Transparent conductors-nearly an oxymoron-are in pressing demand, as ultra-thin-film technologies become ubiquitous commodities. As current solutions rely on non-abundant elements, perovskites such as SrVO3 and SrNbO3 have been suggested as next generation transparent conductors. Our ab-initio calculations and analytical insights show, however, that reducing the plasma frequency below the visible spectrum by strong electronic correlations-a recently proposed strategy-unavoidably comes at a price: an enhanced scattering and thus a substantial optical absorption above the plasma edge. As a way out of this dilemma we identify several perovskite transparent conductors, relying on hole doping, somewhat larger bandwidths and separations to other bands.
@article{arxiv.2009.14000,
title = {Pitfalls and solutions for perovskite transparent conductors},
author = {Liang Si and Josef Kaufmann and Jan M. Tomczak and Zhicheng Zhong and Karsten Held},
journal= {arXiv preprint arXiv:2009.14000},
year = {2021}
}