Current–Voltage Characteristics of EuGa2S4 Single Crystals.

Autor: Tagiev, O., Gasanova, S., Talybova, D.
Zdroj: Inorganic Materials; May2002, Vol. 38 Issue 5, p445-446, 2p
Abstrakt: The current–voltage characteristics of EuGa2S4 single crystals were measured from 80 to 300 K with the aim of elucidating the mechanism of electrical transport. The results, interpreted as evidence of space-charge-limited currents with an exponential distribution of trap energies, were used to determine the trap depth ( Et = 0.30 eV), trap concentration ( Nt = 4 × 1013 cm–3), Fermi energy ( EF = 0.51 eV), equilibrium carrier concentration ( p0 = 9 × 109 cm–3), contact potential difference (Δϕ = 0.43 eV), and shift of the Fermi level (Δ EF = 0.09 eV). [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index