Electrospinning technique synthesis and electrical performances of one dimensional Ca2Co2O5 with hierarchical structure

• D hierarchical Ca2Co2O5 assembled by nanoplates was prepared by electrospinning.
• The reaction process and morphology evolution were deduced and discussed.
• High Seebeck coefficient (maximum value of 191  μV K−1 at 963 K) was obtained.

One dimensional (1D) Ca2Co2O5 with hierarchical structure has been fabricated by electrospinning successfully for the first time. The formation process of hierarchical structure Ca2Co2O5 are investigated by powder X-ray diffraction and scanning electron microscopy. High Seebeck coefficient (maximum value of 191 μV K−1) and power factor (maximum value of 1.85×10−4 W m1 K−2 at 963 K) could be realized by fabricating 1D hierarchical structure assembled by nanoplates. This work provides a step forward in the design of other materials with similar layered building blocks in the crystal structure.