Nanoscale quantitative chemical mapping of conjugated polymer blends

被引：99

作者：

McNeill, CR

Watts, B

Thomsen, L

Belcher, WJ

Greenham, NC

Dastoor, PC

机构：

[1] Cavendish Lab, Cambridge CB3 0HE, England

[2] Univ Newcastle, Sch Math & Phys Sci, Newcastle, NSW 2308, Australia

来源：

NANO LETTERS | 2006年 / 6卷 / 06期

关键词：

D O I：

10.1021/nl060583w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Utilizing scanning transmission X-ray microscopy (STXM), we present a quantitative chemical analysis of the bulk composition of spin-coated blends of poly(9,9-dioctylfluorene-co-N-(4-butylphenyl)diphenylamine) (TFB) and poly(9,9'-dioctylfluorene-co-benzothiadiazole) (F8BT) used in efficient polymer light emitting diodes. With a lateral resolution of 50 nm, we reveal nanoscale subsurface chemical structure and show that in particular while blend composition remains constant within the TFB-rich domain, in the F8BT- rich phase there is an enrichment of F8BT at the domain interface.

引用

页码：1202 / 1206

页数：5

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