High temperature coefficient of resistance for a ferroelectric tunnel junction
High temperature coefficient of resistance for a ferroelectric tunnel junction
复制标题
铁电隧道结的高电阻温度系数
DOI:
10.1063/1.4928540
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发表时间:
2015-08
期刊:
影响因子:
--
通讯作者:
Xiangjian Meng
中科院分区:
文献类型:
--
作者:
Xiaolin Zhao;Jianlu Wang;Xiangjian Meng
An infrared detector is proposed that is based on a ferroelectric tunnel junction (FTJ) working under bolometer-like principles. Electron tunneling, either direct or indirect, through the ferroelectric barrier depends on the temperature of the devices. During tunneling, infrared radiation alters the polarization of the ferroelectric film via pyroelectricity, resulting in a change in the barrier height of the tunnel junction. A high temperature coefficient of resistance of up to −3.86% was observed at room temperature. These results show that the FTJ structure has potential to be adapted for use in uncooled infrared detectors.
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