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Lewandowski AL, Tosoni S, Gura L, Schlexer P, Marschalik P, Schneider W, Heyde M, Pacchioni G, Freund H. From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Adrián L. Lewandowski
- Department of Chemical PhysicsFritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Germany
| | - Sergio Tosoni
- Department of Materials ScienceUniversità di Milano-Bicocca Via R. Cozzi, 55 Milan Italy
| | - Leonard Gura
- Department of Chemical PhysicsFritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Germany
| | - Philomena Schlexer
- Department of Materials ScienceUniversità di Milano-Bicocca Via R. Cozzi, 55 Milan Italy
| | - Patrik Marschalik
- Department of Chemical PhysicsFritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Germany
| | - Wolf‐Dieter Schneider
- Department of Chemical PhysicsFritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Germany
| | - Markus Heyde
- Department of Chemical PhysicsFritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Germany
| | - Gianfranco Pacchioni
- Department of Materials ScienceUniversità di Milano-Bicocca Via R. Cozzi, 55 Milan Italy
| | - Hans‐Joachim Freund
- Department of Chemical PhysicsFritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Germany
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Lewandowski AL, Tosoni S, Gura L, Schlexer P, Marschalik P, Schneider WD, Heyde M, Pacchioni G, Freund HJ. From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization. Angew Chem Int Ed Engl 2019; 58:10903-10908. [PMID: 31050096 PMCID: PMC6771709 DOI: 10.1002/anie.201903922] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Indexed: 11/18/2022]
Abstract
A new two‐dimensional (2D) germanium dioxide film has been prepared. The film consists of interconnected germania tetrahedral units forming a bilayer structure, weakly coupled to the supporting Pt(111) metal‐substrate. Density functional theory calculations predict a stable structure of 558‐membered rings for germania films, while for silica films 6‐membered rings are preferred. By varying the preparation conditions the degree of order in the germania films is tuned. Crystalline, intermediate ordered and purely amorphous film structures are resolved by analysing scanning tunnelling microscopy images.
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Affiliation(s)
- Adrián L Lewandowski
- Department of Chemical Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Sergio Tosoni
- Department of Materials Science, Università di Milano-Bicocca, Via R. Cozzi, 55, Milan, Italy
| | - Leonard Gura
- Department of Chemical Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Philomena Schlexer
- Department of Materials Science, Università di Milano-Bicocca, Via R. Cozzi, 55, Milan, Italy
| | - Patrik Marschalik
- Department of Chemical Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Wolf-Dieter Schneider
- Department of Chemical Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Markus Heyde
- Department of Chemical Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Gianfranco Pacchioni
- Department of Materials Science, Università di Milano-Bicocca, Via R. Cozzi, 55, Milan, Italy
| | - Hans-Joachim Freund
- Department of Chemical Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
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Tosello C, Ronchin S, Moser E, Montagna M, Mazzoldi P, Gonella F, Ferrari M, Duverger C, Belli R, Battaglin G. Optical properties and structural characterization of erbium-activated SiO2-TiO2 planar waveguides prepared by rf sputtering. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/13642819908223099] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- C. Tosello
- a Istituto Nazionale per la Fisica delia Materia, Dipartimento di Fisica, Università di Trento , via Sommarive 14, I-38050 , Povo , Trento , Italy
| | - S. Ronchin
- a Istituto Nazionale per la Fisica delia Materia, Dipartimento di Fisica, Università di Trento , via Sommarive 14, I-38050 , Povo , Trento , Italy
| | - E. Moser
- a Istituto Nazionale per la Fisica delia Materia, Dipartimento di Fisica, Università di Trento , via Sommarive 14, I-38050 , Povo , Trento , Italy
| | - M. Montagna
- a Istituto Nazionale per la Fisica delia Materia, Dipartimento di Fisica, Università di Trento , via Sommarive 14, I-38050 , Povo , Trento , Italy
| | - P. Mazzoldi
- b Istituto Nazionale per la Fisica delia Materia, Dipartimento di Fisica, Università di Padova, via Marzolo 8 , 1-35131, Padova , Italy
| | - F. Gonella
- b Istituto Nazionale per la Fisica delia Materia, Dipartimento di Fisica, Università di Padova, via Marzolo 8 , 1-35131, Padova , Italy
| | - M. Ferrari
- c Consiglio Nazionale delie Ricerche CeFSA , Centro Fisica Stati Aggregati , via Sommarive 14, 1-38050 , Povo , Trento , Italy
| | - C. Duverger
- a Istituto Nazionale per la Fisica delia Materia, Dipartimento di Fisica, Università di Trento , via Sommarive 14, I-38050 , Povo , Trento , Italy
| | - R. Belli
- d Dipartimento di Ingegneria Meccanica e Strutturale , Università di Trento , via Mesiano 44, I-38050 , Povo , Trento , Italy
| | - G. Battaglin
- e Istituto Nazionale per la Fisica delia Materia, Dipartimento di Chimica-Fisica, Università di Venezia , Dorsoduro 2137, 30123 , Venezia , Italy
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Nedelec JM, Grimblot J, Turrell S, Bouazaoui M. Characterization and Effect of Hydrogen Treatment and UV Irradiation on Photosensitive Sol−Gel Derived Aluminosilicate Planar Waveguides. J Phys Chem B 2000. [DOI: 10.1021/jp992767n] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. M. Nedelec
- Laboratoire de Spectrochimie Infrarouge et Raman, CNRS UMR 8516, Bât. C8, Laboratoire de Catalyse de Lille, UPRESA 8010, Bât. C3, and Laboratoire de Physique des Lasers, Atomes et Molécules, CNRS UMR 8523, Bât P5, Centre d'Etudes et de Recherches Laser et Applications, Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France
| | - J. Grimblot
- Laboratoire de Spectrochimie Infrarouge et Raman, CNRS UMR 8516, Bât. C8, Laboratoire de Catalyse de Lille, UPRESA 8010, Bât. C3, and Laboratoire de Physique des Lasers, Atomes et Molécules, CNRS UMR 8523, Bât P5, Centre d'Etudes et de Recherches Laser et Applications, Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France
| | - S. Turrell
- Laboratoire de Spectrochimie Infrarouge et Raman, CNRS UMR 8516, Bât. C8, Laboratoire de Catalyse de Lille, UPRESA 8010, Bât. C3, and Laboratoire de Physique des Lasers, Atomes et Molécules, CNRS UMR 8523, Bât P5, Centre d'Etudes et de Recherches Laser et Applications, Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France
| | - M. Bouazaoui
- Laboratoire de Spectrochimie Infrarouge et Raman, CNRS UMR 8516, Bât. C8, Laboratoire de Catalyse de Lille, UPRESA 8010, Bât. C3, and Laboratoire de Physique des Lasers, Atomes et Molécules, CNRS UMR 8523, Bât P5, Centre d'Etudes et de Recherches Laser et Applications, Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France
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Duverger C, Nedelec JM, Benatsou M, Bouazaoui M, Capoen B, Ferrari M, Turrell S. Waveguide Raman spectroscopy: a non-destructive tool for the characterization of amorphous thin films. J Mol Struct 1999. [DOI: 10.1016/s0022-2860(98)00694-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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