Straightening single-walled carbon nanotubes by helically wrapped poly(9, 9-dioctylfluorene) chains

被引：0

作者：

Guo, Xiao-Shuai ^{[1
]}

Zhang, Tian-Yu ^{[1
]}

Wang, Rui-Yang ^{[1
]}

Xu, Jun-Ting ^{[1
]}

Fan, Zhi-Qiang ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, MOE, Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2019年 / 471卷

基金：

中国国家自然科学基金;

关键词：

Carbon nanotube; Poly(9,9-dioctylfluorene); Straightening mechanism; Conformation; ELECTRONIC-STRUCTURE; YOUNGS MODULUS; BETA-PHASE; POLY(9,9-DIOCTYLFLUORENE); POLY(3-HEXYLTHIOPHENE); ALIGNMENT; ARRAYS; PHOTOLUMINESCENCE; CONFORMATION; TRANSISTORS;

D O I：

10.1016/j.apsusc.2018.12.024

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：

In the present work, we found that single-walled carbon nanotubes (SWCNTs) could be straightened by poly(9,9-dioctylfluorene) (PFO) chains with both alpha- and beta-conformations in different solvents. UV-vis and PL spectroscopic studies confirm that there exists pi-pi interaction between SWCNTs and PFO. SWCNTs are helically wrapped by the adsorbed PFO chains, which is different from the coaxial interaction between SWCNTs and poly (3-hexylthiophene) (P3HT). More stretched PFO beta-conformers have a stronger interaction with SWCNTs, and the interactions between SWCNTs and PFO slightly improve the conjugation length of beta-conformers in turn. We proposed that the straightening of SWCNTs by adsorbed rigid conjugated polymers is irrespective of interaction mode between them.

引用

页码：205 / 212

页数：8

共 71 条

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