Photochemical solution deposition of beta-Bi2O3 thin films

Autor: Jesús Ricote, Rafael J. Jiménez-Riobóo, Daniel Chateigner, R. Sirera, Ricardo Jiménez, Iñigo Bretos, M. Lourdes Calzada, Dulce Pérez-Mezcua, Cosmelina Gonçalves da Silva, Luis E. Fuentes-Cobas
Přispěvatelé: Spanish National Research Council (CSIC), Universidad Pública de Navarra [Espagne] = Public University of Navarra (UPNA), Laboratoire de cristallographie et sciences des matériaux (CRISMAT), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Centro de Investigación en Materiales Avanzados (CIMAV), Spanish Project [MAT2013-40489-P, MAT2016-76851-R], Fundacion General CSIC (Spanish ComFuturoProgramme), École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC), Ministerio de Economía y Competitividad (España), Fundación General CSIC
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Low-temperature processing
Materials science
Metastable phases
Photochemistry
Thin films
chemistry.chemical_element
02 engineering and technology
Room-temperature stabilization
010402 general chemistry
01 natural sciences
Bismuth
Biomaterials
Tetragonal crystal system
Phase (matter)
Materials Chemistry
[CHIM.CRIS]Chemical Sciences/Cristallography
[CHIM]Chemical Sciences
Thin film
β-Bi2O3
Sol-gel
beta-Bi2O3
General Chemistry
[CHIM.MATE]Chemical Sciences/Material chemistry
Combustion chemical vapor deposition
021001 nanoscience & nanotechnology
Condensed Matter Physics
0104 chemical sciences
Electronic
Optical and Magnetic Materials
Amorphous solid
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry
Carbon film
chemistry
Chemical engineering
Ceramics and Composites
0210 nano-technology
Zdroj: Journal of Sol-Gel Science and Technology
Journal of Sol-Gel Science and Technology, 2017, 81 (2), pp.355-361. ⟨10.1007/s10971-016-4295-6⟩
Journal of Sol-Gel Science and Technology, Springer Verlag, 2017, 81 (2), pp.355-361. ⟨10.1007/s10971-016-4295-6⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
ISSN: 0928-0707
1573-4846
DOI: 10.1007/s10971-016-4295-6⟩
Popis: The non-equilibrium β-Bi2O3 polymorph is stabilized in thin films by a photochemical synthesis method. A strong ultraviolet-absorbing bismuth(III)-N-methyldiethanolamine complex is synthesized in solution as an ideal precursor for the β-Bi2O3 phase. Ultraviolet-light induces the formation of an amorphous —Bi—O—Bi— continuous network in the films deposited from the former solution that easily converts into the β-Bi2O3 polymorph at a temperature as low as 250 °C. The room temperature stabilization of the β-Bi2O3 phase is confirmed by their structural characterization using four-circle X-ray diffractometry. This study unequivocally identified the tetragonal crystal structure of the β-Bi2O3 polymorph in the films. The high phase purity of these β-Bi2O3 films is responsible for their exceptional visible-light photocatalytic activity, thus enabling the applications of the films of this metastable phase at room-temperature conditions.
This work has been financed by the Spanish Project MAT2013-40489-P and MAT2016-76851-R. I.B. acknowledges the financial support by Fundación General CSIC (Spanish ComFuturoProgramme).
MINECO/ICTI2013-2016/MAT2016-76851-R
Databáze: OpenAIRE
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