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Electroluminescent orthofused thiophene dye embedded in polyvinylcarbazole
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10.1063/1.2358304
/content/aip/journal/jap/100/8/10.1063/1.2358304
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/8/10.1063/1.2358304

Figures

Image of FIG. 1.
FIG. 1.

Structure of (a) dye1, (b) PVK, and (c) PBD.

Image of FIG. 2.
FIG. 2.

Absorption and PL spectra of dye1 solution (lower spectra) and film (upper spectra); PL spectrum of PVK film (dotted line) is also reported. Spectra are translated for clarity.

Image of FIG. 3.
FIG. 3.

PL spectra of doped PVK with increasing weight ratio of dye1 (0%, 0.05%, 0.28%, 0.5%, 1%, and 100%) from the left to the right. In the inset the experimental transfer efficiencies (solid squares) are reported with the fit of the theoretical Föerster efficiency (solid line) from Eq. (2). Spectra are measured at room temperature by exciting at .

Image of FIG. 4.
FIG. 4.

PL (solid line, excitation at ) and EL (dotted line, biased at ) spectra of ITO/PEDOT:PSS/dye1:PVK/Ca/Al device. In the inset, PL QY (solid squares) and QE (open squares) of the blend as a function of the dopant concentration.

Image of FIG. 5.
FIG. 5.

Current density-voltage-luminance characteristics of ITO/PEDOT:PSS/dye1:PVK/Ca/Al (open squares) and ITO/PEDOT:PSS/dye1:PBD:PVK/Ca/Al devices (solid squares).

Image of FIG. 6.
FIG. 6.

PL (solid line, excitation at ) and EL (dotted line, biased at ) spectra of ITO/PEDOT:PSS/dye1:PBD:PVK/Ca/Al device. Energy level diagram of components (inset) is also reported.

Tables

Generic image for table
Table I.

Photoluminescence quantum yield and performance parameters of single layer devices ITO/PEDOT:PSS/blend/Ca/Al with different dye concentrations with respect to the matrix.

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/content/aip/journal/jap/100/8/10.1063/1.2358304
2006-10-23
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electroluminescent orthofused thiophene dye embedded in polyvinylcarbazole
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/8/10.1063/1.2358304
10.1063/1.2358304
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