Flexible fiber-shaped CuInSe2 solar cells with single-wire-structure: Design, construction and performance

► We construct fiber-shaped solar cells with Mo/CuInSe2/CdS/ZnO/ITO single-wire-structure. ► This fiber-shaped solar cell has a photoelectric conversion efficiency of 2.31%. ► Its conversion efficiency remains stable during rotation, bending and long-time aging processes. ► This approach opens a reliable path for weaving the stereoscopic cell textiles.