Le, Truong-Son Dinh Park, Sangbaek An, Jianing Lee, Pooi See Kim, Young-Jin 2024-01-19T19:32:43Z 2024-01-19T19:32:43Z 2021-09-02 2019-08 1616-301X https://pubs.kist.re.kr/handle/201004/119744 Fast, simple, cost-efficient, eco-friendly, and design-flexible patterning of high-quality graphene from abundant natural resources is of immense interest for the mass production of next-generation graphene-based green electronics. Most electronic components have been manufactured by repetitive photolithography processes involving a large number of masks, photoresists, and toxic etchants; resulting in slow, complex, expensive, less-flexible, and often corrosive electronics manufacturing processes to date. Here, a one-step formation and patterning of highly conductive graphene on natural woods and leaves by programmable irradiation of ultrafast high-photon-energy laser pulses in ambient air is presented. Direct photoconversion of woods and leaves into graphene is realized at a low temperature by intense ultrafast light pulses with controlled fluences. Green graphene electronic components of electrical interconnects, flexible temperature sensors, and energy-storing pseudocapacitors are fabricated from woods and leaves. This direct graphene synthesis is a breakthrough toward biocompatible, biodegradable, and eco-friendlily manufactured green electronics for the sustainable earth. English WILEY-V C H VERLAG GMBH AMORPHOUS-CARBON FEMTOSECOND DIAMOND GRAPHITIZATION POLYIMIDE SUPERCAPACITORS TRANSFORMATION PYROLYSIS PRESSURE ABLATION Ultrafast Laser Pulses Enable One-Step Graphene Patterning on Woods and Leaves for Green Electronics Article 10.1002/adfm.201902771 1 ADVANCED FUNCTIONAL MATERIALS, v.29, no.33 ADVANCED FUNCTIONAL MATERIALS 29 33 scie scopus 000482137900029 2-s2.0-85067417701 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article AMORPHOUS-CARBON FEMTOSECOND DIAMOND GRAPHITIZATION POLYIMIDE SUPERCAPACITORS TRANSFORMATION PYROLYSIS PRESSURE ABLATION biocompatible and biodegradable devices flexible green electronics laser-induced graphene single-step fabrication