Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/97985
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Fàbrega i Claveria, Ma. Carme | - |
dc.contributor.author | Murcia López, Sebastián | - |
dc.contributor.author | Monllor-Satoca, D. | - |
dc.contributor.author | Prades García, Juan Daniel | - |
dc.contributor.author | Hernández-Alonso, M.D. | - |
dc.contributor.author | Penelas, G. | - |
dc.contributor.author | Morante i Lleonart, Joan Ramon | - |
dc.contributor.author | Andreu Arbella, Teresa | - |
dc.date.accessioned | 2016-04-28T10:55:34Z | - |
dc.date.available | 2018-02-26T23:01:12Z | - |
dc.date.issued | 2016-02-26 | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.uri | http://hdl.handle.net/2445/97985 | - |
dc.description.abstract | In this work, we present a systematic study on the synthesis of monoclinic gamma - WO3 obtained using pulsed laser deposition (PLD). A photocurrent of 2.4 mA/cm2 (60% of the optical maximum for a 2.7 eV gap material) was obtained for films as thick as 18 micro_m. FE-SEM images revealed that WO3 films were actually formed by an array of oriented columns. Efficient hole extraction towards the electrolyte was observed and attributed to a possible accommodation of the electrolyte between the WO3 columns, even for relatively compact films. This feature, combined with the detailed optical absorption and IPCE characterization, allowed us to implement a double-stack configuration of WO3 photoanodes which resulted in a remarkable photocurrent density of 3.1 mA·cm-2 with 1 sun AM1.5G illumination in 0.1 M H2SO4 electrolyte. Faradaic efficiencies of more than 50% was obtained without co-catalyst, which is one the highest values reported for pure WO3. By adding a 3 nm layer of Al2O3 by ALD, a faradaic efficiency of 80% was reached without diminishing the photocurrent density. | - |
dc.format.extent | 8 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.apcatb.2016.02.047 | - |
dc.relation.ispartof | Applied Catalysis B-Environmental, 2016, vol. 189, p. 133-140 | - |
dc.relation.uri | http://dx.doi.org/10.1016/j.apcatb.2016.02.047 | - |
dc.rights | cc-by-nc-nd (c) Elsevier B.V., 2016 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es | - |
dc.source | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) | - |
dc.subject.classification | Conversió directa de l'energia | - |
dc.subject.classification | Làsers | - |
dc.subject.classification | Pel·lícules fines | - |
dc.subject.other | Direct energy conversion | - |
dc.subject.other | Lasers | - |
dc.subject.other | Thin films | - |
dc.title | Efficient WO3 photoanodes fabricated by pulsed laser deposition for photoelectrochemical water splitting with high faradaic efficiency | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 661395 | - |
dc.date.updated | 2016-04-28T10:55:39Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
661395.pdf | 2.7 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License