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Thermoelectric properties of one-dimensional graphene antidot arrays |
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| Authors: | Yonghong Yan Qi-Feng Liang Hui Zhao Chang-Qin Wu Baowen Li |
| Institution: | 1. Department of Physics, Shaoxing University, Shaoxing 312000, China;2. Department of Physics, Tongji University, Shanghai 200092, China;3. Department of Physics, Fudan University, Shanghai 200433, China;4. NUS-Tongji Center for Phononics and Thermal Energy Science and Department of Physics, Tongji University, Shanghai 200092, China;5. Graphene Research Centre, Centre for Computational Science and Engineering, Department of Physics, and NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117456, Singapore |
| Abstract: | We investigate the thermoelectric properties of one-dimensional (1D) graphene antidot arrays by nonequilibrium Green?s function method. We show that by introducing antidots to the pristine graphene nanoribbon the thermal conductance can be reduced greatly while keeping the power factor still high, thus leading to an enhanced thermoelectric figure of merit (ZT). Our numerical results indicate that ZT values of 1D antidot graphene arrays can be up to unity, which means the 1D graphene antidot arrays may be promising for thermoelectric applications. |
| Keywords: | Thermoelectric property Graphene antidot lattice ZT |
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