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Study and compariso...
Study and comparison of conducting polymer hole injection layers in light emitting devices
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- Tengstedt, Carl, 1974- (author)
- Linköpings universitet,Institutionen för teknik och naturvetenskap,Tekniska högskolan
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- Crispin, Annica, 1972- (author)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan
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- Hsu, C. (author)
- Dupont Displays, The Experimental Station, Wilmington, USA
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- Zhang, C. (author)
- Dupont Displays, Santa Barbara, USA
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- Parker, I.D. (author)
- Dupont Displays, Santa Barbara, USA
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- Salaneck, William R, 1941- (author)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan
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- Fahlman, Mats, 1967- (author)
- Linköpings universitet,Institutionen för teknik och naturvetenskap,Tekniska högskolan
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(creator_code:org_t)
- Elsevier BV, 2005
- 2005
- English.
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In: Organic electronics. - : Elsevier BV. - 1566-1199 .- 1878-5530. ; 6:1, s. 21-33
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- A set of polyaniline- and poly(3,4-ethylene dioxythiophene)-based materials were studied as hole injection layers in polymer light emitting devices. The choice of polymeric counterion/dopant poly(styrenesulfonic acid), and poly(acrylamido-2-methyl-1-propanesulfonic acid), and poly(acrylamide) blended with polyaniline/poly(acrylamido-2-methyl-1-propanesulfonic acid) was found to influence both work function and film morphology, which in turn affects device performance. The work functions of the polymer films spanned the range of over 1 eV and the surface region of the films were found to be low in conducting polymer content compared to the bulk. This was particularly the case of the polyaniline/poly(acrylamido-2-methyl-1-propanesulfonic acid) blended with poly(acrylamide) which showed device efficiency equal to that of the poly(3,4-ethylene dioxythiophene)–poly(styrenesulfonic acid) reference. The turn on voltage, however, was significantly larger, likely due to the insulating poly(acrylamide)-rich surface region of the polyaniline/poly(acrylamido-2-methyl-1-propanesulfonic acid)/poly(acrylamide) film. The polymer blend of polyaniline/poly(styrenesulfonic acid) yielded the highest work function (5.5 ± 0.1 eV).
Keyword
- TECHNOLOGY
- TEKNIKVETENSKAP
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- ref (subject category)
- art (subject category)
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Tengstedt, Carl, ...
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Crispin, Annica, ...
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Hsu, C.
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Zhang, C.
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Parker, I.D.
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Salaneck, Willia ...
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Fahlman, Mats, 1 ...
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Organic electron ...
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Linköping University