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arXiv 1104.4975cond-mat.mes-hall
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硅纳米结构的偏振电致发光

Polarized electroluminescence from silicon nanostructures

Nikolay Bagraev, Eduard Danilovsky, Dmitrii Gets, Leonid Klyachkin, Andrey Kudryavtsev, Roman Kuzmin, Anna Malyarenko, Vladimir Mashkov

摘要:

首次报道了重掺杂硼的δ势垒限制的p型超窄硅量子阱(Si-QW)纳米结构的圆偏振电致发光(CPEL)。CPEL对正向电流和横向电场的依赖关系显示出圆偏振光发射,这似乎是由于在磷施主的帮助下,通过Si-QW- δ势垒界面处的负U偶极硼中心的激子复合引起的。

英文摘要:

We present the first findings of the circularly polarized electroluminescence (CPEL) from silicon nanostructures which are the p-type ultra-narrow silicon quantum well (Si-QW) confined by δ-barriers heavily doped with boron. The CPEL dependences on the forward current and lateral electric field show the circularly polarized light emission which appears to be caused by the exciton recombination through the negative-U dipole boron centers at the Si-QW - δ-barriers interface with the assistance of phosphorus donors.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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