Bipolar Thermoelectric Effect in a Serially Coupled Quantum Dot System

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题名:	Bipolar Thermoelectric Effect in a Serially Coupled Quantum Dot System
作者:	Kuo,DMT;Chang,YC
贡献者:	電機工程學系
关键词:	DEVICES;MERIT
日期:	2011
上传时间:	2012-03-28 10:13:54 (UTC+8)
出版者:	國立中央大學
摘要:	The Seebeck coefficient (S) of a serially coupled quantum dot (SCQD) junction system is theoretically studied via a two-level Anderson model. A change of sign in S with respect to temperature is found, which arises from the competition between tunneling currents due to electrons and holes (i.e., bipolar tunneling effect). The change of sign in S implies that one can vary the equilibrium temperature to produce thermoelectric current in either the forward or reverse direction, leading to a bipolar thermoelectric effect. For the case of two parallel SCQDs, we also observe the oscillatory behavior of S with respect to temperature. (C) 2011 The Japan Society of Applied Physics
關聯:	JAPANESE JOURNAL OF APPLIED PHYSICS
显示于类别:	[電機工程學系] 期刊論文

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