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Pàgina inicial > Articles > Articles publicats > Structurally and mechanically tunable molybdenum oxide films and patterned submicrometer structures by electrodeposition |
Data: | 2015 |
Resum: | 1. 5 μm-thick molybdenum oxide films have been electrodeposited potentiostatically from 0. 2 M Na₂MoO₄ electrolyte onto indium tin oxide (ITO)/glass substrates at pH = 1, 6 and 9. The influence of cetyltrimethylammonium bromide (CTAB) surfactant on films' adhesion, morphology, degree of porosity, molybdenum speciation, and crystallographic structure has been systematically investigated. The addition of CTAB (0. 01 M) to the bath clearly improves film adherence to the substrate, reduces cracking, and increases crystallinity. This has an impact on the physical properties of the films. In particular, both hardness (H) and Young's modulus (E) increase, as determined from nanoindentation tests. The growth of ordered arrays of molybdenum oxide submicrometer structures, including pillars and stripes, by electrodeposition onto e-beam lithographed Au/Ti/Si substrates is also reported. |
Ajuts: | Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1015 Agència de Gestió d'Ajuts Universitaris i de Recerca 2013/ BP-B 00077 Ministerio de Economía y Competitividad MAT2011-27380-C02-01 Ministerio de Economía y Competitividad CTS-11/07 Ministerio de Economía y Competitividad RYC-2012-10839 |
Nota: | Altres ajuts: M. Guerrero acknowledges the support of the Secretary for Universities and Research of the Government of Catalonia and the COFUND Programme of the Marie Curie Actions of the 7th R&D Framework Programme of the European Union for the 'Beatriu de Pinos' contract (2013 BP-B 00077). M. D. Baró acknowledges partial financial support from an ICREA-Academia Award. |
Drets: | Tots els drets reservats. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Matèria: | Molybdenum oxide ; Electrodeposition ; Cationic surfactant ; X-ray diffraction ; Mechanical properties |
Publicat a: | Electrochimica acta, Vol. 173 (Aug. 2015) , p. 705-714, ISSN 1873-3859 |
Post-print 40 p, 4.0 MB |