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首页> 外文期刊>Chinese physics >Nanoelectronic devices-resonant tunnelling diodes grown on InP substrates by molecular beam epitaxy with peak to valley current ratio of 17 at room temperature
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Nanoelectronic devices-resonant tunnelling diodes grown on InP substrates by molecular beam epitaxy with peak to valley current ratio of 17 at room temperature

机译:纳米电子器件-通过分子束外延在InP衬底上生长的共振隧穿二极管,室温下峰谷比为17

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摘要

This paper reports that lnAs/In0.53Ga0.47As/AlAs resonant tunnelling diodes have been grown on InP substrates by molecular beam epitaxy. Peak to valley current ratio of these devices is 17 at 300K. A peak current density of 3kA/cm(2) has been obtained for diodes with AlAs barriers of ten monolayers, and an In0.53Ga0.47As well of eight monolayers with four monolayers of InAs insert layer. The effects of growth interruption for smoothing potential barrier interfaces have been investigated by high resolution transmission electron microscope.
机译:本文报道了通过分子束外延在InP衬底上生长了InAs / In0.53Ga0.47As / AlAs共振隧穿二极管。这些器件的峰谷电流比在300K时为17。对于具有十个单层AlAs势垒的二极管和具有四个InAs插入层四个单层的八个单层的In0.53Ga0.47As阱,已经获得了3kA / cm(2)的峰值电流密度。高分辨率透射电子显微镜已研究了生长中断对势垒界面的平滑作用。

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