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.
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收藏
页码：1202 / 1206
页数：5
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