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Poster

WEB Synchrotron radiation X-ray powder diffraction and magnetometric study of natural and synthetic terms of the stannite-kesterite pseudobinary system in the low temperature regime (5-275 K)

Friday (28.02.2020)
08:04 - 08:04 Poster Room
Part of:
Line-Up:
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- Poster TBA -
- Poster *web*Combustion Synthesis of High Entropy Alloys thin films 1 Dr. Anni Wang
- Poster *web*Surface macro-smoothing and micro-structuring of additive manufactured components by using DLIP technique for controlling wetting characteristics 1 Dipl.-Ing. Florian Kuisat
- Poster *web*Influence of embedding materials on heat transfer and ignition transfer time in heterogeneous reactive material system 1 Mostafa Baloochi
- Poster TBA -
- Poster *web*Self reactive joining process with multilayer foils in lap joint configuration 1 Marcus Glaser
- Poster *web*Thermodynamics and kinetics of phase formation in magnetron-sputtered Ni/Al multilayer thin films with nanoscale morphology 1 Sascha Sebastian Riegler
- Poster *web*Femtosecond laser approach to cut Ni/Al reactive foils without ignition of a self-propagation reaction 1 Maria Amelia Martins
- Poster *web*Effect of preparation angle on atom probe tomography of reactive multilayers 1 Christian Schäfer
- Poster *web*Reactive Ni/Al multilayers with 3D Morphologies 1 Konrad Jaekel
- Poster *web*Synchrotron radiation X-ray powder diffraction and magnetometric study of natural and synthetic terms of the stannite-kesterite pseudobinary system in the low temperature regime (5-275 K) 1 Dr. Francesco Di Benedetto
- Poster *web*Coating and Drying of Sodium-Ion-Battery Electrodes 1 Julian Klemens
- Poster *web*Analytical prediction model for Direct Laser Interference Patterning 1 Dr. Bogdan Voisiat
- Poster *web*CFD Analysis of joining processes using reactive multilayers on native surface morphologies of microelectronic substrates 1 Erik Wiss
- Poster *web*Top-Hat profile in Direct Laser Interference Patterning: Is it worth it? 1 Mikhael El-Khoury
- Poster *web*Laser-based (“2D”) surface treatment of lithium-ion battery electrodes to improve the rate capability 1 Jens Sandherr
- Poster *web*Microstructure investigation of superconducting NbN thin films on copper 1 Dipl.-Ing. Ying Li
- Poster TBA -
- Poster *web*Laser functionalized PEEK-based coating systems to minimize friction and wear 1 Dr. Tim Kunze
- Poster *web*Structure and Dynamics in a Layered Na-ion Battery Cathode 1 Euan Bassey
- Poster *web*Electrode-Processing using porous nano-structured Na3V2(PO4)3 (NVP) for Sodium-Ion Batteries 1 Luca Schneider
- Poster TBA -
- Poster *web*Experimental Approach for Phase Diagram determination of Li alloys 1 Joel Fels
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- Poster *web*Overheating microstructural study of nickel-based superalloys from turbine blades of aircraft engines 1 Dr. Ana Pastor
- Poster *web*Electrochemical thermodynamics of Lithium Batteries and their materials 1 Prof. Dr. Hans Jürgen Seifert
- Poster *web*Corrosion Analysis of a 316L Stainless Steel Gas Outlet Sealed with a Copper Ring Used in the CO2 Methanation Process 1 Ananya Prechavut
- Poster *web*Self-propagating reaction of structured reactive Al/Ni multilayers 1 Yesenia Sauni
- Poster *web*3D structured electrodes for Li-ion batteries using open porous metal foams as current collector for high energy application 1 Jonas Oehm
- Poster *web*Novel air stable single source precursor for homogeneous crystalline TiS2 thin films 1 Anja Sutorius
- Poster *web*Synthesis of nickel-copper composite with controllable nanostructure through facile solvent control as positive electrode for high-performance supercapacitors 1 Dr. Damin Lee
- Poster *web*Towards understanding response generation in conductometric gas sensors 1 Stefan Kucharski
- Poster Effects of 3D electrode design on high-energy silicon-graphite anode materials 1 Yijing Zheng

Session -F: Functional Materials, Surfaces, and Devices
Belongs to:
Topic X: Poster Session


Stannite and kesterite are minerals considered as promising p-type semiconductor materials for the thin film photovoltaic technology. Nowadays, the research is still unravelling the way to optimise performance in this task. This proposal is aimed at realising a temperature dependent X-ray Powder Diffraction (XRPD) investigation of synthetic and natural samples, to ascertain the occurrence and the relevance of a new low temperature polymorph. Accordingly, the temperature dependence of the structural features of four samples belonging to pseudobinary system stannite-kesterite Cu2Fe1-xZnxSnS4 (with x=0.1, 0.3, 0.5, 1) has been investigated using high quality synchrotron XRPD in the temperature range 5 - 275 K. Experimental measurements were carried out at the ID22 beamline of ESRF (Grenoble, France).

The lattice parameters, the free positional atomic parameters and the thermal parameters were determined by means of Rietveld analysis and compared with the local structural information let available by the study of the pair distribution function (PDF) carried out at both 5 and 275 K.

The kesterite sample (x=1) has been refined in both space groups I4 ̅2m and I4 ̅ but a careful analysis suggested a preference for the I4 ̅ model. The unit-cell volume, for all samples but the sample with x=0.3, continuously decreases on cooling, exhibiting an overall elastic and thermodynamic behaviour well modelled by the Grüneisen fit.

Conversely, the sample with x=0.3 undergoes an abrupt contraction at ~50-60 K, where an iso-structural transition takes place. The SQUID measurements on sample x=0.1 put in evidence important results and identified an antiferromagnetic transition at 7.3 K.

Speaker:
Dr. Francesco Di Benedetto
Universita di Firenze
Additional Authors:
  • Lorenzo Donini
    Università degli Studi di Firenze
  • Giordano Montegrossi
    National Research Council
  • Dr. Andrea Giaccherini
    Università degli Studi di Firenze
  • Dr. Alberto Martinelli
    National Research Council