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Robust, Transparent Hybrid Thin Films of Phase-Change Material Sb2S3 Prepared by Electrophoretic Deposition

Hassam, Christopher L. and Sciortino, Flavien and Nguyen, Ngan T.K. and Srinivasan, Bhuvanesh and Ariga, Katsuhiko and Gascoin, Franck and Grasset, Fabien and Mori, Takao and Uchikoshi, Tetsuo and Thimont, Yohann and Berthebaud, David Robust, Transparent Hybrid Thin Films of Phase-Change Material Sb2S3 Prepared by Electrophoretic Deposition. (2021) ACS Applied Energy Materials, 4 (9). 9891-9901. ISSN 2574-0962

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Official URL: https://doi.org/10.1021/acsaem.1c01899


Thin films of polyethylenimine-stabilized Sb2S3 are prepared via electrophoretic deposition (EPD), showing strong adhesion between the deposited layers and the underlying substrate, with the films being crystallized via annealing. For amorphous films, thicknesses can be freely tuned from 0.2 to 1 μm, shrinking to 0.1–0.5 μm when crystallized, while retaining a crack- and defect-free surface, thus not impacting their good stability and maintaining their optical properties. Through UV–vis spectroscopy and subsequent modeling of the obtained spectra, it was concluded that the materials after annealing showed a reduced band gap and a demonstrably increased refractive index (n) and carrier concentration. The use of EPD for this material shows the viability of rapidly creating stable thin films of phase-change materials.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > International Center for Materials Nanoarchitectonics - WPI-MANA (JAPAN)
Other partners > National Institute for Materials Science - NIMS (JAPAN)
Other partners > University of Tokyo (JAPAN)
Other partners > University of Tsukuba (JAPAN)
Laboratory name:
Deposited On:21 Jan 2022 13:37

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