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Urbach tail studies by luminescence filtering in moderately doped bulk InP

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arxiv 1009.0191 v1 pith:SXTGHTIP submitted 2010-09-01 cond-mat.mtrl-sci

Arsen V. Subashiev , Oleg Semyonov , Zhinchao Chen , Serge Luryi This is my paper · ORCID
classification cond-mat.mtrl-sci
keywords dopedfilteringluminescencemoderatelyurbachabsorptionaccuratebulk
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The shape of the photoluminescence line registered from a side edge of InP wafer is studied as function of the distance from the excitation spot. The observed red shift 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.

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