METHODS OF ELECTRON-STRUCTURE SPECTROSCOPY IN MOLECULAR ORGANIC-SOLIDS BASED ON SPACE-CHARGE CONDUCTIVITY

Space-charge-limited currents (SCLC) in steady state (S-SCLC) may be w ith advantage used as tools for the study of the density of localized states (DOS) in disordered inorganic and organic semiconductors. S-SCL C are observed with advantage in high resistivity materials with mobil e carriers. In this paper the S-SCLC method is presented, focusing on the DOS evaluation, steady-state drift mobility, temperature dependenc e of S-SCLC and the statistical shift of the Fermi level in S-SCLC, SC LC in organic materials with amphoteric defects and contact limitation s as a result of detailed modelling of real structures exhibiting SCLC . Paper may serve as a review of the present state of the space-charge -limited currents theory.