Fig. 2
From: Infinitesimal sulfur fusion yields quasi-metallic bulk silicon for stable and fast energy storage
Metallicity of quasi-metallic silicon. a, b Single-particle I–V plots (a) and bulk (pellet) conductivity results (b) of bare Si, carbon-coated Si(Si@C), QMS(0.1), QMS(0.3), and QMS(0.7) samples. c, e Calculated band structure of QMS samples with different substitution doping concentrations of (c) 0.39%, S1Si255, and (e) 1.59%, S1Si63. The charge density distribution at these impurity levels (in the insets) is shown in red and blue lines to intuitively illustrate the contribution of Si to the metallic properties. The isosurface of the density is 0.0005 e/Å3. d Hall effect measurement results of QMS(0.7)
