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首页> 外文期刊>Physica, B. Condensed Matter >Effective Auger excitation of erbium luminescence by hot electrons in silicon
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Effective Auger excitation of erbium luminescence by hot electrons in silicon

机译:硅中热电子对Aug发光的有效俄歇激发

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摘要

In an electroluminescent structure based on erbium-doped crystalline silicon we have found and studied a new mechanism of excitation of erbium ions involving Auger recombination of electrons from the upper subband of the conduction band with holes from the valence band. The new excitation mechanism is weak at low temperatures, but it is resonantly enhanced at 160 K, when the energy distance of the edge of the upper subband of the conduction band from the valence band edge coincides with the energy of the second excited state of the erbium ion due to temperature shrinking of the silicon energy gap.
机译:在基于掺-晶体硅的电致发光结构中,我们发现并研究了一种激发excitation离子的新机制,该机制涉及导带上部子带中的电子与价带空穴进行俄歇复合。新的激发机制在低温下较弱,但当导带的上子带边缘的能量距离价带边缘的能量距离与电子的第二激发态的能量一致时,它在160 K时会共振增强。 ion离子由于硅能隙的温度收缩而减小。

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