(color online) (a), (b) The ZT value and power factor of perfect and defect β-graphyne; (c) phonon thermal conductivity with defect and without defect; (d) phonon transmission coefficient with defect and without defect; (e) localized phonon density of state for pristine and defective β-graphyne at the different typical frequencies. Reprinted with the permission from Ref. [145]. Copyright (2017) by Elsevier.