Abstract
Graphene nanowiggles (GNWs) are one-dimensional wiggle edged graphene nanoribbons (GNRs) that have been synthesized using an atomically precise bottom-up approach. They are known to possess superior thermoelectric properties compared to straight GNRs. Here, first-principles density functional theory calculations establish that these properties can be further enhanced when they undergo a structural dislocation. While such plastic deformation raises the figure of merit ZT above 1 at room temperature, an elastic deformation under uniaxial tension does not increase ZT. The calculations also show that the GNWs possess a Youngs modulus (0.82 TPa) smaller than that of their straight GNR counterparts (1.08 TPa).
Original language | English |
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Article number | 143101 |
Journal | Applied Physics Letters |
Volume | 102 |
Issue number | 14 |
DOIs | |
State | Published - Apr 8 2013 |
Externally published | Yes |