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Hybrid Supramolecular Naphthalene Diimide‐thiophene Structures and their Application in Polymer Electronics
Author(s) -
Krüger H.,
Janietz S.,
Sainova D.,
Dobreva D.,
Koch N.,
Vollmer A.
Publication year - 2007
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200700365
Subject(s) - materials science , thiophene , diimide , ambipolar diffusion , molecule , organic electronics , acceptor , organic field effect transistor , naphthalene , x ray photoelectron spectroscopy , organic semiconductor , photochemistry , field effect transistor , transistor , optoelectronics , organic chemistry , chemical engineering , chemistry , physics , plasma , perylene , quantum mechanics , voltage , engineering , condensed matter physics
Solution‐processable molecules based on 1,4,5,8‐naphthalenetetracarboxylic diimide (NTCDI, 1 ), which constitutes the central unit, have been synthesized with thiophene substituents of varying chain length attached to the naphthalene core. In this paper, the synthetic route to this new class of star‐shaped NTCDI derivatives are given. Cyclovoltammetric, UV spectroscopic, photoelectron spectroscopy, and field effect transistor measurements are performed to characterize the electronic and optical properties of the new materials. The relationship between the donor–acceptor structure and the electronic and optical properties is thus shown in detail. Organic field‐effect transistor devices have been built from this series of molecules and the results clearly describe the transfer from n‐type to an ambipolar character depending on the structural components, i.e., naphthalene, diimide, and thiophene, of the molecules.