ordered Superparticles with an Enhanced Photoelectric Effect by Sub-Nanometer Interparticle Distance[J]. ADVANCED FUNCTIONAL MATERIALS,2017,27(44). |
| APA | Luo, Dan.,Qin, Xiaoyun.,Song, Qian.,Qiao, Xuezhi.,Zhang, Zhen.,...&Wang, Tie.(2017).Ordered Superparticles with an Enhanced Photoelectric Effect by Sub-Nanometer Interparticle Distance.ADVANCED FUNCTIONAL MATERIALS,27(44). |
| MLA | Luo, Dan,et al."Ordered Superparticles with an Enhanced Photoelectric Effect by Sub-Nanometer Interparticle Distance".ADVANCED FUNCTIONAL MATERIALS 27.44(2017). |
入库方式： OAI收割
来源：化学研究所
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