Highly Transparent and Conductive Indium‐Free Vanadates Crystallized at Reduced Temperature on Glass Using a 2D Transparent Nanosheet Seed Layer
A. Boileau, Simon Hurand, Florent Baudouin, Ulrike Lüders, Marie Dallocchio, Bruno Bérini, Aïmane Cheikh, Adrian David, F. Paumier, Thierry Girardeau, P. Marié, Christophe Labbé, Julien Cardin, Damien Aureau, Mathieu Frégnaux, Maryline Guilloux‐Viry, W. Prellier, Yves Dumont, Valérie Demange, Arnaud Fouchet
Abstract
Abstract Indium‐tin‐oxide (ITO) is a widely employed transparent conducting oxide (TCO), but the indium scarcity and price encourage developing some alternatives. The correlated metals CaVO 3 and SrVO 3 have been recently identified as new TCOs with functional properties being comparable to ITO. However, their technological potential is limited by the critical requirement of a perovskite structure of the film, impossible to achieve via direct growth on substrates commonly used for applications. In this article, the authors tackle this limitation by demonstrating the crystalline growth of vanadate TCOs on glass at temperatures below 600 °C, with the help of 2D nanosheets as transparent seed layers. The functional properties do not suffer from the textured structure of the films, as confirmed by an in‐depth spectroscopic ellipsometry study, allowing for an industrially viable approach to integrate vanadate TCOs on virtually any surface and to exploit their promising performances as a new generation TCO.