Models for low-dimensional thermoelectricity |
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| Authors: | T Koga X Sun SB Cronin MS Dresselhaus KL Wang and G Chen |
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| Affiliation: | (1) Division of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, U.S.A;(2) Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139-4307, U.S.A;(3) Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139-4307, U.S.A;(4) School of Engineering, University of California, Los Angeles, CA, 90024, U.S.A |
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| Abstract: | Enhanced thermoelectric performance, expressed in terms of the thermoelectric figure of merit (ZT), has been predicted theoretically for low-dimensional electronic systems under appropriate experimental conditions. Enhanced ZT has been observed experimentally within 2D quantum wells of PbTe, and good agreement between theory and experiment has been obtained. The advantages of low-dimensional systems for thermoelectric applications are described, and prospects for further enhancement of ZT are discussed. |
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| Keywords: | Semiconductor Multiple quantum wells Superlattices Thermoelectricity Figure of merit ZT Bi2Te3 PbTe GaAs/AlAs |
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