Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/182509
Title: | Biopolymeric ionotronics based on biodegradable wool keratin | Authors: | Zhu, Shuihong Chen, Shaohua Jiang, Feng Fu, Cong Fu, Tianqi Lin, Da Meng, Zhaohui Lin, Youhui Lee, Pooi See |
Keywords: | Engineering | Issue Date: | 2024 | Source: | Zhu, S., Chen, S., Jiang, F., Fu, C., Fu, T., Lin, D., Meng, Z., Lin, Y. & Lee, P. S. (2024). Biopolymeric ionotronics based on biodegradable wool keratin. Advanced Materials, e2414191-. https://dx.doi.org/10.1002/adma.202414191 | Project: | MOE-T2EP50122-0002 | Journal: | Advanced Materials | Abstract: | The advent of ionotronics has revealed significant potential in flexible transistors, energy harvesting, and unconventional circuits. However, most ionotronic devices, often centered around synthetic polymers, involve complex grafting or synthesis that raise legitimate concerns about their environmental sustainability. Herein, a simple yet versatile approach for developing single-composition ionotronic devices using wool keratin (WK), a biodegradable and pH-responsive natural polymer is presented. By employing facile pH regulation processes, WK molecules with opposing polarities are successfully modified, which are combined to form an ionic heterojunction through entropically driven depletion. This ionic heterojunction functions as an ionic diode, enabling efficient rectification of alternating current signals (with a rectification ratio of up to 199). Furthermore, the application of this biopolymeric ionotronic device is extended to mechanical energy harvesting, self-powered sensing, and ionic logic circuit. The biodegradability and renewability of WK offer a viable alternative to synthetic materials, highlighting its potential for sustainable applications. | URI: | https://hdl.handle.net/10356/182509 | ISSN: | 0935-9648 | DOI: | 10.1002/adma.202414191 | Schools: | School of Materials Science and Engineering | Rights: | © 2024 Wiley-VCH GmbH. All rights reserved. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | MSE Journal Articles |
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.