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- W2095492721 abstract "A series of six new n-type conjugated 1,8-naphthyridine oligomers were examined in organic light emitting diodes (OLEDs). The compounds show a high fluorescence in both solution (10−8 M) and the solid state. The naphthyridines have high glass-transition (Tg = 65–105 °C) and decomposition (Td = 380–400 °C) temperatures, reversible electrochemical reduction, and high electron affinities (2.79–3.00 eV). Systematic variation of the spacer linkage can modulate and fine-tune their properties. They emit high blue, green and yellow photoluminescence with 0.70–1.0 quantum yields. Good-performance, single-layer emitter OLEDs with yellow to white-pink emission have also been demonstrated using these materials. White-pink emitter give a performance with a high brightness (400 cd m−2 at 4 V), and 0.6 cd A−1. Yellow emitters give the best performance with maximum brightness of 250 cd m−2 with a maximum current efficiency of 1.2 cd A−1. These results demonstrate the potential of this new class of n-type conjugated oligomers as emitters and electron-transport materials for developing high-performance yellow to white-pink OLEDs." @default.
- W2095492721 created "2016-06-24" @default.
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- W2095492721 date "2012-01-01" @default.
- W2095492721 modified "2023-09-24" @default.
- W2095492721 title "Novel naphthyridine-based compounds in small molecular non-doped OLEDs: synthesis, properties and their versatile applications for organic light-emitting diodes" @default.
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- W2095492721 doi "https://doi.org/10.1039/c2nj40279c" @default.
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