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Teaching an old dog new tricks: Ti-doped ZnFe2O4 as active material in zinc ion batteries – a proof of concept

Fig. 5 from “Teaching an old dog new tricks: Ti-doped ZnFe2O4 as active material in zinc ion batteries – a proof of concept” by Susanna Krämer et al. 2024: (a) Work function (Φ) measurements of ZFO, ZFTO7 and ZFTO13 (black squares) and data for the band gap energies (Eg) calculated from the Tauc plot for all samples except ZFTO25 (red circles). Error bars of work function are standard deviation from the average value. (b) Exemplary KPFM image of ZFO with grain boundaries showing lower surface potential (blue) than grain interior (green). Kelvin Probe Force Microscopy (KPFM) measurements were performed in an Ar atmosphere using a commercially available atomic force microscopy with conductive NANOSENSORS PPP-NCSTPt AFM tips. *

ZnFe2O4 is a well-investigated, versatile material with a spinel structure, which reportedly shows electrical conductivity in the range of 5 to 10 mS cm−1, a… Read More »Teaching an old dog new tricks: Ti-doped ZnFe2O4 as active material in zinc ion batteries – a proof of concept

Operando Characterizations of Light-Induced Junction Evolution in Perovskite Solar Cells

by NANOSENSORS
30 May 202330 May 2023
Science & Technology

Figure 1 from “Operando Characterizations of Light-Induced Junction Evolution in Perovskite Solar Cells” by Chuanxiao Xiao et al. Experiment schematic. KPFM scans on the cleaved cross-sectional surface. Ultrafast spectroscopy measurements were in both TA and TR setups. NANOSENSORS Platinum-Iridium coated PointProbe Plus PPP-EFM AFM probes were used for the Kelvin Probe Force Microscopy.

Light-induced performance changes in metal halide perovskite solar cells (PSCs) have been studied intensively over the last decade, but little is known about the variation… Read More »Operando Characterizations of Light-Induced Junction Evolution in Perovskite Solar Cells