Fig. 1From: Monolayer Phosphorene–Carbon Nanotube Heterostructures for Photocatalysis: Analysis by Density Functional TheoryThe optimized geometry for different CNTs on monolayer BP: a1–d1 and a2–d2 are side and top view for (5, 0), (6, 0), (9, 0), and (10, 0) CNTs, respectively. The equilibrium spacing between the nanotube wall and the top P atom layer is denoted by d. Gray and pink spheres represent C and P atoms, respectivelyBack to article page