Eur. Phys. J. AP
Volume 18, Number 1, April 2002
|Page(s)||3 - 8|
|Section||Semiconductors and Devices|
|Published online||15 April 2002|
Photochromic oligothiophene substituted chromenes a new approach towards a molecular switch: electrical characterisation*
ITODYS, 1 rue Guy de la Brosse, 75005 Paris, France
2 Laboratoire de chimie organique, Faculté des sciences et techniques, Settat, Morocco
3 LCMOM, ERS CNRS 158, Faculté des sciences de Luminy, 163 avenue de Luminy, 13288 Marseille Cedex 09, France
Corresponding author: Yassar@Paris7.Jussieu.fr
Revised: 19 November 2001
Accepted: 24 January 2002
Published online: 15 April 2002
We present a new approach for the realisation of a molecular photo-switch, based on photochrochromic oligothiophene-substituted chromenes. When optically excited, these compounds undergo a structural change passing from a neutral state (closed form) to a strongly polarized one (open form). This photochromic process is accompanied by a deep changes in the electrical characterisation.
PACS: 78.55.Kz – Solid organic materials / 72.20.Jv – Charge carriers: generation, recombination, lifetime, and trapping / 73.61.Ph – Polymers; organic compounds
© EDP Sciences, 2002
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