Abstract
The performance of organic field effect transistors using the small molecule, tri-isopropyl- silane-di-benzo chrysene (TIPS-DBC) is reported. The field effect mobility FE is found to depend on the deposition conditions, which affect the morphology of the film. A mobility in the range of 1.5×10 -6 to 2.4×10 -4cm 2V -1s -1 is obtained from the evaporated films depending on the substrate treatment and deposition temperature, while films deposited by solution-processing techniques yield mobilities in the range of 0.7×10 -3 to 1.5×10 -3cm 2V -1s -1. The enhanced performance in polycrystalline solution-processed coatings and its relationship to crystallite size is an important parameter in the design of high-performance devices based on small molecules.
Original language | English |
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Article number | 045104 |
Pages (from-to) | 045104-1-045104-7 |
Number of pages | 7 |
Journal | Journal of Physics D-Applied Physics |
Volume | 45 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Feb 2012 |