@misc{10498/39380,
year = {2025},
url = {http://hdl.handle.net/10498/39380},
abstract = {(Sb,Bi)(S,Se)(Br,I) pnictogen chalcohalides constitute an emerging family of Van der Waals (VdW) semiconductors with remarkable potential for energy-related applications, including photovoltaics (PV), photocatalysis (PC), and photoelectrocatalysis (PEC). These ternary compounds exhibit a quasi-1D orthorhombic crystalline phase, and an electronic structure analogous to lead-halide perovskites, making them promising candidates for sustainable and high-performance energy devices. This study introduces a new versatile and adaptable synthesis methodology, which combines co-evaporation of binary chalcogenides with reactive annealing under high-pressure halide atmospheres, to fabricate the eight (Sb,Bi)(S,Se)(Br,I) chalcohalides. Comprehensive structural, compositional, and optoelectronic analyses reveal a wide bandgap range (1.2–2.2 eV), high absorption coefficients, and anisotropic properties driven by unique ribbon-like morphology. Theoretical and experimental results highlight their high stability, versatile chemical adaptability, and defect-tolerant characteristics. Moreover, the distinct differences in morphology and crystallization between Sb and Bi-based compounds, as well as the influence of chalcogen and halogen elements on the optical and structural properties are discussed. Demonstrations of functional devices, including photocatalytic systems, underscore the practical viability of these materials. This work establishes a foundation for the development of pnictogen chalcohalides as scalable and eco-friendly alternatives for advanced energy applications.},
publisher = {Wiley},
keywords = {anisotropic materials},
keywords = {chalcohalides},
keywords = {photoelectrocatalysis},
keywords = {photovoltaics},
keywords = {Van der Waals},
title = {Ribbons of Light: Emerging (Sb,Bi)(S,Se)(Br,I) Van der Waals Chalcohalides for Next-Generation Energy Applications},
doi = {10.1002/SMLL.202505430},
author = {Caño, Iván and Navarro-Güell, A. and Edoardo Maggi and Maggi, Edoardo and Gon Medaille, Axel and Rovira, David and Jimenez-Arguijo, Alex and Segura, Oriol and Torrens, Arnau and Jimenez, Maykel and López, Cibrán and Benítez, Pol and Cazorla, Claudi and Jehl, Zac and Gong, Yuancai and Asensi, José Miguel and Calvo Barrio, Lorenzo and Soler, Lluís and Llorca, Jordi and Tamarit, Josep Lluís and Galiana, Beatriz and Dimitrievska, Mirjana and Ruiz Marín, Nazaret and Chun, Hao Zhe and Wong, Lydia and Puigdollers, Joaquim and Placidi, Marcel and Saucedo, Edgardo},
}