Non-Covalent strategy to fabricate solid state porphyrin based devices

Hybrid molecular-based nanomaterials represent, nowadays, a successful solution to satisfy technological demands of chemical memory devices and sensors. Development of non-covalent fabrication strategies based on solution 6 sur 20 06/05/2013 09:42 EMRS - Strasbourg http://www.emrs-strasbourg.com/index.php?option=com_abstract&task... processing, pave the way for cost-effective and large-area implementation. Porphyrins represent a valid example of stimuli-responsive chromophores able to undergo reversible optical changes upon a wide variety of external stimuli. What is more their intrinsic chirality sheds light on the possibility to explore their use in chiral molecular devices. In order to use these intriguing molecules as active layers in solid-state devices, they have to be deposited on solid supports. Herein, a full non-covalent strategy, based on organic layer spontaneous adsorption onto high surface area substrates (i.e ZnO nanostructures or polymeric nanofibers) is proven effective to overcome the sensitivity limitations of monolayers deposition on flat surfaces. The obtained results appear promising for a rationale material design achieved by modulating surface properties and molecular functionalities.