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Ultra-long silver nanowires prepared via hydrothermal synthesis enable efficient transparent heaters
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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Nanoscale Advances, Volume 4, issue 20, pp. 4410-4417
Abstract
Ultra-long silver nanowires (AgNWs) with an aspect ratio of >2000 were prepared by the hydrothermal synthesis method. The influence of reaction time (4-32 h), reaction temperature (150-180 °C), polyvinylpyrrolidone (PVP) molecular weight (10 000-1 300 000 g mol−1), PVP concentration (50-125 mM), glucose concentration (5.6-22.4 mM) and CuCl2 concentration (2-20 μM) on the AgNW length was investigated systematically. The optimum conditions provided nanowires with an average diameter of 207 nm, an average length of 234 μm and a maximum length of 397 μm. Finally, a AgNW electrode was prepared on a glass substrate and used in transparent heater application. The transparent heater enabled outstanding heat-generating properties, reaching >200 °C within 70 s with an applied voltage of 5 V. Our results demonstrate how increasing the aspect ratio of ultra-long AgNWs is beneficial for both optical and electronic applications in terms of increased transmission and a more efficient Joule effect in the heater application. In addition, our results show that AgNWs with different lengths can be simply obtained by tuning synthesis parameters.
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| openaire: EC/H2020/949648/EU//ModelCom | openaire: EC/H2020/101031327/EU//WEARSENSNANO
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Basarir, F, De, S, Daghigh Shirazi, H & Vapaavuori, J 2022, 'Ultra-long silver nanowires prepared via hydrothermal synthesis enable efficient transparent heaters', Nanoscale Advances, vol. 4, no. 20, pp. 4410-4417. https://doi.org/10.1039/d2na00560c