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Naphthalene tetracarboxylic diimides (NDIs), possessing low-lying and tunable LUMO levels, are of wide interest for their aptitude to provide cost-effective, flexible, and environmentally stable n-type organic semiconductors through simple solution processing. NDI-based aromatic hydrazidimides are herein studied in relation to their chemical and environmental stability and as spin-coated stable thin films. In the case of the pentafluorinated residue, these were found to be crystalline, highly oriented, and molecularly flat (roughness = 0.3 nm), based on optical and atomic force microscopy, X-ray diffraction in specular and grazing incidence geometry, and X-ray reflectivity measurements. A new polymorph, previously undetected during the isolation of bulk powders or in their controlled thermal treatments, is found in the thin film and was metrically and structurally characterized from 2D GIWAXS patterns (monoclinic, P2/c …
American Chemical Society
Publication date: 
10 Nov 2023

Marco Zambra, Vincenzo Mirco Abbinante, Gonzalo García-Espejo, Konstantis F Konidaris, Pietro Anzini, Candida Pipitone, Francesco Giannici, Mattia Scagliotti, Matteo Rapisarda, Luigi Mariucci, Silvia Milita, Antonietta Guagliardi, Norberto Masciocchi

Biblio References: 
Volume: 8 Issue: 46 Pages: 43651-43663
ACS omega