Integrating High-Sensitivity Photodetector and High-Energy Aqueous Battery in All-in-One Triple-Twisted Fiber

Zecheng Lu; Long Chen; Jianxian Zhou; Bing He; Ruijian Liu; Chengjun Zhu; Pan Xue; Yan Sun; Chunsheng Li; Lei Wei; Qingwen Li; Qichong Zhang

doi:10.1021/acsnano.3c05710

Integrating High-Sensitivity Photodetector and High-Energy Aqueous Battery in All-in-One Triple-Twisted Fiber

ACS Nano. 2023 Oct 24;17(20):20087-20097. doi: 10.1021/acsnano.3c05710. Epub 2023 Oct 3.

Authors

Zecheng Lu^{1

2}, Long Chen², Jianxian Zhou², Bing He³, Ruijian Liu¹, Chengjun Zhu¹, Pan Xue⁴, Yan Sun^{5

6}, Chunsheng Li^{5

6}, Lei Wei³, Qingwen Li², Qichong Zhang²

Affiliations

¹ Key Laboratory of Semiconductor Photovoltaic Technology of Inner Mongolia Autonomous Region, School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China.
² Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
³ School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore.
⁴ School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
⁵ School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou 215009, China.
⁶ Key Laboratory of Advanced Electrode Materials for Novel Solar Cells for Petroleum and Chemical Industry of China, Suzhou University of Science and Technology, Suzhou 215009, China.

PMID: 37787647
DOI: 10.1021/acsnano.3c05710

Abstract

Fiber-shaped photodetectors (FPDs) have attracted special attention to wearable health monitoring due to their 3D absorption capabilities. However, the practical application of traditional FPDs is severely limited by the irreversible degradation of performance caused by vulnerable interface compatibility on complex deformation and a single function. Here, an integrated photoelectrochemical FPD/battery device (FPDB) is designed, consisting of a common electrode, photoanode, anode, and sol-gel electrolyte as an isolation layer, which not only effectively avoids the short circuit problem of FPD but also endows high-efficiency energy storage capacity. As expected, the resulting all-in-one triple-twisted fiber-shaped FPDB simultaneously achieves high responsiveness of 151.45 mA W^-1 and excellent volume capacity of 18.75 mAh cm^-3. Such a stable architectural design and multifunctional integration of functional fibers accelerate the development of next-generation wearable fabrics.

Keywords: aqueous battery; common electrode; fiber; multifunctional integrated device; photoelectrochemical photodetector.