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Taner Camci M, Pauly M, Lefevre C, Bouillet C, Maaloum M, Decher G, Martel D. Polarization-dependent optical band gap energy of aligned semiconducting titanium oxide nanowire deposits. NANOSCALE 2021; 13:8958-8965. [PMID: 33969852 DOI: 10.1039/d1nr01236c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thin deposits of aligned semiconducting titanium oxide and of zinc oxide nanowires are prepared by grazing incidence spraying on transparent substrates. By measuring the transmittance of linearly polarized light of these anisotropic assemblies as compared to that of randomly oriented nanowires and of spherical nanoparticles, we find that titanium oxide nanowires exhibit an orientation-dependent variation of the apparent optical band gap energy at room temperature (>100 meV), depending on the direction of the polarization of the light with respect to the direction of alignment of the nanowires.
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Affiliation(s)
- Merve Taner Camci
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France.
| | - Matthias Pauly
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France.
| | - Christophe Lefevre
- Université de Strasbourg, CNRS, Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, F-67000 Strasbourg, France
| | - Corinne Bouillet
- Université de Strasbourg, CNRS, Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, F-67000 Strasbourg, France
| | - Mounir Maaloum
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France.
| | - Gero Decher
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France. and Faculté de Chimie, Université de Strasbourg, 1 rue Blaise Pascal, F-67008 Strasbourg, France and International Center for Frontier Research in Chemistry, 8 allée Gaspard Monge, F-67083 Strasbourg, France and International Center for Materials Nanoarchitectonics, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
| | - David Martel
- Université de Strasbourg, CNRS, Institut Charles Sadron (ICS), UPR 22, F-67000 Strasbourg, France.
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Twardoch M, Messai Y, Vileno B, Hoarau Y, Mekki DE, Felix O, Turek P, Weiss J, Decher G, Martel D. Development of an electron paramagnetic resonance methodology for studying the photo-generation of reactive species in semiconductor nano-particle assembled films. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1433882] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Marek Twardoch
- Institut Charles Sadron, Université de Strasbourg, CNRS, Strasbourg, France
| | - Youcef Messai
- Institut de Chimie, UMR 7177, Université de Strasbourg, CNRS, Strasbourg, France
- Laboratoire d'Etude Des Surfaces et Interfaces de La Matière Solide (LESIMS), Université Badji Mokhtar, Annaba, Algeria
| | - Bertrand Vileno
- Institut de Chimie, UMR 7177, Université de Strasbourg, CNRS, Strasbourg, France
- French EPR Federation of Research (REseau NAtional de RPE interDisciplinaire (RENARD), Fédération IR-RPE CNRS #3443), Lille, France
| | - Yannick Hoarau
- Laboratoire des Sciences de l'Ingénieur, de l'Informatique et de l'Imagerie, UMR 7357, Université de Strasbourg, CNRS, Strasbourg, France
| | - Djamel E. Mekki
- Laboratoire d'Etude Des Surfaces et Interfaces de La Matière Solide (LESIMS), Université Badji Mokhtar, Annaba, Algeria
| | - Olivier Felix
- Institut Charles Sadron, Université de Strasbourg, CNRS, Strasbourg, France
| | - Philippe Turek
- Institut de Chimie, UMR 7177, Université de Strasbourg, CNRS, Strasbourg, France
- French EPR Federation of Research (REseau NAtional de RPE interDisciplinaire (RENARD), Fédération IR-RPE CNRS #3443), Lille, France
| | - Jean Weiss
- Institut de Chimie, UMR 7177, Université de Strasbourg, CNRS, Strasbourg, France
| | - Gero Decher
- Institut Charles Sadron, Université de Strasbourg, CNRS, Strasbourg, France
- International Center for Frontier Research in Chemistry, Strasbourg, France
| | - David Martel
- Institut Charles Sadron, Université de Strasbourg, CNRS, Strasbourg, France
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Song J, Yan L, Duan J, Jing C. TiO2 crystal facet-dependent antimony adsorption and photocatalytic oxidation. J Colloid Interface Sci 2017; 496:522-530. [DOI: 10.1016/j.jcis.2017.02.054] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 02/20/2017] [Accepted: 02/22/2017] [Indexed: 10/20/2022]
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