Programmable and flexible wood-based origami electronics

Huashuo Ma, Chaozheng Liu, Zhi Yang, Shuai Wu, Yue Jiao, Xinhao Feng, Bo Xu, Rongxian Ou, Changtong Mei, Zhaoyang Xu, Jianxiong Lyu, Yanjun Xie () and Qiliang Fu ()
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Huashuo Ma: Nanjing Forestry University
Chaozheng Liu: Nanjing Forestry University
Zhi Yang: Nanjing Forestry University
Shuai Wu: Nanjing Forestry University
Yue Jiao: Nanjing Forestry University
Xinhao Feng: Nanjing Forestry University
Bo Xu: Nanjing University of Science and Technology
Rongxian Ou: South China Agricultural University
Changtong Mei: Nanjing Forestry University
Zhaoyang Xu: Nanjing Forestry University
Jianxiong Lyu: Nanjing Forestry University
Yanjun Xie: Northeast Forestry University
Qiliang Fu: Nanjing Forestry University

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Natural polymer substrates are gaining attention as substitutes for plastic substrates in electronics, aiming to combine high performance, intricate shape deformation, and environmental sustainability. Herein, natural wood veneer is converted into a transparent wood film (TWF) substrate. The combination of 3D printing and origami technique is established to create programmable wood-based origami electronics, which exhibit superior flexibility with high tensile strength (393 MPa) due to the highly aligned cellulose fibers and the formation of numerous intermolecular hydrogen bonds between them. Moreover, the flexible TWF electronics exhibit editable multiplexed configurations and maintain stable conductivity. This is attributed to the strong adhesion between the cellulose-based ink and TWF substrate by non-covalent bonds. Benefiting from its anisotropic structure, the programmability of TWF electronics is achieved through sequentially folding into predesigned shapes. This design not only promotes environmental sustainability but also introduces its customizable shapes with potential applications in sensors, microfluidics, and wearable electronics.

Date: 2024
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DOI: 10.1038/s41467-024-53708-1

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