Non-doped, blue-emitting, color-stable, organic light-emitting diode based on 2,2':6',2 double prime -ternaphthalene

A novel non-doped blue-emitting material, 2,2':6',2 double prime -ternaphthalene (NNN), which is based on three naphthalene units forming a rodlike molecule, has been synthesized and characterized. Organic light-emitting diodes based on NNN as emitter exhibit blue emission with Commission...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2014-06, Vol.115 (3), p.731-735
Main Authors: Schwabegger, Guenther, Dingemans, Theo, Resel, Roland, Sitter, Helmut, Simbrunner, Clemens
Format: Article
Language:English
Subjects:
Crystal structure
Glass
Indium
Materials science
Naphthalene
Organic light-emitting diodes
Styrenes
Sulfonates
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Summary:A novel non-doped blue-emitting material, 2,2':6',2 double prime -ternaphthalene (NNN), which is based on three naphthalene units forming a rodlike molecule, has been synthesized and characterized. Organic light-emitting diodes based on NNN as emitter exhibit blue emission with Commission Internationale de l'Eclairage color coordinates of x = 0.18 and y = 0.11. In addition, the morphology and crystallographic structure of the NNN thin films has been investigated. NNN deposited on poly[3,4-(ethylenedioxy) thiophene]:poly (styrene sulfonate) on Indium Tin Oxide-covered glass forms crystalline structures of high crystallographic quality. The molecules are aligned almost perpendicular to the substrate surface and exhibit a tilt angle of 23 $\circ }$ .
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-014-8408-1