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采用第一性原理,对O与Er共掺杂硅纳米晶粒的电子结构及光学性质进行了计算.计算结果表明:O原子的掺杂没有影响Er掺硅纳米晶粒的禁带宽度;Er掺硅纳米晶粒结构在紫外区的吸收峰因O原子的掺入明显加强,红外区源于Er原子的吸收峰峰值减小.

参考文献

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