1. Highly crystalline and fluorescent BODIPY-labelled phenyl-triazole-coumarins as n-type semiconducting materials for OFET devices
- Author
-
José Emilio de la Cerda-Pedro, Oscar Javier Hernández-Ortiz, Rosa Angeles Vázquez-García, Efrén V. García-Báez, Ramón Gómez-Aguilar, Arián Espinosa-Roa, Norberto Farfán, and Itzia I. Padilla-Martínez
- Subjects
Phenyl-triazole ,OFET ,BODIPY ,Organic semiconductor ,Organic small molecule devices ,Organic field‐effect transistors ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
In this work, the synthesis of BODIPY-phenyl-triazole labelled coumarins (BPhTCs) using a two-step approach is described. The influence of the BODIPY appending on the photophysical, electrochemical and thermal properties of the phenyl-triazole-coumarin precursors (PhTCs) was investigated. Band gap energies were measured by absorption spectroscopy (2.20 ± 0.02 eV in the solid and 2.35 ± 0.01 eV in solution) and cyclic voltammetry (2.10 ± 0.05 eV). The results are supported by DFT calculations confirming the presence of lowest LUMO levels that facilitate the electron injection and stabilize the electron transport. Their charge-transport parameters were measured in Organic Field-Effect Transistor (OFET) devices. BPhTCs showed an ambipolar transistor behavior with good n-type charge mobilities (10−2 cm2V−1s−1) allowing these derivatives to be employed as promising semiconducting crystalline and fluorescent materials with good thermal and air stability up to 250 °C.
- Published
- 2024
- Full Text
- View/download PDF