2026-06-01T22:18:58Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/241762026-02-03T12:21:31Zcom_10630_2254col_10630_37959

00925njm 22002777a 4500 dc Badía-Domínguez, María Irene author Yang, Anna author Moore, Jeffrey author Huang, Feihe author González Núñez, Raúl author Gámez-Valenzuela, Sergio author Hernández-Jolín, Víctor author Ruiz-Delgado, María del Carmen author Ponce-Ortiz, Rocío author 2022 Molecular systems have proven to be efficient active materials in electronics, being possible alternatives to the inorganic semiconductors used nowadays in electronic devices. In this project, an experimental and theoretical study of two carbazole-based macrocycles is presented (Figure 1). Specifically, we investigated the impact of the inclusion of acetylene groups on the electronic and molecular structures of these macrocycles, as well as their potential as charge transporting materials. The first studied compound (Cz) is composed by four carbazole groups linked at their para position with respect to the nitrogen atom1.In the second compound (ACz), the carbazole units are connected through ethynylene groups2. For this study, Raman and UV-Vis absorption spectroscopies have been used in combination with theoretical calculations based on the density functional theory (DFT). In addition, the two studied compounds have been implemented in organic field-effect transistors (OFETs), to assess their potential as active materials in organic electronics. Overall, the inclusion of ethynylene groups as π-conjugated spacers is found to be a good strategy to improve the electronic delocalization in macrocycles. https://hdl.handle.net/10630/24176 Electrónica orgánica Compuestos macrocíclicos Semiconductores Química física Estructura molecular Optoelectrónica Investigation of the charge-transport and optoelectronic properties of carbazole-based macrocycles