Porous One-Dimensional Nanostructures through Confined Cooperative Self-Assembly

被引：72

作者：

Bai, Feng ^{[1
,2
]}

Sun, Zaicheng ^{[1
,3
]}

Wu, Huimeng ^{[4
]}

Haddad, Raid E. ^{[1
]}

Coker, Eric N. ^{[4
]}

Huang, Jian Yu ^{[4
]}

Rodriguez, Mark A. ^{[4
]}

Fan, Hongyou ^{[1
,4
]}

机构：

[1] Univ New Mexico, Dept Chem & Nucl Engn, NSF Ctr Microengn Mat, Albuquerque, NM 87131 USA

[2] Henan Univ, Minist Educ, Key Lab Special Funct Mat, Kaifeng 475004, Peoples R China

[3] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Peoples R China

[4] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA

来源：

NANO LETTERS | 2011年 / 11卷 / 12期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

Hierarchical nanostructure; nanoporous; self-assembly; one-dimensional nanowire and nanorod; j-aggregate; porphyrin; NANOTUBES;

D O I：

10.1021/nl203598n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a simple confined self-assembly process to synthesize nanoporous one-dimensional photoactive nanostructures. Through surfactant-assisted cooperative interactions (e.g., pi-pi stacking, ligand coordination, and so forth) of the macrocyclic building block, zinc meso-tetra (4-pyridyl) porphyrin (ZnTPyP), self-assembled ZnTPyP nanowires and nanorods with controlled diameters and aspect ratios are prepared. Electron microscopy characterization in combination with X-ray diffraction and gas sorption experiments indicate that these materials exhibit stable single-crystalline and high surface area nanoporous frameworks with well-defined external morphology. Optical characterizations using UV-vis spectroscopy and fluorescence imaging and spectroscopy show enhanced collective optical properties over the individual chromophores (ZnTPyP), favorable for exciton formation and transport.

引用

页码：5196 / 5200

页数：5

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