Falco Aniello, Romero Francisco J, Loghin Florin C, Lyuleeva Alina, Becherer Markus, Lugli Paolo, Morales Diego P, Rodriguez Noel, Salmerón Jose F, Rivadeneyra Almudena
Faculty of Science and Technology, Free University of Bolzano, 39100 Bolzano-Bozen, Italy.
Department of Electronics and Computer Technology, University of Granada, 18071 Granada, Spain.
Nanomaterials (Basel). 2020 Sep 19;10(9):1879. doi: 10.3390/nano10091879.
This work demonstrates a cost-effective manufacturing method of flexible and fully printed microheaters, using carbon nanotubes (CNTs) as the heating element. Two different structures with different number of CNT layers have been characterized in detail. The benchmarking has been carried out in terms of maximum operating temperature, as well as nominal resistance and input power for different applied voltages. Their performances have been compared with previous reports for similar devices, fabricated with other technologies. The results have shown that the heaters presented can achieve high temperatures in a small area at lower voltages and lower input power. In particular, the fully printed heaters fabricated on a flexible substrate covering an area of 3.2 mm and operating at 9.5 V exhibit a maximum temperature point above 70 °C with a power consumption below 200 mW. Therefore, we have demonstrated that this technology paves the way for a cost-effective large-scale fabrication of flexible microheaters aimed to be integrated in flexible sensors.
这项工作展示了一种经济高效的柔性全印刷微加热器制造方法，该方法使用碳纳米管（CNT）作为加热元件。详细表征了具有不同CNT层数的两种不同结构。已根据最高工作温度以及不同施加电压下的标称电阻和输入功率进行了基准测试。已将它们的性能与先前使用其他技术制造的类似器件的报告进行了比较。结果表明，所展示的加热器能够在较低电压和较低输入功率下在小面积内实现高温。特别是，在面积为3.2平方毫米的柔性基板上制造并在9.5伏电压下运行的全印刷加热器，其最高温度点高于70°C，功耗低于200毫瓦。因此，我们已经证明，这项技术为旨在集成到柔性传感器中的柔性微加热器的经济高效大规模制造铺平了道路。
