2:30 PM - 2:45 PM
▲ [17p-Z18-7] Local Fabrication of Nanowires with High Aspect-Ratios using a Diffusion Mixing Reaction System for Temperature Sensing
Keywords:Nanowire, Temperature sensing, Microfludics
Nanofabrication has greatly promoted the miniaturization and integration of devices, and has led to extensive research in this area. Benefiting from the large surface-to-volume ratio of nanostructures, nanostructured sensors have been utilized for the highly sensitive and specific detection.
We developed a novel approach for selective fabrication of conductive nano-wires on a solid surface via diffusion mixing reaction system formed by a chemical pen.1,2 The nanoscale-mixing region was achieved by appropriately adjusting the viscosity of the solution and other parameters with the aid of dyes functioned as a flow boundary indicator. Under the optimal parameters, high aspect ratio silver nanowires (aspect ratio≈1800) were obtained.
The theoretical value of the temperature coefficient of resistance (TCR) for silver was 0.0038 Ω/℃. A single silver wire temperature sensor with 7-fold increase in temperature coefficient resistance (0.0261 Ω/℃) was fabricated to show the advantages of the chemical pen in the fabrication of nanowire sensors.3
References
[1] Mao, S.; Zhang, Y.; Zhang, W.; Zeng, H.; Nakajima, H.; Lin, J.-M.*; Uchiyama, K*. Chemphyschem 2017, 18, 2357-2363.
[2] Zhang, Y.; Mao, S.*; Suzuki, Y.; Tanaka, Y.; Kawaguchi, M.; Zhang, W.; Zeng, H.; Nakajima, H.; Yang, M.; Uchiyama, K*. Chem. Commun. 2018, 54, 719-722.
[3] Lin, H.; Mao, S.; Zeng, H.; Zhang, Y.; Kawaguchi, M.; Tanaka, Y.; Lin, J.-M.*; Uchiyama, K.*. Anal. Chem. 2019, 91, 7346-7352.
We developed a novel approach for selective fabrication of conductive nano-wires on a solid surface via diffusion mixing reaction system formed by a chemical pen.1,2 The nanoscale-mixing region was achieved by appropriately adjusting the viscosity of the solution and other parameters with the aid of dyes functioned as a flow boundary indicator. Under the optimal parameters, high aspect ratio silver nanowires (aspect ratio≈1800) were obtained.
The theoretical value of the temperature coefficient of resistance (TCR) for silver was 0.0038 Ω/℃. A single silver wire temperature sensor with 7-fold increase in temperature coefficient resistance (0.0261 Ω/℃) was fabricated to show the advantages of the chemical pen in the fabrication of nanowire sensors.3
References
[1] Mao, S.; Zhang, Y.; Zhang, W.; Zeng, H.; Nakajima, H.; Lin, J.-M.*; Uchiyama, K*. Chemphyschem 2017, 18, 2357-2363.
[2] Zhang, Y.; Mao, S.*; Suzuki, Y.; Tanaka, Y.; Kawaguchi, M.; Zhang, W.; Zeng, H.; Nakajima, H.; Yang, M.; Uchiyama, K*. Chem. Commun. 2018, 54, 719-722.
[3] Lin, H.; Mao, S.; Zeng, H.; Zhang, Y.; Kawaguchi, M.; Tanaka, Y.; Lin, J.-M.*; Uchiyama, K.*. Anal. Chem. 2019, 91, 7346-7352.