Laser-induced graphene (LIG) has been utilized as a nonmetallic conductor for the development of various electronics due to its facile, direct, and scalable synthesis process. Here, the graphitization degree of LIG is simply controlled by adjusting the lasing conditions to encode different electronic functionalities such as resistance and capacitance on commercially available papers. The effect of lasing conditions including the number of lasing scans and the lasing power on the graphitization degree of paper-derived LIG is systematically investigated by evaluating the optical, chemical, and electrical properties. The paper-derived LIG with various lasing conditions exhibits a relatively wide sheet resistance range of 61.5 to 9140 Ω sq^–1. The corresponding LIG is used to fabricate resistors and capacitors, and the different electronic functionality encoding is successfully demonstrated by monolithically fabricating nonvolatile read-only memory and resistor-capacitor circuits and verifying the electrical performance of the fabricated devices. This work presents a practical approach to develop paper electronics for cost-effective and environmentally friendly manufacturing.

中文翻译：

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用于电子纸的电子功能编码激光诱导石墨烯

激光诱导的石墨烯（LIG）由于其简便，直接和可扩展的合成工艺，已被用作开发各种电子设备的非金属导体。在此，可以通过调节激光条件来简单地控制LIG的石墨化程度，以在市售纸张上编码不同的电子功能，例如电阻和电容。通过评估光学，化学和电学性质，系统地研究了激光条件（包括激光扫描次数和激光功率）对纸制LIG石墨化程度的影响。具有各种激光条件的纸质LIG的相对薄层电阻范围为61.5至9140Ωsq ^–1。相应的LIG用于制造电阻器和电容器，通过单片制造非易失性只读存储器和电阻器-电容器电路并验证所制造设备的电性能，成功地展示了不同的电子功能编码。这项工作提出了一种实用的方法来开发纸质电子产品，以实现具有成本效益和环保的制造。