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Structural characterization of conjugated polyelectrolyte electron transport layers by NEXAFS spectroscopy
- Authors
- Park, Juhyun; Yang, Renqiang; Hoven, Corey V.; Garcia, Andres; Fischer, Daniel A.; Nguyen, Thuc-Quyen; Bazan, Guillermo C.; DeLongchamp, Dean M.
- Issue Date
- Jul-2008
- Publisher
- WILEY-V C H VERLAG GMBH
- Citation
- ADVANCED MATERIALS, v.20, no.13, pp 2491 - 2496
- Pages
- 6
- Journal Title
- ADVANCED MATERIALS
- Volume
- 20
- Number
- 13
- Start Page
- 2491
- End Page
- 2496
- ISSN
- 0935-9648
1521-4095
- Abstract
- NEXAFS spectroscopy of conjugated polyelectrolytes used as the electron transport layer in polymer light-emitting diodes reveals a substrate-dependent accumulation of charged groups at the surface (see figure). The measurements are also consistent with a preferential orientation of tetrahedral counterions at the surface.
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