Sustainable wood electronics by iron-catalyzed laser-induced graphitization for large-scale applications.
Sustainable wood electronics by iron-catalyzed laser-induced graphitization for large-scale applications.
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DOI：
10.1038/s41467-022-31283-7
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发表时间：
2022-06-27
影响因子：
16.6
通讯作者：
中科院分区：
文献类型：
--
作者：
对木材无害的电子产品将有助于减轻最先进的基于纤维素的“绿色电子产品”的缺点。在这里，我们介绍了铁催化激光诱导石墨化（IC-LIG）作为一种创新的方法，用于以非常高的质量和效率在木材上雕刻大型导电结构，克服了传统LIG的局限性，包括高烧蚀，热损伤，需要多个激光步骤，使用阻燃剂和惰性气氛。一种受历史上的铁胆油墨启发的水性生物基涂料，可保护木材免受激光烧蚀和热损伤，同时促进有效的石墨化和平滑基材的不规则性。大尺寸（100 cm 2）、高导电性（≥2500 S m−1）和均匀的表面积可在环境气氛中使用传统CO2激光器一步雕刻，即使是在非常薄（≤ 450 µm）的木材单板上也是如此。我们证明了我们的方法的有效性，通过把木材变成高度耐用的应变传感器，柔性电极，电容式触摸面板和电致发光的LIG-based设备。对木材无害的电子产品将有助于减轻最先进的基于纤维素的绿色电子产品的缺点。在这里，作者介绍了铁催化激光诱导石墨化（IC-LIG）作为一种创新的方法，以高质量和高效率在木材上雕刻大型导电结构。
Ecologically friendly wood electronics will help alleviating the shortcomings of state-of-art cellulose-based “green electronics”. Here we introduce iron-catalyzed laser-induced graphitization (IC-LIG) as an innovative approach for engraving large-scale electrically conductive structures on wood with very high quality and efficiency, overcoming the limitations of conventional LIG including high ablation, thermal damages, need for multiple lasing steps, use of fire retardants and inert atmospheres. An aqueous bio-based coating, inspired by historical iron-gall ink, protects wood from laser ablation and thermal damage while promoting efficient graphitization and smoothening substrate irregularities. Large-scale (100 cm2), highly conductive (≥2500 S m−1) and homogeneous surface areas are engraved single-step in ambient atmosphere with a conventional CO2 laser, even on very thin (∼450 µm) wood veneers. We demonstrate the validity of our approach by turning wood into highly durable strain sensors, flexible electrodes, capacitive touch panels and an electroluminescent LIG-based device. Ecologically friendly wood electronics will help alleviating the shortcomings of state-of-art cellulose-based green electronics. Here, the authors introduce iron-catalyzed laser-induced graphitization (IC-LIG) as an innovative approach for engraving large-scale electrically conductive structures on wood with high quality and efficiency.
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影响因子：
4.5
作者：
Blume, Raoul;Rosenthal, Dirk;Schloegl, Robert
通讯作者：
Schloegl, Robert
影响因子：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
Dresselhaus, MS