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Interstitial Carbon in p-Type Copper-Doped Silicon

机译:p型掺杂铜的硅中的间隙碳

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The spectrum of defects produced by 5 MeV electron irradiation at room temperature in the oxygen-lean p-type silicon strongly contaminated with interstitial copper (Cu_i) is studied using the deep-level transient spectroscopy. It is observed that the interstitial carbon defects (C_i), which are abundant in irradiated copper-free samples, are not detected directly after irradiation. The phenomenon is attributed to the formation of a {Cu_i, C_i} complexes which exhibit no deep levels in the lower half of the band gap. The complexes are shown to dissociate under anneals at 300-340 K resulting in the appearance of the C_i species.
机译:使用深层瞬态光谱研究了室温下5 MeV电子辐照在被间隙铜(Cu_i)严重污染​​的贫氧p型硅中产生的缺陷的光谱。观察到,在辐照后的无铜样品中大量存在的间隙碳缺陷(C_i)并未在辐照后立即检测到。该现象归因于{Cu_i,C_i}复合物的形成,该复合物在带隙的下半部不显示深能级。所述复合物显示在300-340K下的退火下解离,导致出现C_1物种。

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