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Molecular and Electronic‐Structure Basis of the Ambipolar Behavior of Naphthalimide–Terthiophene Derivatives: Implementation in Organic Field‐Effect Transistors |
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| Authors: | Dr Rocío Ponce Ortiz Dr Helena Herrera Prof María J Mancheño Prof Carlos Seoane Prof José L Segura Paula Mayorga Burrezo Prof Juan Casado Prof J Teodomiro López Navarrete Dr Antonio Facchetti Prof Tobin J Marks |
| Institution: | 1. Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois, 60208 (USA);2. Department of Physical Chemistry, University of Málaga, 29071 Málaga (Spain);3. Department of Organic Chemistry, Complutense University of Madrid, Faculty of Chemistry, 28040 Madrid (Spain) |
| Abstract: | A new family of naphthalimide‐fused thienopyrazine derivatives for ambipolar charge transport in organic field‐effect transistors is presented. Their electronic and molecular structures were elucidated through optical and vibrational spectroscopy aided by DFT calculations. The results indicate that these compounds have completely planar molecular skeletons which promote good film crystallinity and low reorganization energies for both electron and hole transport. Their performance in organic field‐effect transistors is compared with twisted and planar naphthaleneamidine monoimide‐fused terthiophenes in order to understand the origin of ambipolarity in this new series of molecular semiconductors. |
| Keywords: | ambipolarity density functional calculations molecular electronics semiconductors thin films |