Metallic layered germanium phosphide GeP5 for high rate flexible all-solid-state supercapacitors

In this study, high quality GeP₅ crystals with two-dimensional (2D) layered structures and novel electrical conductivity of 2.4 × 10⁶ S m⁻¹ have been prepared under high-temperature high-pressure oriented growth technique (HTHP-OGT).