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Effect of temperature and rare-earth doping on charge-carrier mobility in indium-monoselenide crystals

Journal Article · · Semiconductors
In the temperature range T = 77-600 K, the dependence of the charge-carrier mobility ({mu}) on the initial dark resistivity is experimentally investigated at 77 K ({rho}d{sub 0}), as well as on the temperature and the level (N) of rare-earth doping with such elements as gadolinium (Gd), holmium (Ho), and dysprosium (Dy) in n-type indium-monoselenide (InSe) crystals. It is established that the anomalous behavior of the dependences {mu}(T), {mu}({rho}d{sub 0}), and {mu}(N) found from the viewpoint of the theory of charge-carrier mobility in crystalline semiconductors is related, first of all, to partial disorder in indium-monoselenide crystals and can be attributed to the presence of random drift barriers in the free energy bands.
OSTI ID:
22210588
Journal Information:
Semiconductors, Journal Name: Semiconductors Journal Issue: 8 Vol. 47; ISSN SMICES; ISSN 1063-7826
Country of Publication:
United States
Language:
English

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