DOI: 10.1063/1.1710200. Thermal and Optical Energy Gaps in Pb0.93Sn0.07Te and Pb0.85Sn0.15Te

Thermal and Optical Energy Gaps in Pb0.93Sn0.07Te and Pb0.85Sn0.15Te

10.1063/1.1710200

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The optical absorption edge (indirect energy gap) was determined for Pb0.93Sn0.07Te and Pb0.85Sn0.15Te in the temperature range from 80° to 520°K. The variation of Eg with temperature indicated that two valence bands were operative. Below 300°K, linear variation of bandgap with temperature was observed yielding values of dEg/dT of 3.0−3.4×10−4 and 2.9−3.3×10−4 eV/°K for the Sn0.07 and Sn0.15 alloys, respectively. Above 400°K, dEg/dT was zero for both. The 0°K extrapolated values of Eg were 0.162 and 0.113 eV for the low-temperature range and about 0.28 and 0.24 eV for the high-temperature range, for Sn0.07 and Sn0.15, respectively. Electrical resistivity data obtained in the intrinsic range (above 500°K) yield thermal energy gaps of 0.30 and 0.23 eV for Sn0.07 and Sn0.15, respectively. A proposed band model for SnTe based on the compositional dependence of the energy gaps is presented.

Bibliography

Tauber, R. N., & Cadoff, I. B. (1967). Thermal and Optical Energy Gaps in Pb0.93Sn0.07Te and Pb0.85Sn0.15Te. Journal of Applied Physics, 38(9), 3714â3720.

Authors 2

R. N. Tauber (first)
I. B. Cadoff (additional)

References 25 Referenced 24

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{'key': '2024020209583538200_r4', 'first-page': '378', 'volume': '65B', 'year': '1952', 'journal-title': 'Proc. Phys. Soc. (London)'} / Proc. Phys. Soc. (London) (1952)
{'key': '2024020209583538200_r5', 'first-page': '2', 'volume': '67B', 'year': '1954', 'journal-title': 'Proc. Phys. Soc. (London)'} / Proc. Phys. Soc. (London) (1954)
10.1063/1.1702975 / J. Appl. Phys. (1965)
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{'key': '2024020209583538200_r8'}
10.1063/1.1777037 / J. Appl. Phys. (1961)
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10.1103/PhysRevLett.6.177 / Phys. Rev. Letters (1961)
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10.1016/0025-5416(66)90021-8 / Mater. Sci. Eng. (1966)
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10.1063/1.1729124 / J. Appl. Phys. (1963)
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Dates

Type	When
Created	20 years, 7 months ago (Jan. 15, 2005, 10:15 a.m.)
Deposited	1 year, 6 months ago (Feb. 2, 2024, 5:47 a.m.)
Indexed	1 year, 6 months ago (Feb. 2, 2024, 6:10 a.m.)
Issued	58 years ago (Aug. 1, 1967)
Published	58 years ago (Aug. 1, 1967)
Published Print	58 years ago (Aug. 1, 1967)

Funders 0

None

BibTeX

@article{Tauber_1967, title={Thermal and Optical Energy Gaps in Pb0.93Sn0.07Te and Pb0.85Sn0.15Te}, volume={38}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1710200}, DOI={10.1063/1.1710200}, number={9}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Tauber, R. N. and Cadoff, I. B.}, year={1967}, month=aug, pages={3714–3720} }

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