RT journal article T1 Morphology does not matter: WSe2 luminescence nanothermometry unravelled A1 Martínez Merino, Paloma A1 Hernández Rodríguez, Miguel A. A1 Piñero Charlo, José Carlos A1 Brites, Carlos D. S. A1 Alcántara Puerto, Rodrigo A1 Navas Pineda, Francisco Javier A2 Didáctica A2 Química Física AB Transition metal dichalcogenides, including WSe2, have gained significant attention as promising nanomaterials for various applications due to their unique properties. In this study, we explore the temperature-dependent photoluminescent properties of WSe2 nanomaterials to investigate their potential as luminescent nanothermometers. We compare the performance of WSe2 quantum dots and nanorods synthesized using sonication synthesis and hot injection methods. Our results show a distinct temperature dependence of the photoluminescence, and conventional ratiometric luminescence thermometry demonstrates comparable relative thermal sensitivity (0.68–0.80% K−1) and temperature uncertainty (1.3–1.5 K), irrespective of the morphology of the nanomaterials. By applying multiple linear regression to WSe2 quantum dots, we achieve enhanced thermal sensitivity (30% K−1) and reduced temperature uncertainty (0.1 K), highlighting the potential of WSe2 as a versatile nanothermometer for microfluidics, nanofluidics, and biomedical assays. PB Royal Society of Chemistry SN 2040-3364 YR 2024 FD 2024 LK http://hdl.handle.net/10498/33499 UL http://hdl.handle.net/10498/33499 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 22-sep-2026