DOI: 10.1063/1.365397. n-Type conduction in Pb doped Se

n-Type conduction in Pb doped Se–In chalcogenide glasses

10.1063/1.365397

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

This paper reports on the p to n transition in Pb doped Se–In chalcogenide glasses. Measurements of thermoelectric power in the temperature range 300 K⩽T⩽315 K, dc conductivity in the temperature range 100⩽T⩽300 K, and optical band gap (Egopt) have been carried out for Se75In25−xPbx (x=0,5,10,15) samples. The p-n transition occurs with very low addition of Pb impurity (5 at. %). The conductivity and pre-exponential factor also change by five to six orders of magnitude with Pb doping. Results are explained on the basis of the formation of ionic Pb–Se bonds, instead of covalent bonds. Formation of ionic bonds disturbs the equilibrium between the charged defect states of Se–In glass and unpins the Fermi level and thus leads to n-type conduction in these glasses.

Bibliography

Mehra, R. M., Kohli, S., Pundir, A., Sachdev, V. K., & Mathur, P. C. (1997). n-Type conduction in Pb doped SeâIn chalcogenide glasses. Journal of Applied Physics, 81(12), 7842â7844.

Authors 5

R. M. Mehra (first)
Sandeep Kohli (additional)
Amit Pundir (additional)
V. K. Sachdev (additional)
P. C. Mathur (additional)

References 12 Referenced 39

10.1063/1.90621 / Appl. Phys. Lett. (1979)
10.1103/PhysRevB.38.6342 / Phys. Rev. B (1988)
{'key': '2024020219154239200_r3', 'first-page': '1015', 'volume': '59 & 60', 'year': '1983', 'journal-title': 'J. Non-Cryst. Solids'} / J. Non-Cryst. Solids (1983)
10.1063/1.327710 / J. Appl. Phys. (1980)
10.1016/0022-3093(80)90475-5 / J. Non-Cryst. Solids (1980)
10.1063/1.335556 / J. Appl. Phys. (1985)
{'key': '2024020219154239200_r7', 'first-page': '809', 'volume': '95 & 96', 'year': '1987', 'journal-title': 'J. Non-Cryst. Solids'} / J. Non-Cryst. Solids (1987)
10.1007/BF00557128 / J. Mater. Sci. (1991)
10.1016/0022-3093(95)00288-X / J. Non-Cryst. Solids (1995)
{'key': '2024020219154239200_r10'}
10.1080/01418637808227669 / Philos. Mag. B (1978)
10.1103/PhysRevLett.28.355 / Phys. Rev. Lett. (1972)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:37 a.m.)
Deposited	1 year, 6 months ago (Feb. 2, 2024, 3:09 p.m.)
Indexed	2 months, 1 week ago (June 16, 2025, 9:07 a.m.)
Issued	28 years, 2 months ago (June 15, 1997)
Published	28 years, 2 months ago (June 15, 1997)
Published Print	28 years, 2 months ago (June 15, 1997)

Funders 0

None

BibTeX

@article{Mehra_1997, title={n-Type conduction in Pb doped Se–In chalcogenide glasses}, volume={81}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.365397}, DOI={10.1063/1.365397}, number={12}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Mehra, R. M. and Kohli, Sandeep and Pundir, Amit and Sachdev, V. K. and Mathur, P. C.}, year={1997}, month=jun, pages={7842–7844} }

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