Axial Channel for Gel Electrolyte to Produce Efficient Fiber Dye‐Sensitized Solar Cell

Abstract Fiber gel dye‐sensitized solar cells (FGDSCs) are emerging as promising wearable power sources due to their flexibility, light weight, and safety. However, it remains challenging to synthesize gel electrolytes for efficient FGDSCs. Here, an axial channel is designed for the effective infiltration of electrolyte components after in situ polymerization of the gel precursor on fiber electrodes. Due to the formation of intimate and stable gel electrolyte/electrode interfaces and high ion conductivity of the gel electrolyte, the resulting FGDSC shows high power conversion efficiency of 8.58% that are well maintained by over 90% under deformations. These FGDSCs could be integrated with the other functional components and further woven into smart electronic textiles, revealing an application prospect in wearable intelligent traffic indication.