Printed electronics is an expanding research field that can reach the goal of reducing the environmental impact on electronics exploiting renewable and biodegradable materials, like paper. In our work, we designed and tested a new method for fabricating hybrid smart devices on cellulose substrates by aerosol jet printing (AJP) and photonic curing, also known as flash lamp annealing (FLA), capable to cure low temperature materials without any damage. Three different cellulose-based materials (chromatographic paper, photopaper, cardboard) were tested. Multilayer capability and SMDs (surface mount devices) interconnections are possible permitting high flexibility in the fabrication process. Electrical and geometrical tests were performed to analyze the behavior of printed samples. Resulted resistivities are 26.3 × 10-8 m on chromatographic paper, 22.3 × 10-8 m on photopaper and 13.1 × 10-8 m on cardboard. Profilometer and optical microscope evaluations were performed to state deposition quality and penetration of the ink in cellulose materials (thicknesses equal to 24.9, 28.5, and 51 μm respectively for chromatographic paper, photopaper, and cardboard). Furthermore, bending (only chromatographic paper did not reach the break-up) and damp environment tests (no significant variations in resistance) where performed. A final prototype of a complete functioning multilayer smart devices on cellulose 3D-substrate is shown, characterized by multilayers, capacitive sensors, SMDs interconnections.

中文翻译：

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通过气溶胶喷射印刷和光子固化在纤维素基材料上印刷智能设备。

印刷电子学是一个正在扩展的研究领域，可以达到减少利用可再生和可生物降解材料（如纸）对电子学的环境影响的目标。在我们的工作中，我们设计并测试了一种通过气溶胶喷射印刷（AJP）和光子固化（也称为闪光灯退火（FLA））在纤维素基材上制造混合智能设备的新方法，该方法能够固化低温材料而不会造成任何损坏。测试了三种不同的纤维素基材料（色谱纸，相纸，硬纸板）。多层功能和SMD（表面安装设备）互连是可能的，从而在制造过程中具有很高的灵活性。进行了电气和几何测试以分析打印样品的行为。色谱纸22上的电阻率为26.3×10-8 m。相纸上3×10-8 m，纸板上13.1×10-8 m。进行轮廓仪和光学显微镜评估，以说明沉积质量和墨水在纤维素材料中的渗透（色谱纸，相纸和纸板的厚度分别等于24.9、28.5和51μm）。此外，还要进行弯曲（仅色谱纸未破裂）和潮湿环境测试（电阻无明显变化）。显示了纤维素3D基板上功能完备的多层智能设备的最终原型，其特征是多层，电容式传感器，SMD互连。进行轮廓仪和光学显微镜评估，以说明沉积质量和墨水在纤维素材料中的渗透（色谱纸，相纸和纸板的厚度分别等于24.9、28.5和51μm）。此外，还要进行弯曲（仅色谱纸未破裂）和潮湿环境测试（电阻无明显变化）。显示了纤维素3D基板上功能完备的多层智能设备的最终原型，其特征是多层，电容式传感器，SMD互连。进行轮廓仪和光学显微镜评估，以说明沉积质量和墨水在纤维素材料中的渗透（色谱纸，相纸和纸板的厚度分别等于24.9、28.5和51μm）。此外，还要进行弯曲（仅色谱纸未破裂）和潮湿环境测试（电阻无明显变化）。显示了纤维素3D基板上功能完备的多层智能设备的最终原型，其特征是多层，电容式传感器，SMD互连。