Field Effect in PbSnTe:In Films with Low Conductivity in the Mode of Injection from Contacts and Space-Charge Limitation of the Current

At T = 4.2 K, a strong change (up to 4 times) in the space-charge-limited current (SCLC) is observed for the first time at samples based on semi-insulating PbSnTe:In films grown by molecular-beam epitaxy on BaF 2 (111) substrates. The obtained results agree with experiments on the effect of treatmen...

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Bibliographic Details
Published in:Semiconductors (Woodbury, N.Y.) N.Y.), 2018-12, Vol.52 (12), p.1505-1510
Main Authors: Akimov, A. N., Klimov, A. E., Epov, V. S.
Format: Article
Language:English
Subjects:
2018
BARIUM FLUORIDES
CHARGE CARRIERS
Charge injection
Current carriers
Epitaxial growth
INJECTION
Low conductivity
Magnetic Materials
Magnetism
March 12–15
MATERIALS SCIENCE
MOLECULAR BEAM EPITAXY
Nizhny Novgorod
Physics
Physics and Astronomy
SPACE CHARGE
Substrates
Xxii International Symposium “Nanophysics and Nanoelectronics”
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Summary:At T = 4.2 K, a strong change (up to 4 times) in the space-charge-limited current (SCLC) is observed for the first time at samples based on semi-insulating PbSnTe:In films grown by molecular-beam epitaxy on BaF 2 (111) substrates. The obtained results agree with experiments on the effect of treatment of the surface of PbSnTe:In films on the space-charge-limited current with a variation in the current to 10 3 times or more. At a qualitative level, the model is considered which assumes the substantial contribution of localized surface states to space charge formed in the mode of space-charge-limited current due to the injection of charge carriers from contacts.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782618120035