Urbach tail studies by luminescence filtering in moderately doped bulk InP
Urbach tail studies by luminescence filtering in moderately doped bulk InP
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DOI：
10.1063/1.3510470
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发表时间：
2010-09
影响因子：
4
通讯作者：
A. Subashiev;O. Semyonov;Zhinchao Chen;S. Luryi
中科院分区：
文献类型：
--
作者：
A. Subashiev;O. Semyonov;Zhinchao Chen;S. Luryi
从InP晶片的侧边缘登记的光致发光线的形状作为从激发点的距离的函数进行了研究。观察到的最大发光红移很好地描述了辐射过滤和吸收光谱是一致的。我们的方法提供了一个独立的和准确的测定Urbach尾巴在中度掺杂半导体。
The shape of the photoluminescence line registered from a side edge of InP wafer is studied as a function of the distance from the excitation spot. The observed redshift in the luminescence maximum is well described by radiation filtering and is consistent with the absorption spectra. Our method provides an independent and accurate determination of the Urbach tails in moderately doped semiconductors.