Journal
JOURNAL OF APPLIED PHYSICS
Volume 95, Issue 3, Pages 1196-1202Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1631079
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We report on a systematic study of electronic transport in tetracene single crystals by means of space charge limited current spectroscopy and time of flight measurements. Both I-V and time of flight measurements show that the room-temperature effective hole mobility reaches values close to musimilar or equal to1 cm(2)/V s and that, within a range of temperatures, the mobility increases with decreasing temperature. The experimental results further allow the characterization of different aspects of the tetracene crystals. In particular, the effects of both deep and shallow traps are clearly visible and can be used to estimate their densities and characteristic energies. The results presented in this article show that the combination of I-V measurements and time of flight spectroscopy is very effective in characterizing several different aspects of electronic transport through organic crystals. (C) 2004 American Institute of Physics.
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