Real space demonstration of induced crystalline 3D nanostructuration of organic layers

La filiació de Marcos Paradinas Aranjuelo en el moment de la publicació és l'Institut Català de Nanociència i NanotecnologiaThe controlled 3D nanostructuration of molecular layers of the semiconducting molecules CH (pentacene) and N,N'-dioctyl-3,4,9,10-perylene tetracarboxylic diimide (PTCDI-C8) is addressed. A tip-assisted method using atomic force microscopy (AFM) is developed for removing part of the organic material and relocating it in up to six layer thick nanostructures. Moreover, unconventional molecular scale imaging combining diverse friction force microscopy modes reveals the stacking sequence of the piled layers. In particular, we unambiguously achieve epitaxial growth, an issue of fundamental importance in thin film strategies for the nanostructuration of more efficient organic nanodevices

Real Space Demonstration of Induced Crystalline 3D Nanostructuration of Organic Layers

The controlled 3D nanostructuration of molecular layers of the semiconducting molecules C22H14 (pentacene) and N,N′-dioctyl-3,4,9,10-perylene tetracarboxylic diimide (PTCDI-C8) is addressed. A tip-assisted method using atomic force microscopy (AFM) is developed for removing part of the organic material and relocating it in up to six layer thick nanostructures. Moreover, unconventional molecular scale imaging combining diverse friction force microscopy modes reveals the stacking sequence of the piled layers. In particular, we unambiguously achieve epitaxial growth, an issue of fundamental importance in thin film strategies for the nanostructuration of more efficient organic nanodevices.We thank M. Aghamohammadi for her help with the film growth. This work has been supported by the Spanish Government under projects MAT2013-47869-C4-1-P and MAT2016-77852-C2-1-R (AEI/FEDER, UE) and the Generalitat de Catalunya 2014 SGR501. We acknowledge the MINEICO project MAT2015-68994-REDC and the “Severo Ochoa” Program for Centers of Excellence in R&D (SEV-2015- 0496). M.P. thanks the Spanish Government for financial support through BES-2008-003588 FPI and PTA2014-09788-I fellowships.Peer reviewe