Thermoelectric physical quantities for bended ZZ-GNRs (solid line) with N_L,R = 7, W₁ = W₃ = 9, W₂ = 7, H₁ = H₂ = H₃ = 8, and the straight 7-ZGNR (dashed line): (a) phonon transmission functions, (b) thermal conductance κ_ph, (c) electron transmission functions T_e, (d) electrical conductance G_e, (e) Seebeck coefficient S, and (f) thermoelectric figure of merit ZT versus chemical potential μ at temperature T = 300 K.