Above-Bandgap Photovoltages in Antiferroelectrics

Adv Mater. 2016 Nov;28(43):9644-9647. doi: 10.1002/adma.201603176. Epub 2016 Sep 15.

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.

Keywords: above bandgap voltages; antiferroelectrics; photovoltaics.