Thin silicon heterojunction solar cells in perovskite shadow: Bottom cell prospective

High bandgap perovskites for efficient indoor light harvesting

Appointment of Kaining Ding as the Meeting Chair for the upcoming 2024 MRS Spring Conference

Publication "CO2 electroreduction to syngas with tunable composition in an artificial leaf" in Chem. Sus. Chem. journal

The magic of physics: Science to marvel at

Rise and Decay of the Photovoltage

Distinguishing between recombination and charge extraction is a challenge for solar cell characterization. Using the rise and decay of the transient photovoltage after a laser pulse can be a solution for the problem.

Characterizing Energetic Disorder in Organic Solar Cells

Energetic disorder reduces solar cell efficiencies but is difficult to characterize. Hartnagel et al. perform a comparative study of different methods to quantify disorder and show how method-specific bias in the resulting values can modify the results.

Do Diffusion Lengths Really Matter for Perovskite Solar Cells?

The diffusion length is frequently used to explain poor charge collection in halide perovskite solar cells. However, in the presence of only moderately conductive charge transport layers, non-linear series resistances can modulate the carrier density and thereby the recombination losses even if transport in the perovskite itself is nearly perfect.

Interpretation of time constants from frequency domain measurements of perovskite solar cells

Ravishankar et al. developed a model to describe the frequency domain response of perovskite solar cells with an emphasis on the role of transport layers. Application to experimental data identifies that measured time constants are limited by charge carrier extraction rather than by recombination.

CO2 electroreduction to syngas with tunable composition in an artificial leaf

The diffusion length is frequently used to explain poor charge collection in halide perovskite solar cells. However, in the presence of only moderately conductive charge transport layers, non-linear series resistances can modulate the carrier density and thereby the recombination losses even if transport in the perovskite itself is nearly perfect.

Insights into the Si-H Bonding Configuration in SHJ Solar Cells by Raman and FTIR Spectroscopy

Using Raman and FTIR spectroscopy, we show insights into the microstructure at the amorphous/crystalline silicon interface in SHJ solar cells

Improving the Electron Contact in SHJ Solar Cells by Phosphorus Catalytic Doping

We introduce a post-doping process of a-Si:H layer on the electron selective side of SHJ solar cells, resulting in a layer that combines interface passivation and high carrier selectivity

Material Properties of nc-SiC:H for Transparent Passivating Contact Solar Cells

By varying process parameters, we change the properties of the nc-SiC:H layer in TPC solar cells and investigate their influence on the device properties