Optical properties and band structure of group IV-VI and group V materials

Manuel Cardona, D. L. Greenaway

Room-temperature reflectivity measurements over the energy range 0.5 to 25 eV have been made on the lead salts PbS, PbSe, PbTe, and on SnTe and GeTe; reflection curves have also been obtained for the structurally closely related Group V semimetals As, Sb, and Bi. In addition, the lead salts were measured at 77°K in the region below 6 eV. Measurements of transmission, also in the energy range below 6 eV, both at room temperature and at 77°K were made on epitaxially-deposited thin films of the lead salts and of SnTe. The observed structure on the reflectivity and absorption curves could be analyzed in general terms by comparison with the results obtained for diamond and zinc-blende materials and in particular by comparison with a recent augmented plane-wave band structure calculation of one of the lead salts (PbTe). An analysis of the reflectivity curves for some of the materials studied, using the Kramers-Kronig relation, enabled a detailed comparison to be made of the optical constants obtained from both reflection and transmission results. © 1964 The American Physical Society.

DOI badge Download BibTeX How to cite Download dataset

Materials
Curve 1
Temperature K: 297 Wavelength Range, μm: 0.0620-0.207 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Evaporated layer (polycrystal).
Curve 2
Temperature K: 297 Wavelength Range, μm: 0.207-1.38 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Single crystal; cleaved; data extracted from smooth curve.
Curve 1
Temperature K: 297 Wavelength Range, μm: 0.207-1.13 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Single crystal; cleaved; data extracted from smooth curve.
Curve 2
Temperature K: 297 Wavelength Range, μm: 0.0590-0.207 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Epitaxially-deposited layer; single crystal with (100) orientation on NaCl single-crystal substrate; data extracted from smooth curve.
Curve 1
Temperature K: 297 Wavelength Range, μm: 0.241-2.53 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: Epitaxially-deposited thin film (360 Å thick); single crystal with orientation (100); data extracted from smooth curve.
Curve 2
Temperature K: 77 Wavelength Range, μm: 0.220-0.849 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: Above specimen and conditions.
Curve 1
Temperature K: 297 Wavelength Range, μm: 0.207-1.24 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Single crystal; cleaved; data extracted from smooth curve.
Curve 2
Temperature K: 297 Wavelength Range, μm: 0.0590-0.207 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Epitaxially-deposited layer; single crystal with (100) orientation on KBr single crystal substrate; data extracted from smooth curve.
Curve 1
Temperature K: 297 Wavelength Range, μm: 0.302-2.43 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: Epitaxially-deposited thin film (280 Å thick); single crystal with orientation (100); data extracted from smooth curve.
Curve 2
Temperature K: 77 Wavelength Range, μm: 0.320-1.28 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: Above specimen and conditions.
Curve 1
Temperature K: 297 Wavelength Range, μm: 0.207-1.18 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: LEAD SELENIDE, PbSe; single crystal; cleaved; data extracted from smooth curve.
Curve 2
Temperature K: 297 Wavelength Range, μm: 0.0590-0.207 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: LEAD SELENIDE, PbSe; epitaxially-deposited layer, single crystal with (100) orientation on NaCl single crystal substrate; data extracted from smooth curve.
Curve 1
Temperature K: 297 Wavelength Range, μm: 0.264-2.65 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: LEAD SELENIDE, PbSe; epitaxially-deposited thin film (250 Å thick); single crystal with orientation (100); data extracted from smooth curve.
Curve 2
Temperature K: 77 Wavelength Range, μm: 0.253-1.13 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: Above specimen and conditions.
Curve 1
Temperature K: 297 Wavelength Range, μm: 0.207-1.55 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Single crystal; cleaved; data extracted from smooth curve.
Curve 2
Temperature K: 297 Wavelength Range, μm: 0.0620-0.207 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Epitaxially-deposited layer; single crystal with (100) orientation on KCl single crystal substrate; data extracted from smooth curve.
Curve 3
Temperature K: 297 Wavelength Range, μm: 0.207-1.55 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Single crystal; cleaved; data extracted from smooth curve.
Curve 4
Temperature K: 297 Wavelength Range, μm: 0.0620-0.207 Geometry θ' θ'': ~0°-0° Composition (weight percent), Specifications, and Remarks: Epitaxially-deposited layer; single crystal with (100) orientation on KCl single crystal substrate; data extracted from smooth curve.
Curve 1
Temperature K: 297 Wavelength Range, μm: 0.298-2.48 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: Epitaxially-deposited thin film (200 Å thick); single crystal with orientation (100); data extracted from smooth curve.
Curve 2
Temperature K: 77 Wavelength Range, μm: 0.247-1.77 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: Above specimen and conditions.
Curve 3
Temperature K: 297 Wavelength Range, μm: 0.298-2.48 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: Epitaxially-deposited thin film (200 Å thick); single crystal with orientation (100); data extracted from smooth curve.
Curve 4
Temperature K: 77 Wavelength Range, μm: 0.247-1.77 Geometry θ' θ'': 0° 0° Composition (weight percent), Specifications, and Remarks: Above specimen and conditions.