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Yang H, Edberg J, Say MG, Erlandsson J, Gueskine V, Wågberg L, Berggren M, Engquist I. Study on the Rectification of Ionic Diode Based on Cross-Linked Nanocellulose Bipolar Membranes. Biomacromolecules 2024; 25:1933-1941. [PMID: 38324476 DOI: 10.1021/acs.biomac.3c01353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Nanocellulose-based membranes have attracted intense attention in bioelectronic devices due to their low cost, flexibility, biocompatibility, degradability, and sustainability. Herein, we demonstrate a flexible ionic diode using a cross-linked bipolar membrane fabricated from positively and negatively charged cellulose nanofibrils (CNFs). The rectified current originates from the asymmetric charge distribution, which can selectively determine the direction of ion transport inside the bipolar membrane. The mechanism of rectification was demonstrated by electrochemical impedance spectroscopy with voltage biases. The rectifying behavior of this kind of ionic diode was studied by using linear sweep voltammetry to obtain current-voltage characteristics and the time dependence of the current. In addition, the performance of cross-linked CNF diodes was investigated while changing parameters such as the thickness of the bipolar membranes, the scanning voltage range, and the scanning rate. A good long-term stability due to the high density cross-linking of the diode was shown in both current-voltage characteristics and the time dependence of current.
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Affiliation(s)
- Hongli Yang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden
| | - Jesper Edberg
- RISE Research Institutes of Sweden, Digital Systems, Smart Hardware, Bio-, Organic and Printed Electronics, Norrköping 60233, Sweden
| | - Mehmet Girayhan Say
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden
| | - Johan Erlandsson
- Division of Fibre Technology, Department of Fibre and Polymer Technology, School of Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | - Viktor Gueskine
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden
- Wallenberg Wood Science Centre, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden
| | - Lars Wågberg
- Division of Fibre Technology, Department of Fibre and Polymer Technology, School of Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
- Wallenberg Wood Science Centre, Department of Fibre and Polymer Technology, School of Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | - Magnus Berggren
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden
- Wallenberg Wood Science Centre, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden
| | - Isak Engquist
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden
- Wallenberg Wood Science Centre, Department of Science and Technology, Linköping University, Norrköping SE-601 74, Sweden
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