- Title
- Nanoscale quantitative chemical mapping of conjugated polymer blends
- Creator
- McNeill, Christopher R.; Watts, Benjamin; Thomsen, Lars; Belcher, Warwick J.; Greenham, Neil C.; Dastoor, Paul C.
- Relation
- Nano Letters Vol. 6, Issue 6, p. 1202-1206
- Publisher Link
- http://dx.doi.org/10.1021/nl060583w
- Publisher
- American Chemical Society
- Resource Type
- journal article
- Date
- 2006
- Description
- 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.
- Subject
- conjugated polymer blends; chemical mapping
- Identifier
- uon:1179
- Identifier
- http://hdl.handle.net/1959.13/26879
- Identifier
- ISSN:1530-6992
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