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Evolution of a Space Charge Limited Current Regime in Organic Crystals
Author(s) -
Pope Martin,
Kallmann Hartmut
Publication year - 1972
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.197200033
Subject(s) - trapping , chemistry , anthracene , space charge , electron , charge (physics) , exciton , chemical physics , current (fluid) , dimer , condensed matter physics , space (punctuation) , atomic physics , molecular physics , photochemistry , physics , quantum mechanics , thermodynamics , ecology , linguistics , philosophy , organic chemistry , biology
Recently published data dealing with interactions of triplet excitons with trapped holes and trapped electrons in anthracene are interpreted in accordance with well‐known but often neglected concepts of the evolution of a space charge limited current (SCLC) in insulators. Discrete, closely spaced trapping levels are delineated, and it is proposed that SCLC do not commence in some crystals until the applied voltage exceeds 2000 V. It is suggested that dimer clusters act as trapping sites.