Deposition and characterisation of sputtered molybdenum oxide thin films with hydrogen atmosphere

Sputtered films of reduced molybdenum oxide (MoOx) with a molybdenum trioxide target in different pressures and atmospheres were deposited in varying temperatures. Compositional, optic, and electric characteristics of the samples were studied. X-ray photoelectron spectroscopy revealed reduced states...

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Detalles Bibliográficos
Autores: López-Pintó, Nicolau, Tom, Thomas, Bertomeu i Balagueró, Joan, Asensi López, José Miguel, Ros Costals, Eloi, Ortega Villasclaras, Pablo Rafael, Voz Sánchez, Cristóbal
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/178437
Acceso en línea:https://hdl.handle.net/2445/178437
Access Level:acceso abierto
Palabra clave:Pel·lícules fines
Molibdè
Thin films
Molybdenum
Descripción
Sumario:Sputtered films of reduced molybdenum oxide (MoOx) with a molybdenum trioxide target in different pressures and atmospheres were deposited in varying temperatures. Compositional, optic, and electric characteristics of the samples were studied. X-ray photoelectron spectroscopy revealed reduced states when working in the hydrogen + argon atmosphere implying that stoichiometry could be controlled by adding some hydrogen in the sputtering chamber. The effect of slightly increasing the substrate temperature during deposition was also studied and lead to the presence of metastable Mo4+ states at 3 mTorr. Optical properties match the ones already in the literature, and transmittances of 90% were achieved. The results support sputtering as a viable method of depositing MoOx films apart from thermal evaporation for many applications.