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Efficient white-light-emitting diodes based on poly(-vinylcarbazole) doped with blue fluorescent and orange phosphorescent materials
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10.1063/1.2214141
/content/aip/journal/apl/88/25/10.1063/1.2214141
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/25/10.1063/1.2214141
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Chemical structures of PVK, DPAVBi, and Os(bpftz) and a schematic illustration of the device configuration used in this study.

Image of FIG. 2.
FIG. 2.

EL spectra of devices formed using DPAVBi or Os(bpftz) : PVK-PBD as the emitting layer. Inset: energy level diagram for the devices having the configuration ITO/PEDOT/Blend/TPBI/Mg:Ag.

Image of FIG. 3.
FIG. 3.

PL (excited at ) and EL spectra of the doubly doped device at an applied voltage of . Inset: CIE color coordinates of the EL emissions from the DPAVBi-doped, Os(bpftz)-doped, and doubly doped devices.

Image of FIG. 4.
FIG. 4.

Plots of (a) current density and (b) luminance as functions of the applied voltage for both the blue and white PLEDs.

Image of FIG. 5.
FIG. 5.

Plots of external quantum efficiency and luminance efficiency as functions of current density for both the blue and white PLEDs.

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/content/aip/journal/apl/88/25/10.1063/1.2214141
2006-06-21
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Efficient white-light-emitting diodes based on poly(N-vinylcarbazole) doped with blue fluorescent and orange phosphorescent materials
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/25/10.1063/1.2214141
10.1063/1.2214141
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