RT Conference Proceedings T1 Investigation of the charge-transport and optoelectronic properties of carbazole-based macrocycles A1 Badía-Domínguez, María Irene A1 Yang, Anna A1 Moore, Jeffrey A1 Huang, Feihe A1 González Núñez, Raúl A1 Gámez-Valenzuela, Sergio A1 Hernández-Jolín, Víctor A1 Ruiz-Delgado, María del Carmen A1 Ponce-Ortiz, Rocío K1 Electrónica orgánica K1 Compuestos macrocíclicos K1 Semiconductores K1 Química física K1 Estructura molecular K1 Optoelectrónica AB 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. YR 2022 FD 2022 LK https://hdl.handle.net/10630/24176 UL https://hdl.handle.net/10630/24176 LA eng NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 mar 2026