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- W2024249270 abstract "Abstract In this study, we used thermal evaporation with a low sublimation temperature (42 °C) to deposit 1,5-diaminoanthraquinone (DAAQ) in various morphologies—including nanorods, nanocornerstones, and nanofibers—onto various substrates. Three major factors influenced the growth of vertically aligned DAAQ nanofibers on the electrodes: a low water contact angle (WCA) for the substrate and intermolecular hydrogen bonding and π–π interactions between the DAAQ molecules. On Au and Ti substrates (low-WCA), the DAAQ nanofibers DAAQ-Au and DAAQ-Ti, respectively, possessed great verticality and high aspect ratios; they also exhibited field emission characteristics, with maximum emission current densities of 0.31 and 0.65 mA/cm2, respectively, at an applied electric field of 12 V/μm. The turn-on electric fields for producing a current density of 10 μA/cm2 were 8.5 V/μm for DAAQ-Au and 8.25 V/μm for DAAQ-Ti. From the slopes of Fowler–Nordheim plots, we calculated the field enhancement factors (β) of DAAQ-Au and DAAQ-Ti to be 447 and 831, respectively. Field emission stability studies revealed that the DAAQ nanofibers possessed outstanding anti-degrading capability. The emission current did not decrease, but rather increased slightly, after 3000 s. Given the advantages of this simple low-temperature process and the impressive anti-degrading field emission characteristics, such DAAQ nanofibers have great potential for use in various electronics applications (e.g., as organic field emitters)." @default.
- W2024249270 created "2016-06-24" @default.
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- W2024249270 date "2011-04-01" @default.
- W2024249270 modified "2023-10-18" @default.
- W2024249270 title "Low-temperature formation of self-assembled 1,5-diaminoanthraquinone nanofibers: Substrate effects and field emission characteristics" @default.
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- W2024249270 doi "https://doi.org/10.1016/j.orgel.2011.01.010" @default.
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