2020
DOI: 10.1039/d0tc03864d
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One-pot synthesis of a stable and cost-effective silver particle-free ink for inkjet-printed flexible electronics

Abstract: Silver particle-free inks display immense superiority and potential over silver nanoparticle-based inks in the aspect of synthesis, flexibility and low-temperature processing, which has attracted considerable research interest as an alternative...

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Cited by 25 publications
(19 citation statements)
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References 59 publications
(67 reference statements)
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“…When the circuit was turned on, the resistivity of the circuit was suddenly decreased from 1219 to 7.7 × 10 –6 Ω·m within 1.1 s (Figure d). The conductivities of other metal-based conductive inks like Ag and Cu nanoparticles were 3.7 to 199 μΩ·cm , and 1.8 to 1200 μΩ·cm, , respectively. Moreover, the conductivity of the conducted PVA-LM ink was 1.3 × 10 5 S/m, which was much higher than those of other conductive composites such as carbon-based composite materials (0.1–8.2 S/m), conductive polymers (1–40 S/m), and metallic salts (0–10 S/m). Therefore, this high conductivity ink can be utilized to fabricate wearable devices with high performance and low energy consumption.…”
Section: Resultsmentioning
confidence: 99%
“…When the circuit was turned on, the resistivity of the circuit was suddenly decreased from 1219 to 7.7 × 10 –6 Ω·m within 1.1 s (Figure d). The conductivities of other metal-based conductive inks like Ag and Cu nanoparticles were 3.7 to 199 μΩ·cm , and 1.8 to 1200 μΩ·cm, , respectively. Moreover, the conductivity of the conducted PVA-LM ink was 1.3 × 10 5 S/m, which was much higher than those of other conductive composites such as carbon-based composite materials (0.1–8.2 S/m), conductive polymers (1–40 S/m), and metallic salts (0–10 S/m). Therefore, this high conductivity ink can be utilized to fabricate wearable devices with high performance and low energy consumption.…”
Section: Resultsmentioning
confidence: 99%
“…A specific conductivity of 3 × 10 3 ± 6 × 10 3 S m −1 was calculated using eqn (1) at a thickness of 5.5 ± 0.5 μm (see Experimental section). This conductivity is three orders of magnitude below that reported for AgNP-based inkjet inks after sintering at 100–400 °C for at least 30 min to two hours 50–55 but above that reported for dry PEDOT:PSS films (0.02–0.2 S m −1 56 ). Resistance measurements were repeated 24 h after deposition and calculated average conductivity was 1.7 × 10 6 S m −1 ± 0.3 × 10 6 S m −1 .…”
Section: Resultsmentioning
confidence: 53%
“…This particle-free ink was simply prepared by dissolving sparingly soluble Ag 2 C 2 O 4 powder into the solvent containing 1,2-diaminopropane­(1,2-DAP), where 1,2-DAP was chosen as the ligand in this ink to react with silver oxalate through a complex reaction . For 1,2-DAP with relatively short carbon chains and more amino groups, it could have a stronger capacity to donate electrons, so that it coordinated with silver ions more quickly and stably …”
Section: Resultsmentioning
confidence: 99%