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On the hopping mechanism of dispersive transport
Author(s) -
Zvyagin I. P.
Publication year - 1979
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.2220950125
Subject(s) - variable range hopping , continuous time random walk , trapping , condensed matter physics , mechanism (biology) , semiconductor , impurity , transient (computer programming) , range (aeronautics) , physics , materials science , random walk , statistical physics , electrical resistivity and conductivity , optoelectronics , quantum mechanics , mathematics , computer science , ecology , statistics , composite material , biology , operating system
The hopping mechanism of dispersive transport is discussed starting directly from the hopping transport equation, in contrast to the conventional approach using the continuous‐time random‐walk model. The power‐law decay of the transient current due to the spread of the packet of photo‐injected carriers, is obtained for impurity‐band hopping both in the presence of trapping and without it. The analysis shows that variable‐range hopping generally cannot be ruled out as a probable mechanism of dispersive transport in disordered semiconductors.