Above-Bandgap Photovoltages in Antiferroelectrics.

Pérez-Tomás, Amador; Lira-Cantú, Monica; Catalan, Gustau · Adv Mater · 2016

basic_science · Level V

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Abstract

The first antiferroelectric solar cell is presented. This study shows that antiferroelectric thin-film photovoltaic current can be switched on when biased into the polar phase to generate abovebandgap photovoltages in excess of 100 V and photovoltaic fields of several megavolts per centimeter, the largest ever measured for any material.