Dresden 2017 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 68: Electronic Structure Theory: New Concepts and Developments in Density Functional Theory and Beyond - VII

MM 68.8: Vortrag

Donnerstag, 23. März 2017, 18:00–18:15, GER 38

High-throughput computational search for new high mobility transparent (semi)conducting materials — •Geoffroy Hautier1, Joel Varley2, Anna Miglio1, David Waroquiers1, Viet-Anh Ha1, and Gian-Marco Rignanese11Université catholique de Louvain, Louvain-la-Neuve, Belgium — 2Lawrence Livermore National Laboratory

Transparent conducting oxides (TCMs) are large band gap materials (to favor transparency) doped with electrons (n-type) or holes (p-type). TCMs are essential to many technologies from solar cell to transparent electronics and there is currently a large effort towards the discovery of new TCMs. I will present the results of a high-throughput computational search for new TCMs especially directed at p-type materials. Focusing on low effective masses (leading to high mobility), large band gaps and dopability, I will show how thousands of compounds can be screened using various ab initio techniques (from density functional theory to GW) to find new potential high performance TCMs. I will discuss several unsuspected compounds with promising electronic structures and when available link our findings to experimental results. Beyond the description of those novel TCM candidates, I will chemically rationalize our findings, highlighting several design strategies towards the development of future high mobility TCMs.

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DPG-Physik > DPG-Verhandlungen > 2017 > Dresden