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2011 | 9 | 6 | 1126-1132
Article title

Synthesis and electronic spectra of new low-molecular weight compounds with possible application in electroluminescent layers

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EN
Abstracts
EN
Two new low-molecular weight compounds - (Z)-4-(4-(dimethylamino)benzylidene)-1-(9-ethyl-9H-carbazol-3-yl)-2-phenyl-1H-imidazol-5(4H)-one and 2-(6-hydroxyhexyl)-6-(pyrrolidin-1-yl)-1H-benzo[de]isoquinoline-1,3(2H)-dione) - with possible application in organic light-emitting devices were synthesized. Their photophysical properties in solution and in polymer films were investigated. The determined relative fluorescence quantum yields in solution for both compounds were 0.003 and 0.51, while those in poly(methyl methacrylate) films were around 0.10 and 1.0, respectively. For 1H-imidazol-5(4H)-one derivative, single-layer organic displays with one emitting layer were prepared by spin-coating technology. The applied voltage was 40 V (AC) with 1–3 KHz frequency. The emission maximum of the experimental AC display structures was at 600–630 nm. For displays with 2-(6-hydroxyhexyl)-6-(pyrrolidin-1-yl)-1H-benzo[de]isoquinoline-1,3(2H)-dione) the applied voltage was 60 V (AC) with 6-9 KHz frequency, but its future success will require more appropriate binding polymers. Based on the obtained experimental results, it is concluded that the investigated compounds could be applied for preparation of color electroluminescent structures. [...]
Publisher

Journal
Year
Volume
9
Issue
6
Pages
1126-1132
Physical description
Dates
published
1 - 12 - 2011
online
27 - 9 - 2011
Contributors
  • Department of Microelectronics, Technical University of Sofia, Sofia, 1000, Bulgaria
  • Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, 1113, Bulgaria, gmdob@orgchm.bas.bg
  • Department of Microelectronics, Technical University of Sofia, Sofia, 1000, Bulgaria
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-011-0098-3
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