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Space‐Charge‐Limited Currents in Vitreous Antimony Trisulfide Films
Author(s) -
Budinas T.,
Mačkus P.,
Smilga A.,
Viščakas J.
Publication year - 1969
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19690310144
Subject(s) - antimony , trapping , space charge , current (fluid) , thermal conduction , materials science , polarization (electrochemistry) , condensed matter physics , voltage , trap (plumbing) , atomic physics , analytical chemistry (journal) , chemistry , electrical engineering , physics , thermodynamics , composite material , metallurgy , electron , nuclear physics , ecology , chromatography , meteorology , biology , engineering
For vitreous antimony trisulfide films (thickness 6.4 to 16.1 μm) the steady‐state current‐voltage characteristics were measured. The current proportional to U 2 d −3 are interpreted in terms of space‐charge‐limited currents (SCLC) with a single trap level. It is proved that a steep current increase at the end of the square‐law region is caused by trap filling. The values of the parameters of this trapping level calculated using two independent methods – from the temperature dependence of the reduction factor θ and from the trap‐filled limit (TFL) voltage – are in close agreement. The polarization the conduction mechanism of vitreous Sb 2 S 3 films at lower temperatures are discussed.