Spinodal decomposition introduces strain-enhanced thermochromism in polycrystalline V1−xTixO2 thin films

Author:

Belenchuk Alexander1ORCID,Shapoval Oleg1,Roddatis Vladimir2,Stroh Karen3ORCID,Vatavu Sergiu1,Wawra Jonas3,Moshnyaga Vasily3ORCID

Affiliation:

1. Physics of Semiconductors & Devices Laboratory, Department of Physics and Engineering, Moldova State University, 60A Mateevici str., MD-2009 Chişinău, Republic of Moldova

2. Institut für Materialphysik, Georg-August-Universität-Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany

3. Erstes Physikalisches Institut, Georg-August-Universität-Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany

Abstract

Spinodal decomposition in polycrystalline V0.65Ti0.35O2 films yields a nanocomposite with V- and Ti-rich layers. Strain-enhanced thermochromism due to compression of V-rich phase decreases both the temperature and width of metal–insulator transition.

Funder

Deutsche Forschungsgemeinschaft

Science and Technology Center in Ukraine

Agenţia Naţională pentru Cercetare şi Dezvoltare

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science

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