Photovoltages in perovskite-type oxide thin film cells

Maximilian Morgenbesser, Alexander Viernstein, Niklas Bodenmüller, Stefanie Taibl, Markus Kubicek, Jürgen Fleig
2020 Zenodo  
SrTiO3 (STO), a perovskite-type oxide, shows many interesting effects under UV light illumination, such as an increase in oxygen incorporation rate, an enhancement in conductivity and a change in color in Fe doped STO single crystals. The increased oxygen uptake under UV light has also been used for a battery-type voltage in STO under UV light irradiation. With a top layer, e.g. (La,Sr)CrO3 (LSCr), much higher photovoltages can be realized. Such high temperature solid oxide photovoltaic (PV)
more » ... hotovoltaic (PV) cells are promising due to their possible combination with solid oxide electrolyzer cells (SOEC). By using a common electrode of a PV cell and an underlying SOEC it is possible to directly transfer light to chemical energy. However, optimization of voltage and power of such high temperature PV cells is still required. In this study, different materials (e.g. (La, Sr)(Cr,Mn)O3 (LSCrM), (La,Sr)CoO3 (LSC), (La,Sr)FeO3 (LSF) and NdNiO3 (NNO),...) were tested for their applicability in oxide solar cells and mechanistic insight in processes under UV is gained.
doi:10.5281/zenodo.3820272 fatcat:3dmywpsvbvedtass4yxspd6jiy