Self-Assembly of Perylenediimide Nanobelts and Their Size-Tunable Exciton Dynamic Properties

被引：51

作者：

Cao, Xinqiang

Wu, Yishi

Fu, Hongbing ^{[1
]}

Yao, Jiannian

机构：

[1] Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2011年 / 2卷 / 17期

基金：

中国国家自然科学基金;

关键词：

SPECTRAL SIGNATURES; NANOSCALE SYSTEMS; DIIMIDE; EMISSION; CORE; NANOSTRUCTURES; STACKING;

D O I：

10.1021/jz2009488

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Upon the oxidation of perylenediimide dianion precursors, controlled release of neutral units paves the way for the solution-phase self-assembly of nanobelts via synergistic pi-pi stacking and hydrogen-bonding interactions. The obtained belt size has been regulated through adjusting the precursor supersaturation. This controlled synthesis also offers us an opportunity to explore size-tunable exciton dynamics features in the nanobelt, in which the competitive evolution to H-like exciton or excimer is found to be in strong relevance to the molecular packing and crystal size.

引用

收藏

页码：2163 / 2167

页数：5

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