Strain effects on the quantum capacitance of graphene nanoribbon devices

Electronic properties, quantum capacitance and photocatalyst for water splitting of Sc2CO2 MXene under uniaxial strain

“…Figure 1 presents the stable structure of Sc 2 CO 2 monolayer from top and side view. The lattice parameter of 3.424 Å is close to previous work (3.44 Å) [48].…”

“…Figure 4 shows the band gap of Sc 2 CO 2 monolayer under strain. Sc 2 CO 2 without strain has the band gap of 1.85 eV, close to the previous research (1.82 eV) [48]. As the compressive and tensile strains increase, the band gap reduces and tends to zero at À16% strain, which indicates that the material undergoes the semiconductor-mental transition.…”

“…Pereira et al [47] explored the electronic properties of graphene by applying uniaxial strain experimentally. Kliros [48] found that the introduction of strain for a specific family of armchair graphene nanoribbon channel can reduce or enhance the QC.…”

Inducing a topological transition in graphene nanoribbon superlattices by external strain

“…Regarding the band gap under uniaxial strain, it increases for N = 3p + 2 and N = 3p AGNRs, while it decreases for N = 3p + 1 AGNRs. 43,53 For instance, without any strain the band gaps of 7-and 9-AGNR are DE 7 E 1.38 eV and DE 9 E 0.92 eV, respectively. As the 7-and 9-AGNR belong to different families (3p + 1 and 3p), it is expected that an axial strain will decrease DE 7 but increase DE 9 .…”