Structure–property relationships in multifunctional thieno(bis)imide-based semiconductors with different sized and shaped N-alkyl ends

Autor: Raffaella Capelli, Lucia Maini, Gianluca Generali, Cristian Bettini, Michele Muccini, Susanna Cavallini, Denis Gentili, Massimo Gazzano, Federico Gallino, Stefano Toffanin, Viviana Biondo, Manuela Melucci, Margherita Durso, Massimiliano Cavallini
Přispěvatelé: Manuela Melucci, Margherita Durso, Cristian Bettini, Massimo Gazzano, Lucia Maini, Stefano Toffanin, Susanna Cavallini, Massimiliano Cavallini, Denis Gentili, Viviana Biondo, Gianluca Generali, Federico Gallino, Raffaella Capelli, Michele Muccini
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: JOURNAL OF MATERIALS CHEMISTRY C 2 (2014): 3448–3456. doi:10.1039/c3tc32538e
info:cnr-pdr/source/autori:Melucci, Manuela; Durso, Margherita; Bettini, Cristian; Gazzano, Massimo; Maini, Lucia; Toffanin, Stefano; Cavallini, Susanna; Cavallini, Massimiliano; Gentili, Denis; Biondo, Viviana; Generali, Gianluca; Gallino, Federico; Capelli, Raffaella; Muccini, Michele/titolo:Structure-property relationships in multifunctional thieno(bis)imide-based semiconductors with different sized and shaped N-alkyl ends/doi:10.1039%2Fc3tc32538e/rivista:JOURNAL OF MATERIALS CHEMISTRY C/anno:2014/pagina_da:3448/pagina_a:3456/intervallo_pagine:3448–3456/volume:2
Popis: The relationships between the molecular structure, packing modalities, charge mobility and light emission in organic thin films is a highly debated and controversial issue, with both fundamental and technological implications in the field of organic optoelectronics. Thieno(bis)imide (TBI) based molecular semiconductors provide an interesting combination of good processability, tunable self-assembly, ambipolar charge transport and electroluminescence, and are therefore an ideal test base for fundamental studies on the structure-property correlation in multifunctional molecular systems. Herein, we introduce a new class of thieno(bis)imide quaterthiophenes having alkyl side chains of different shapes (linear, cyclic, branched) and lengths (C1-C8). We found that contrarily to what is generally observed in most molecular semiconductors, the length of the alkyl substituent does not affect the optical, self-assembly and charge transport properties of TBI materials. However, different electroluminescence powers are observed by increasing the alkyl side, this suggesting a potential tool for the selective modulation of TBI functionalities. A deep experimental and theoretical investigation on this new family of TBI materials is provided. This journal is © the Partner Organisations 2014.
Databáze: OpenAIRE