Figure 1

Stability of BN-60 cages.
(a) Relaxed structure of BN-60 cages with different B:N ratio and homonuclear bonds. (b) Formation enthalpy per atom of various BN-60 cages. Blue and pink sphere denoted the N and B atoms.

Stability of BN-60 cages.
(a) Relaxed structure of BN-60 cages with different B:N ratio and homonuclear bonds. (b) Formation enthalpy per atom of various BN-60 cages. Blue and pink sphere denoted the N and B atoms.