Oxygen Impurity in Germanium Single Crystals Determination by Infrared Spectrometry

Abstract:

Oxygen impurity in Germanium single crystals has been characterized using Fourier transformed infrared spectrometry. The crystals were grown by Czochralski method in an argon atmosphere. The oxygen concentration in crystals was determined on optical density from the absorption band at 843 cm⁻¹. It was established that oxygen dissolved concentration in Germanium is variable from 0,2·10¹⁶ to 1,3·10¹⁶ сm⁻³. The oxygen band maximum shifts toward 856 cm⁻¹ when its concentration increases under the influence of annealing in the oxygen containing atmosphere with ≤ 10⁻³ Па.

• Periodical: Advanced Materials Research (Volume 1101)
• Pages: 115-119
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1101.115
• Online since: April 2015
• Authors: A.F. Shimanskii, O.I. Podkopaev, Vladimir N. Baranov
• Keywords: Germanium Single Crystal, Infrared Spectrometry, Optical Density, Oxygen Concentration, Transmission

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