Resonant enhancement in nanostructured thermoelectric performance via electronic thermal conductivity engineering

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• 作者：Urvesh Patil ; Bhaskaran Muralidharan ; ^{bm@ee.iitb.ac.in}
• 刊名：Physica E: Low-dimensional Systems and Nanostructures
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：85
• 期：Complete
• 页码：27-33
• 全文大小：1773 K
• 卷排序：85

文摘

This work brings in a demonstration that an asymmetric broadening of the nanoscale transport distribution can theoretically result in an ultra-enhancement in the thermoelectric figure of merit zelTzelT. κelκel We then substantiate with realistic resonant structures designed using graphene nano-ribbons by employing a tight binding framework with edge correction. The calculated figure of merit exceeding 10 in such realistic structures further re-inforces the concept. This work sets a promising direction toward engineering the electronic thermal conductivity at the nanoscale.