Pure DNA as an Efficient Electron Blocking Layer

We report on fabrication and characterization of polymer light emitting diode by using a thin film of pure deoxyribonucleic acid as electron blocking layer (EBL). A thin film of phosphorescent Ir(ppy) 3 luminophore, embedded in the poly(N-vinylcarbazole) (PVK)/2-(4-tert-butylphenyl)-5-(4-biphenylyl)...

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Bibliographic Details
Published inMolecular Crystals and Liquid Crystals Vol. 604; no. 1; pp. 213 - 221
Main Authors Grykien, Remigiusz, Luszczynska, Beata, Glowacki, Ireneusz, Kajzar, Francois, Rau, Ileana
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 22.11.2014
Taylor & Francis Ltd
Subjects
BioLED
Blocking
Brightness
Crystals
Current density
Deoxyribonucleic acid
DNA
Efficiency
Emission
Light emitting diodes
Liquid crystal polymers
Liquid crystals
luminance
luminous efficiency
OLED
PBD
PVK
Thin films
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Summary:We report on fabrication and characterization of polymer light emitting diode by using a thin film of pure deoxyribonucleic acid as electron blocking layer (EBL). A thin film of phosphorescent Ir(ppy) 3 luminophore, embedded in the poly(N-vinylcarbazole) (PVK)/2-(4-tert-butylphenyl)-5-(4-biphenylyl)-1,3,4-oxadiazole (PBD) is used as emission layer. The obtained BioLED shows a good stability and its luminous efficiency is improved by ca 40% as compared to the case without EBL. The result shows that using the DNA layer one can either improve the OLED brightness at the same current density or operate at a significantly lower current density with the same brightness than without it.
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ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2014.968504