Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 2949-2955 |
| Number of pages | 7 |
| Journal | Thin Solid Films |
| Volume | 520 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2012 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- printed electronics
- nanoparticle sintering
- photothermal sintering
- paper substrate
- ink-jet printing
- resistivity
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IR-sintering of ink-jet printed metal-nanoparticles on paper. / Tobjörk, D. (Corresponding Author); Aarnio, H.; Pulkkinen, P.; Bollström, R.; Määttänen, A.; Ihalainen, P.; Mäkelä, Tapio; Peltonen, J.; Toivakka, M.; Tenhu, H.
In: Thin Solid Films, Vol. 520, No. 7, 2012, p. 2949-2955.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - IR-sintering of ink-jet printed metal-nanoparticles on paper
AU - Tobjörk, D.
AU - Aarnio, H.
AU - Pulkkinen, P.
AU - Bollström, R.
AU - Määttänen, A.
AU - Ihalainen, P.
AU - Mäkelä, Tapio
AU - Peltonen, J.
AU - Toivakka, M.
AU - Tenhu, H.
PY - 2012
Y1 - 2012
N2 - Sintering of printed metal nanoparticles can be made not only by conventional heating, but also by, e.g., electrical, microwave, plasma, laser and flash lamp annealing. We demonstrate sintering by using low-cost incandescent lamps as an effective way of obtaining highly conductive contacts of two types of ink-jet printed metal-nanoparticle inks on paper; both alkanethiol protected gold nanoparticles and a commercially available silver nanoparticle ink. This low-cost roll-to-roll compatible sintering process is especially suitable on paper substrates because of the high diffuse reflectance, relatively high thermal stability and low thermal conductivity of paper. A volume resistivity of around 10 μΩ cm was achieved of the inkjetted silver nanoparticles within 15 s of exposure to an IR lamp, which corresponds to a conductivity of 10–20% of that of bulk silver. Too long exposure time and too high intensity, however, lead to darkening of the paper fibers. Both the crack formation and the coffee ring effect of the inkjet printed gold nanoparticles were, furthermore, found to be reduced on paper as compared to glass or plastic substrates.
AB - Sintering of printed metal nanoparticles can be made not only by conventional heating, but also by, e.g., electrical, microwave, plasma, laser and flash lamp annealing. We demonstrate sintering by using low-cost incandescent lamps as an effective way of obtaining highly conductive contacts of two types of ink-jet printed metal-nanoparticle inks on paper; both alkanethiol protected gold nanoparticles and a commercially available silver nanoparticle ink. This low-cost roll-to-roll compatible sintering process is especially suitable on paper substrates because of the high diffuse reflectance, relatively high thermal stability and low thermal conductivity of paper. A volume resistivity of around 10 μΩ cm was achieved of the inkjetted silver nanoparticles within 15 s of exposure to an IR lamp, which corresponds to a conductivity of 10–20% of that of bulk silver. Too long exposure time and too high intensity, however, lead to darkening of the paper fibers. Both the crack formation and the coffee ring effect of the inkjet printed gold nanoparticles were, furthermore, found to be reduced on paper as compared to glass or plastic substrates.
KW - printed electronics
KW - nanoparticle sintering
KW - photothermal sintering
KW - paper substrate
KW - ink-jet printing
KW - resistivity
U2 - 10.1016/j.tsf.2011.10.017
DO - 10.1016/j.tsf.2011.10.017
M3 - Article
VL - 520
SP - 2949
EP - 2955
JO - Thin Solid Films
JF - Thin Solid Films
SN - 0040-6090
IS - 7
ER -